| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324140000 | Plural inputs (e.g., summation, ratio) | 69 |
| 20080258711 | Power gauge for accurate measurement of load current - According to one exemplary embodiment, a power gauge for accurately measuring current consumed by a load coupled to a power source includes a current sense resistor having a first terminal coupled to the power source and a second terminal coupled to the load. The power gauge further includes a first integrator configured to integrate a voltage at the first terminal of the current sense resistor during a time period and to output a first integrated voltage. The power gauge further includes a second integrator configured to integrate a voltage at the second terminal of the current sense resistor during the time period and to output a second integrated voltage. A difference between the first and second integrated voltages can be used to accurately determine the current consumed by the load during the time period. | 10-23-2008 |
| 20090045804 | Cognitive electric power meter - An electric power meter includes an embedded decomposition module that is configured to decompose a power meter signal into constituent loads to segregate and identify energy consumption associated with each individual energy consumption device within a plurality of energy consumption devices coupled to the power meter. | 02-19-2009 |
| 20090295370 | Branch meter with strip adjustment - A power monitoring system. | 12-03-2009 |
| 20090309575 | MULTI-OUTPUT DETERMINATION CIRCUIT - An embodiment of the present invention provides a multi-output determination circuit that determines whether or not any one input voltage of a plurality of input voltages is equal to or higher than an upper-limit voltage value. This multi-output determination circuit includes a first diode-OR, upper-limit reference voltage generation means, and a first comparator. The first diode-OR includes a plurality of first diodes whose anodes are each connected to a respective one of the plurality of input voltages and whose cathodes are connected in common. The upper-limit reference voltage generation means has a first resistor, the first diode, and a second resistor that are connected in series between first and second power supply potentials, and generates an upper-limit reference voltage based on the voltage of the cathode of the first diode. The first comparator compares the output voltage of the first diode-OR with the upper-limit reference voltage. | 12-17-2009 |
| 20100072982 | TEST EQUIPMENT AND TEST SYSTEM USING THE SAME - A test equipment to test power over Ethernet (PoE) function of an Ethernet device comprises a first connector, a second connector, a data signal transmission circuit, a first polarity determination circuit, a second polarity determination circuit and a notification circuit. The first connector receives and transmits data signals and power signals transmitted by the Ethernet device. The data signal transmission circuit transmits the data signals to the second connector and outputs the power signals. The first and second polarity determination circuits receive and output the power signals to the notification circuit. The notification circuit receives the power signals and consequently generates a notice to indicate the PoE function of the Ethernet device is normal. | 03-25-2010 |
| 20100085037 | System and Method for Measuring Reactive Power - A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees. | 04-08-2010 |
| 20100117626 | ANALOG AND DIGITAL INDICATING METER - An analog and digital indicating electronic meter provides a digital readout of a measured value, and a pointer indication of the measured value on a selectable analog scale configured to match the measured value. | 05-13-2010 |
| 20100148758 | SYSTEMS AND METHODS FOR ON-CHIP POWER MANAGEMENT - A power measurement system is disclosed for use on an integrated circuit for measuring the power used by the integrated circuit. The power measurement system includes a low-dropout voltage regulator and a signal input unit. The low-dropout voltage regulator includes a power transistor that couples a supply voltage to a circuit to be powered by the supply voltage, and the low-dropout voltage regulator provides an internal adjustment signal (V | 06-17-2010 |
| 20100171486 | EFFICIENT RESISTIVITY MEASUREMENT METHOD BY MULTI-POINT SIMULTANEOUS CURRENT TRANSMISSION SYSTEM USING PSEUDO-NOISE SIGNAL WAVEFORM - To solve problems with conventional art, the present invention aims to significantly reduce measurement time for electrical resistivity profiling and logging without degrading the quality of the measurement by simultaneously transmitting a current from multiple points to underground and carrying out mathematic processing to calculate a potential obtained when a current is transmitted independently from any transmission point, based on observed response potential waveforms. At simultaneously transmission from multiple points, such current waveforms as zero the covariance thereof are selected. Then, a possible response obtained independently at transmission point can be determined by dividing the covariance of the observed potential waveform and the current waveform by the variance of the current waveform. As the waveform zeroing the covariance, an M-sequence code with zero added to the end thereof is applied. | 07-08-2010 |
| 20100207604 | Branch current monitor with calibration - A meter for measuring electric power consumed by a plurality of branch circuits includes interchangeable current transformers including respective transformer memories for storage of transformer characterization data and enables self-discovery of a phase shift induced by respective current transformers and the phase of current conducted by each branch circuit. | 08-19-2010 |
| 20100207605 | Power supply control apparatus including overcurrent detection circuit - Provided is a power supply control apparatus including an overcurrent detection circuit with enhanced overcurrent detection accuracy. A power supply control apparatus according to the present invention includes: an output transistor Q | 08-19-2010 |
| 20100301837 | POWER MEASURING SYSTEM, MEASURING APPARATUS, LOAD TERMINAL, AND DEVICE CONTROL SYSTEM - A power measuring system, a measuring apparatus, a load terminal, and a device control system are provided, which need no special installation work to be made by any skillful professionals such as persons qualified for electrical work. A voltage sensor detects a voltage waveform of a power line in a noncontact manner, and a current sensor acquires a current waveform of the power line in a noncontact manner. A measuring portion of a load terminal operates a contact means to connect the power line and a voltage measuring terminal to measure a current flowing from the power line to a load and to calculate a voltage value from the measured current value and the load. The measuring portion of the load terminal transmits, in response to a request from a measuring apparatus, the measured current value and the calculated voltage value to the measuring apparatus via a communication means. A control portion of the measuring apparatus receives the current value and the voltage value from the load terminal via a communication means. The control portion calculates a power value based on the received current value and voltage value, as well as on the voltage waveform acquired from the voltage sensor and the current waveform acquired from the current sensor. | 12-02-2010 |
| 20110006756 | POWER MEASUREMENT SYSTEM, METHOD AND/OR UNITS - The invention provides a system ( | 01-13-2011 |
| 20110043191 | Phoenix probe X voltage tester - The present invention a cordless power tester that is capable of reading multiple input and output voltage. This tool will provide a mechanic or electrician with all the information that is needed when searching for a short circuit, or other circuit interruption in an electrical circuit. When such a short is located, indicated where the problem is located. The Phoenix Probe X is easy to use and easy to read. | 02-24-2011 |
| 20110115473 | MULTI-ELECTRODE MEASURING SYSTEM - The invention provides a multi-electrode measuring system including a front end device which is a sensing device including a multi-electrode sensing device having a plurality of electrodes; a multi-channel fixture coupled to the multi-electrode sensing device; and a reference electrode. A back-end device as a virtual instrumentation is an electronic device including a read out circuit device coupled to the multi-channel fixture and the reference electrode for receiving each original signal from each electrode of the multi-electrode sensing device and the reference electrode determining a sample solution; a data acquisition device coupled to the read out circuit device for digitizing each original signal to form a digital signal and for array sampling; and a signal processing device coupled to the data acquisition device for processing each signal. | 05-19-2011 |
| 20110115474 | DETECTION SYSTEM, SEMICONDUCTOR DEVICE, AND DATA PROCESSING DEVICE - To provide an LSI having a low power mode that can prevent an apparatus on which the LSI is mounted from resulting in performance degradation, etc. even when its electric power is not reduced in the low power mode. Devised is a circuit that instructs an operation mode and detects whether the LSI operates as specified by the mode, and that measures a current at the time of the low power mode in a pseudo manner and, if despite having shifted to the low power mode, the current is not reduced actually, issues an alarm signal. | 05-19-2011 |
| 20110115475 | ELECTRONIC DEVICE AND APPARATUS FOR IDENTIFYING ELECTRONIC PRODUCT - An apparatus for identifying an electronic product and an electronic device are disclosed. The apparatus includes: a detection voltage outputting unit, configured to receive a reference voltage and output a detection voltage; a detection voltage obtaining unit, connected to the detection voltage outputting unit and configured to obtain the value of the detection voltage; a mapping storing unit, configured to store a mapping between the value of the detection voltage and a product identifier; and a product identifier obtaining unit, configured to obtain the product identifier corresponding to the value of the detection voltage from the mapping storing unit according to the value of the detection voltage obtained by the detection voltage obtaining unit. With the apparatus for identifying an electronic product, the number of occupied chip detection ports is reduced, and the use area of a printed circuit board (PCB) is reduced. | 05-19-2011 |
| 20110193550 | LOGARITHMIC MEAN-SQUARE POWER DETECTOR - A mean square power detector in accordance with one or more embodiments includes a gain or attenuation circuit comprising a plurality of gain or attenuation elements arranged for generating a plurality of amplified or attenuated versions of a radio frequency (RF) input signal. The mean square power detector also includes a plurality of mean square detectors coupled to the gain or attenuation circuit. Each of the mean square detectors receives a different one of the plurality of amplified or attenuated versions of the RF input signal. Each of the plurality of mean square detectors generates an output signal representative of the mean square power of the RF input signal for a different input signal level range. A summing element is coupled to the plurality of mean square detectors for combining the output signals of the plurality of mean square detectors to generate a signal representative of the mean square or root mean square of the RF input signal. | 08-11-2011 |
| 20110241655 | BIDIRECTIONAL 3 PHASE POWER METER FOR COMPENSATING REVERSE LOAD FLOW AND METHOD FOR METERING THEREBY - The present invention relates to a bidirectional 3 phase power meter for compensating reverse load flow and a method for metering thereby. According to the present invention, there is provided a bidirectional 3 phase power meter for compensating reverse load flow which allows calculating power receiving and power transmitting apparent power and power factor using the detected voltage/current and a method for metering thereby. | 10-06-2011 |
| 20110304321 | Electric power metering device and method - The electric power metering device comprises a pulse meter to provide an electric pulse or a closing of an electric circuit at each predefined quantity of electric power. A communication module is connected to said pulse meter to send electric power and/or consumed electric power information. Two inputs of the communication module receive the connection with the pulse meter. Said communication module comprises discrimination means connected to the inputs to differentiate power pulse information and status information of an electric apparatus connected to said inputs. The electric power metering method comprises a discrimination step to differentiate power pulse information and status information of an electric apparatus connected to said inputs of the communication module | 12-15-2011 |
| 20120056614 | Multi-State Indicator - A multi-state indicator comprises a voltage generator, for generating M voltages, with M being an integer larger than 3; and a multi-state detector, coupled to the voltage generator, for receiving M voltages, having a voltage input end for receiving an input voltage to generate an indication signal whereby the indication signal is capable of indicating the input voltage with reference to the M voltages. Unlike the prior art, a multi-state detector having level shifters according to the present invention alleviates problems of static currents and over-large areas for circuits implementing typical differential comparators. | 03-08-2012 |
| 20120062212 | Zero Bias Power Detector - A zero bias power detector comprising a zero bias diode and an output boost circuit is provided. The output boost circuit comprises a zero bias transistor. The zero bias diode is not biased but outputs a rectifying signal according to a wireless signal. The zero bias transistor, not biased but coupled to the zero bias diode, is used for enhancing the rectifying signal. | 03-15-2012 |
| 20120086436 | Determining Components of an Electric Service - Components of an electric service may be identified by measuring voltage signals relating to the connection of an electrical energy meter connected to the electric service. The voltage signals that may be measured include line to neutral voltages and line to line voltages. The values of the measured voltage signals may be compared to reference information comprising tabulated values that may be tabulated as ratios of nominal service voltages associated with different service types. | 04-12-2012 |
| 20120126792 | STRUCTURES AND METHODS FOR RF DE-EMBEDDING - Electrical structures, methods, and computer program products for radio frequency (RF) de-embedding are provided. A structure includes a first test device, a first through structure corresponding to the first test device, and a first open structure corresponding to the first test device. The structure also includes a second test device having at least one different physical dimension than the first test device but otherwise identical to the first test device, a second through structure corresponding to the second test device, and a second open structure corresponding to the second test device. A method includes determining a first electrical parameter of the first test device in a first DUT structure and a second electrical parameter of the second test device in a second DUT structure based on measured electrical parameters of the first and the second DUT structures, through structures, and open structures. | 05-24-2012 |
| 20120146624 | Voltage Reference Selector For Use In Conjunction With A Multi-Meter In Taking Electrical Measurements From An Electrical Control Panel - A voltage reference selector, used in conjunction with a multi-meter, allows user selection of a reference voltage to be used by the multi-meter from three different reference voltages of an electrical control panel when taking electrical measurements from the electrical control panel via the multi-meter. A portable voltage reference selector can be carried with and electrically connected to a multi-meter and be temporarily electrically connected to voltage reference points of an electrical control panel for taking electrical measurements from the electrical control panel with the multi-meter. In this form, a test lead from the multi-meter is used to obtain electrical measurements from the electrical control panel. A permanent voltage reference selector is permanently connected to voltage reference points of an electrical control panel and is electrically connectable to a multi-meter for taking electrical measurements from the electrical control panel with the multi-meter. In this form, a test lead of the voltage reference selector is used to obtain electrical measurements from the electrical control panel. | 06-14-2012 |
| 20120242327 | FULLY DIFFERENTIAL SIGNAL PEAK DETECTION ARCHITECTURE - A signal detector includes a summation unit connected to offset first and second input signals representing a differential input signal into two offset pairs of first and second signals. The signal detector also includes a detection unit connected to select the first signal from one of the offset pairs of first and second signals and the second signal from the other of the offset pairs in an overlap portion of the first and second signals to form a complementary pair of overlap signals and provide a differentially peak-detected output signal from the complementary pair of overlap signals. Additionally, the signal detector includes a comparator connected to provide a detection output signal corresponding to the differentially peak-detected output signal and a reference signal. A method of operating a signal detector is also included. | 09-27-2012 |
| 20130021020 | POWER SOURCE MONITORING DEVICE, LENS BARREL, CAMERA, AND POWER SOURCE MONITORING METHOD - There are provided a first voltage applied part connected to a first voltage supply part and applied with a first voltage by the first voltage supply part on the basis of a first portion, a second voltage applied part connected to a second voltage supply part and applied with a second voltage by the second voltage supply part on the basis of a second portion, and a voltage monitoring part connected to the second portion and the second voltage applied part, operating when the second voltage is applied, and detecting the first voltage on the basis of the first portion. | 01-24-2013 |
| 20130027025 | METHOD AND APPARATUS FOR MEASURING AC VOLTAGES - A method and apparatus for measuring an AC voltage. In one embodiment, the apparatus comprises an AC voltage monitor coupled to a plurality of AC lines for (i) generating a first measurement based on an AC voltage across a first resistor, (ii) generating a second measurement based on an AC line voltage of an AC line of the plurality of AC lines, and (iii) generating a serial data stream frame based on the first and the second measurements. | 01-31-2013 |
| 20130063130 | IMAGE FORMING SYSTEM, POWER CALCULATION METHOD, AND POWER CALCULATING APPARATUS - According to an embodiment, an image forming system includes: an image forming apparatus; a peripheral device; and a first control unit. The image forming apparatus includes a first voltage detecting unit that detects voltage of a first power source supplied by an external power source, and outputs as first voltage value; and a first current detecting unit that detects current of the first power source, and outputs as first current value. The peripheral device includes a second voltage detecting unit that detects voltage of a second power source supplied by an external power source, and outputs as second voltage value; and a second current detecting unit that detects current of the second power source and outputs as second current value. The first control unit calculates total power value of the image forming system based on: the first voltage value; first current value; second voltage value; and second current value. | 03-14-2013 |
| 20130106402 | Power Source Arrangement and Method of Diagnosing a Power Source Arrangement | 05-02-2013 |
| 20140117975 | MULTIPLEXER FOR VOLTAGE MEASUREMENT AND VOLTAGE MEASURING UNIT INCLUDING THE SAME - A multiplexer for voltage measurement includes: a first switch disposed on a first channel extending between at least one high-voltage input terminal and an output terminal; a plurality of second switches respectively disposed on second channels each extending between each of input terminals other than the high-voltage input terminal and the output terminal; and a third switch disposed between a group of the plurality of second switches and an output terminal side end of the first switch. Each of the first switch and the third switch is configured to operate even by a voltage higher than a power supply voltage. | 05-01-2014 |
| 20140125322 | NANOGAP DEVICE AND METHOD OF PROCESSING SIGNAL FROM THE NANOGAP DEVICE - A nanogap device which may include a first insulation layer having a nanopore formed therein, a first channel layer which may be on the first insulation layer, a first source electrode and a first drain electrode which may be respectively in contact with both ends of the first channel layer, a second insulation layer which may cover the first channel layer, the first source electrode, and the first drain electrode, and a first nanogap electrode which may be on the second insulation layer and may be divided into two parts with a nanogap, which faces the nanopore, interposed between the two parts. | 05-08-2014 |
| 20140152295 | LOGARITHMIC MEAN-SQUARE POWER DETECTOR - A mean square power detector in accordance with one or more embodiments includes a gain or attenuation circuit comprising a plurality of gain or attenuation elements arranged for generating a plurality of amplified or attenuated versions of a radio frequency (RF) input signal. The mean square power detector also includes a plurality of mean square detectors coupled to the gain or attenuation circuit. Each of the mean square detectors receives a different one of the plurality of amplified or attenuated versions of the RF input signal. Each of the plurality of mean square detectors generates an output signal representative of the mean square power of the RF input signal for a different input signal level range. A summing element is coupled to the plurality of mean square detectors for combining the output signals of the plurality of mean square detectors to generate a signal representative of the mean square or root mean square of the RF input signal. | 06-05-2014 |
| 20140239941 | SYSTEM FOR MEASURING ELECTRIC POWER, TRANSFORMER SUBSTATION COMPRISING ONE SUCH SYSTEM AND METHOD FOR MEASURING ELECTRIC POWER WITH SUCH A SYSTEM - A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values. | 08-28-2014 |
| 20140253102 | CURRENT MEASUREMENT - The present invention relates to current measurement apparatus | 09-11-2014 |
| 20140266155 | DIGITAL MULTI-METER - A multi-meter including a current input, a common input, a display, a first current measurement circuit, a second current measurement circuit, and a controller. The controller includes a first input and a second input. The controller operable to receive a first voltage from the first current measurement circuit at the first input, receive a second voltage from the second current measurement circuit at the second input, determine a value for a current being measured based on the first voltage if the first voltage is below a predetermined threshold, determine a value for a current being measured based on the second voltage if the first voltage is above the predetermined threshold, generate an output signal related to the determined value for the current, and provide the output signal to the display. | 09-18-2014 |
| 20140333294 | METHOD FOR DETERMINING A POWER CONSUMPTION, SUPERVISION SYSTEM AND ELECTRIC INSTALLATION COMPRISING APPLICATION THEREOF - To determine a consumption in a group of branches of individual distribution of electrical energy, a method includes: a) detecting a change in electrical consumption in the branches, b) reading information relating to an electric current in a specific branch, then c) using the information, establishing an indication according to which the change took place in the specific branch, then d) determining, using measurements taken of an overall power supply of the group of branches before the change and measurements taken of the overall power supply after the change, in addition to the indication, an individual energy consumption of the specific branch. | 11-13-2014 |
| 20140354266 | CURRENT MEASUREMENT - Current measurement apparatus comprises a measurement arrangement and a signal source. The measurement arrangement is configured to measure a current signal drawn by a load. The signal source is operative to apply a reference input signal to the measurement arrangement whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal. The signal source comprises a current multiplier which defines first and second current paths and is configured such that: the first path carries a multiplier input current signal; the second path carries a multiplier output current signal which determines the reference input signal and which corresponds to the multiplier input current signal multiplied by a multiplier value determined by the current multiplier; and the multiplier input current signal and the multiplier output current signal are carried on their respective paths in a same direction relative to a power supply voltage. Power drawn through the second path as divided by the multiplier value is less than the power drawn through the first path. | 12-04-2014 |
| 20140375305 | MEASUREMENT MODULE, ELECTRONIC APPARATUS, POWER SUPPLY TAP, POWER SUPPLY UNIT, AND BUILT-IN MEASUREMENT MODULE - A measurement module includes a pair of input terminals, a pair of current paths connected to the pair of input terminals, and a pair of output terminals. A partition that is a non-magnetic insulating portion partitions an internal space of the measurement module into two spaces. Low-current components such as a magnetic detection element are disposed in a space different from a space in which the pair of current paths are housed. The presence of the partition allows the low-current components and the pair of current paths to be disposed close to one another, thus making it possible to reduce the size of the measurement module. | 12-25-2014 |
| 20150091552 | INTELLIGENT ELECTRONIC DEVICE FOR PROVIDING BROADBAND INTERNET ACCESS - An intelligent electronic device for monitoring and determining an amount of electrical power usage by a consumer, or end user, and for providing broadband Internet access to the consumer. The intelligent electronic device includes at least one sensor coupled to an electric circuit configured for measuring at least one power parameter of the electrical circuit and generating at least one analog signal indicative of the at least one power parameter; at least one digital to analog converter coupled to the at least one sensor configured for receiving the at least one analog signal and converting the at least one analog signal to at least one digital signal; a processor configured for receiving the at least one digital signal and calculating energy consumption in the electrical circuit; and a gateway configured for receiving data transmissions imposed on the electrical circuit and for demodulating the imposed data transmission for providing data communications. | 04-02-2015 |
| 20160377661 | METHOD FOR DETERMINING DEVIATIONS BETWEEN ACTUAL MEASURED CURRENT VALUES AND SETPOINT CURRENT VALUES IN A PLURALITY OF PARALLEL-CONNECTED CURRENT-REGULATED CIRCUIT PATHS - A method determines deviations between actual measured current values and setpoint current values in a number n (n≧2) of parallel-connected current-regulated circuit paths for the connection of a load with an energy source. A measurement of the total actual current value flowing from the energy source to the load is effected by a precision current measuring device with a low accuracy tolerance, and the measurement of partial currents in the circuit paths is effected by standard current measuring devices with a greater accuracy tolerance, in relation to the precision current measuring device. By an adjustment of the partial currents in the circuit paths, while maintaining a constant total current, values are obtained for a n-dimensional equation system corresponding to the number of circuit paths, the resolution of which, in the knowledge of the accurate total actual current, gives the deviations in the actual values of the partial currents. | 12-29-2016 |
| 20090045803 | System and Method for Premises Power Parameter and Power-Factor Reporting and Management - System and methods in which endpoint control devices, such as, for example, switches and wall sockets, are arranged to monitor the power used by the controlled load as well as the power-factor of the load. In one embodiment, the monitored power and power-factor of a controlled device is fed back to a central point within the premises and then sent on to a more global monitoring point. In one embodiment, the endpoint device can send power parameter data to another location and receive instructions as to maximum allowable loads for a given power parameter or power-factor. | 02-19-2009 |
| 324141000 | Voltamperes (real or reactive) | 2 |
| 20080218155 | METHOD FOR STABLING VOLTAGE, PULSE FREQUENCY MODULATING CIRCUIT AND POWER SUPPLY USING THE SAME - A method for stabling a voltage, a pulse frequency modulating circuit and a power supply using the same are provided. The method includes the following steps. First, a comparing signal is provided. Then, set the comparing signal to be a first logic state when the voltage to be stabilized is lower than a preset voltage. Next provide a pulse signal when the comparing signal is set in the first logic state. Afterwards, adjust the enable time of the pulse signal based on the number of times of logic state changing of the comparing signal within a preset period and, adjust the voltage according to the enable time of the pulse signal. | 09-11-2008 |
| 20110089934 | SELECTABLE DELTA OR WYE VOLTAGE CONFIGURATION FOR POWER MEASUREMENT - Apparatus and methods for providing a voltage signal indicative of the voltage being supplied by each phase of a multiphase voltage being supplied to a load. For each phase, a phase to neutral voltage is produced by providing a virtual ground. For each phase, a phase to phase voltage is produced by determining a difference between a pair of phase to neutral voltages. Either the phase to neutral voltages or the phase to phase voltages for each phase are output depending on the configuration of the multiphase voltage being supplied to the load. | 04-21-2011 |
| 324142000 | Watts | 25 |
| 20090121705 | Poly Phase Solid State Watt Hour Meters - An electronic energy meter includes a first sigma delta modulator having an electrically isolated digital data output. A power supply stage coupled to a first electrical line provides a supply voltage to the first sigma delta modulator. A shunt device is also coupled to the first electrical line. The first sigma delta modulator is coupled via an input to the shunt device for measuring a current through the first electrical line. The electrically isolated digital output is isolated by a capacitive isolation barrier. | 05-14-2009 |
| 20090134863 | ELECTRICITY METER - An electricity meter capable of minimizing a risk of data destruction in case of lightning or surge that involves improperly high voltage is provided. The electricity meter includes a measurement part, an operation part, and an insulation part. The measurement part includes a detection unit to detect electricity consumption of an objective system and a transmission unit to wirelessly transmit data representative of the detected electricity consumption. The operation part includes a reception unit to receive the wirelessly transmitted data and an operation unit to process the received data into data representative of electric energy consumed by the objective system. The insulation part electrically insulates the measurement part and operation part from each other. | 05-28-2009 |
| 20090184705 | Magnetic Core for Current Transformer, Current Transformer, and Watt-Hour Meter - A magnetic core for a current transformer, and a current transformer and a watt hour meter used thereof, which is preferred the detection of a alternate current with a large asymmetrical waveform and a alternate current which a direct current is superimposed are realized. A magnetic core for a current transformer comprising the composition represented by the general formula: Fe | 07-23-2009 |
| 20090212764 | TEST PULSES FOR ENABLING REVENUE TESTABLE PANEL METERS - A panel meter including an energy test pulse device that enables the panel meter to be used for revenue applications and eliminates the need for two separate meters, one for panel indication, and the other for energy and revenue applications. The electrical panel meter including at least one sensor configured for measuring an electrical parameter; at least one analog-to-digital converter coupled to the at least one sensor for converting the measured electrical parameter to a digital signal; a display for continuously displaying at least one electrical parameter; a processor configured to receive the digital signal and calculate an amount of energy consumed; and a test pulse circuit configured to receive the calculated amount and generate a plurality of pulses equal to the calculated amount, wherein each of the plurality of pulses is equal to a predetermined amount of energy. | 08-27-2009 |
| 20090284251 | MODULAR METER CONFIGURATION AND METHODOLOGY - A modular electricity meter configuration and corresponding methodology permits use of certain common components in combination with either a variety of mechanical displays or electronic displays. In electricity meter arrangements making use of printed circuit board or solid state technology, at least two separate electronics boards may be provided. One may constitute a standard board for basic metrology functions while the other may comprise selected implementation of various higher level functions for creating a custom design electricity meter to meet customer requirements. Different customers may be provided with differently outfitted meters by corresponding customization of the higher level function board. A unitary power supply may be provided for both boards through a fixed connector. A common baseplate includes a circuitry link through a nonremovable plug or clip for alternatively providing a tamper proof embodiment or one with exposed terminals for permitting customer testing. Physical stability and strength is provided by using tapered mounting posts and integrated snap fit arrangements without requiring any screws for assembly. A light pipe provides external output through an innercover to indicate correct meter operation. Meter data and other metered information may be output through different configurations optionally involving hardwired output, RF links, pulse outputs, and telephone connections via modem or wireless. | 11-19-2009 |
| 20090295371 | ACTUATOR/WEDGE IMPROVEMENTS TO EMBEDDED METER SWITCH - Disclosed is a wedge shaped actuator device configured to provide separation of spring supported electrical contacts in an electrical switch. The wedge is configured with dual contour sides to maximize transfer of energy from a drive solenoid to the contact carrying springs. Portions of the wedge are relieved to allow for uninhibited movement of the wedge over side surfaces of the contact carrying springs to avoid digging in of any rough materials from the side edges of the spring as may be occasioned due to stamping techniques used to form the springs. | 12-03-2009 |
| 20090302831 | METHOD FOR ENABLING MONITORING OF POWER CONSUMPTION - Power consumption at a site is monitored. An electrical load is connected to a power source by an electrical conductor. A fuel-less energy producing device is electrically connected to a junction along the electrical conductor. A current sensor is electromagnetically coupled to the electrical conductor at a sensing position between the power source and the junction to create a current sensor signal. Sensed current and voltage signals are produced from the current sensor signal. A sensed phase relationship between the sensed signals is determined and compared to a baseline phase relationship to determine the direction of current flow through the conductor. A power source signal, based on the current flowing through the conductor at the sensing position, is created. With some examples a Rogowski type differential current sensor is used. In some examples a single current sensor is used. | 12-10-2009 |
| 20090322314 | HIGH DENSITY METERING SYSTEM - A method of monitoring the electrical power in multiple branch circuits of an AC electrical power distribution system comprises monitoring at least one voltage common to said multiple branch circuits using a main meter unit, monitoring currents of the multiple branch circuits using multiple current cards that receive a plurality of current inputs from current transducers in the multiple branch circuits, sampling the monitored voltage in the main meter unit and the monitored currents in the current cards multiple times in each cycle of the AC power signal, determining the magnitudes and angles of spectral components of the sampled current in the current cards, sending data representing the magnitudes and angles of at least selected spectral components from the current cards to the main meter unit, and storing the voltage samples and the magnitudes and angles of at least the selected spectral components in the main meter unit. | 12-31-2009 |
| 20100109650 | APPARATUS FOR ELECTRONICALLY MEASURING OR DISTRIBUTING ELECTRICAL ENERGY - An integral electronic revenue meter system diagnostics package including a microprocessor, storage memory, preselect series of system diagnostic tests, and recording any results which exceed predefined programmable thresholds, and display means for displaying error and/or diagnostic messages identifying selected diagnostic data and/or errors discovered in the meter tests during a predefined period is included as part of an electricity revenue meter of the type used for collecting metering data for a utility which uses such data for billing purposes. The system automatically senses the type of electrical service in which the revenue meter is installed when the revenue meter is installed in a socket at the customer's premises. | 05-06-2010 |
| 20100201348 | MODULAR ENERGY METER - A modular energy meter, containing at least a power line access module, the power line access module containing at least a phase line access portion having an input end and an output end, and a zero line access portion having an input end and an output end, and at least one modular energy metering device each having a phase line input end, a zero line input end, and a phase line output end. The input end of the phase line access portion is connected to a phase line of a power line. The input end of the zero line access portion is connected to a zero line of the power line. The modular energy metering device operates to measure energy values output from a phase line output end and a zero line output end of the power line. The output end of the phase line access portion is connected to the phase line input end of the modular energy metering device. The phase line output end of the modular energy metering device is connected to a phase line output line. The output end of the zero line access portion is connected to a zero line output line. The number of the zero line output lines and the phase line output lines corresponds to that of the modular energy metering devices. | 08-12-2010 |
| 20100283453 | Methods for Calibrating an Electric Meter - An energy measurement by an electric meter is determined by a method, comprising the steps of: determining a normalization constant (K) representative of a unit of measured energy for each pulse generated by said electric meter; receiving a pulse by said electric meter; and generating an energy measurement by applying said normalization constant to said received pulse. | 11-11-2010 |
| 20110012590 | CURRENT DETECTOR AND WATTMETER USING THE SAME - A current detector includes a plate conductor ( | 01-20-2011 |
| 20110068774 | KILOWATT-HOUR METER WITH REMOTE ENVIRONMENT DETECT AND CONTROL - A kilowatt-hour meter with remote environment detect and control is provided. Besides calculating and display a quantity of used electricity through the kilowatt-hour meter, the kilowatt-hour meter with remote environment detect and control can also perform remote data collection and environment detect and control through an Ethernet. A plurality of the kilowatt-hour meters with remote environment detect and control can be connected through network connection, so as to detect and control situations related to safety of using electricity such as over current warning, environment state, access control, etc., for prompt processing. | 03-24-2011 |
| 20110273164 | Delivered power detection for power amplifiers and related systems and methods - Delivered power detection for power amplifiers (PAs) and related systems and methods are disclosed. The disclosed embodiments and techniques provide a delivered power indication for systems using PAs, including such systems for cellular telephone applications, allow power detection circuitry to be integrated on the same integrated circuit die as the PA, and provide power detection circuitry with output signals at baseband frequencies. In one embodiment, the delivered power detection circuitry includes output voltage level detection circuitry and output current level detection circuitry that provide current signals to multiplier circuitry, which in turn provides current output signals proportional to the actual delivered power to the load as represented by the incident power to the load reduced by the reflected power. | 11-10-2011 |
| 20120126793 | POLYPHASE METER WITH FULL SERVICE DISCONNECT SWITCH - A switch sensor apparatus, an electrical meter, and a method of manufacturing an electrical meter are disclosed herein. A polyphase electrical meter incorporates a number of switch sensor apparatuses that each have a current sensor and a relay arranged relatively perpendicularly to each other and electrically connected via an electrical conductor. The switch sensor apparatuses may be arranged in a compact configuration. In this way, a polyphase meter can provide full service disconnect functionality while remaining sufficiently compact to fit in an ANSI standard housing. | 05-24-2012 |
| 20120161752 | Tracking Power Outages Utilizing an Electronic Device - An electronic device records a first time and then a second time, each when connected to an AC power source. After the electronic device records the first and second times, the electronic device calculates a difference by subtracting the second time from the first and determines a power outage occurred by verifying that the difference is greater than a threshold. After determining that a power outage occurred, the electronic device may display one or more messages regarding the determined power outage either automatically or in response to user input received from the user input device. In some implementations, the first and second time may be part of a sequence of times that the electronic device regularly records at fixed interval of electronic device operation. In other implementations, the first time may be regularly recorded and the second time may be recorded upon the occurrence of an event. | 06-28-2012 |
| 20120262153 | APPARATUS AND METHOD FOR MEASURING ELECTRICAL PARAMETERS OF CIRCUIT - An apparatus for measuring an electrical parameter of a circuit includes a measuring unit, a plurality of connection terminals and a selection switch. The measuring unit measures the electrical parameter. The selection switch selectively causes a conduction between the selection switch and at least one of the plurality of connection terminals. | 10-18-2012 |
| 20130002237 | Mechanism for Monitoring Print System Energy Usage - A printer is disclosed. The printer includes one or more sub-components each having a meter to track energy usage at the sub-component during an event and a controller to receive energy usage data accrued at one or more of the meters during the event. | 01-03-2013 |
| 20130021021 | UTILITY METER WITH CAPACITOR CHARGING CIRCUIT - A capacitor charging circuit is provided in a utility meter. The utility meter includes a measurement circuit configured to provide consumption data, a memory configured to store the consumption data from the measurement circuit, and a communications device configured to transmit the consumption data to a remote location. The utility meter also includes a power supply configured to supply an unregulated DC voltage and a regulated voltage within the utility meter. The regulated DC voltage is output from a voltage regulator and is provided to the measurement circuit. The unregulated DC voltage is supplied to the communications device. The capacitor charging circuit is configured to charge a capacitor with the unregulated DC voltage when the regulated DC voltage is provided to the charging circuit from the voltage regulator. The capacitor charging circuit may be a supercapacitor charging circuit. | 01-24-2013 |
| 20130176016 | SIGNAL CONVERTING APPARATUS OF POWER METERING SYSTEM, POWER METERING SYSTEM AND METHOD FOR SIGNAL-CONVERTING IN POWER METERING SYSTEM - The present invention relates to a signal converting apparatus of a power metering system, a power metering system and a method for signal-converting in a power metering system. In accordance with one embodiment of the present invention, there is proposed to a signal converting apparatus of a power metering system including a frequency shift unit for shifting a frequency(s) of at least one signal of sensed current and voltage signals by a shift frequency(s) so that the current and voltage signals have different frequency bandwidths, a signal coupling unit for coupling the current and voltage signals having different frequency bandwidths into one signal and an analog-digital convert unit for converting an analog signal coupled as said one signal into a digital signal(s). And also, a power metering system including the same and a method for converting a signal of the power metering system are proposed. | 07-11-2013 |
| 20130335062 | Power Monitoring System and Method - A system for monitoring power in accordance with the present disclosure has a first transformer monitoring device that interfaces with a first electrical conductor electrically connected to a transformer at a first location on a power grid. The first transformer measures a first current through the first electrical conductor and a first voltage associated with the first electrical conductor. In addition, the system has a second transformer monitoring device that interfaces with a second electrical conductor electrically connected to the transformer. The second transformer measures a second current through the second electrical conductor and a second voltage associated with the second electrical conductor. Further, the system has logic configured to calculate values indicative of power corresponding to the transformer based upon the first current and the first voltage and the second current and the second voltage. | 12-19-2013 |
| 20140015517 | POWER DETECTING APPARATUS - A power detecting apparatus detects electrical power consumed by a load by multiplication of voltage information detected by a voltage detecting unit and current information detected by a current detecting unit. The power detecting apparatus includes: a switching unit including a single pole double throw relay that switches between a first circuit, in which a current flows through both of the voltage detecting unit and the current detecting unit, and a second circuit, in which a flow of a current to the voltage detecting unit is interrupted and a current flows through a bypass path to bypass the current detecting unit; and a control unit that performs control to switch to the first circuit when the power detection is to be performed, and control to switch to the second circuit when the power detection is not to be performed. | 01-16-2014 |
| 20140021940 | ELECTRIC POWER MONITORING DEVICE AND AN APPARATUS USING ALTERNATING CURRENT POWER HAVING THE SAME - The present invention relates to an electric power monitoring device, and particularly to an electric power monitoring device for monitoring a quality of alternating current power. According to an embodiment of the present invention, an electric power monitoring device is provided with a first connection portion, a second connection portion and a cable that connects the first connection portion to the second connection portion and comprises a measuring unit for measuring alternating current power quality; a processing unit which is connected to the measuring unit to convert the measured power quality to data; and a display which is connected to the processing unit to display the data on a screen. The electric power monitoring device is used for an apparatus having an alternating current power input unit. | 01-23-2014 |
| 20150323573 | METHOD FOR MONITORING THE POWER CONSUMPTION OF AN ELECTRICAL CONSUMER - A method for monitoring the power consumption of an electrical consumer that has a capacitive load and the controllable circuit element and the consumer are connected in series. The amplitude of the current flowing through the consumer, the voltage dropping across the consumer, and the change over time of the voltage dropping across the consumer are sensed. An allowed operating current amplitude is calculated from the voltage dropping across the consumer and from a predefined power. A charging current amplitude of the capacitive load is calculated from the change over time of the voltage dropping across the consumer. An allowed instantaneous current amplitude is calculated. The allowed instantaneous current amplitude is compared with the amplitude of the current flowing through the consumer and the electrical resistance of the circuit element is increased if the amplitude of the current flowing through the consumer is greater than the allowed instantaneous current amplitude. | 11-12-2015 |
| 20150331024 | POWER METER WITH CURRENT AND PHASE SENSOR - According to one aspect, embodiments of the invention provide a power meter comprising a voltage sensor, at least one current and phase sensor circuit, and a central metering unit, wherein the voltage sensor is further configured to measure a voltage on an input line and transmit a signal related to the voltage to the central metering unit, wherein the at least one current and phase sensor circuit is further configured to measure a current and a voltage phase shift of a feeder line, and to transmit a signal related to at least one of the current of the feeder line and the voltage phase shift of the feeder line to the central metering unit, and wherein the central metering unit is configured to calculate power provided to a load via the feeder line based on the signal transmitted from the at least one current and phase sensor circuit. | 11-19-2015 |
| 324140000 | Ratio | 1 |
| 20080258711 | Power gauge for accurate measurement of load current - According to one exemplary embodiment, a power gauge for accurately measuring current consumed by a load coupled to a power source includes a current sense resistor having a first terminal coupled to the power source and a second terminal coupled to the load. The power gauge further includes a first integrator configured to integrate a voltage at the first terminal of the current sense resistor during a time period and to output a first integrated voltage. The power gauge further includes a second integrator configured to integrate a voltage at the second terminal of the current sense resistor during the time period and to output a second integrated voltage. A difference between the first and second integrated voltages can be used to accurately determine the current consumed by the load during the time period. | 10-23-2008 |
| 20090045804 | Cognitive electric power meter - An electric power meter includes an embedded decomposition module that is configured to decompose a power meter signal into constituent loads to segregate and identify energy consumption associated with each individual energy consumption device within a plurality of energy consumption devices coupled to the power meter. | 02-19-2009 |
| 20090295370 | Branch meter with strip adjustment - A power monitoring system. | 12-03-2009 |
| 20090309575 | MULTI-OUTPUT DETERMINATION CIRCUIT - An embodiment of the present invention provides a multi-output determination circuit that determines whether or not any one input voltage of a plurality of input voltages is equal to or higher than an upper-limit voltage value. This multi-output determination circuit includes a first diode-OR, upper-limit reference voltage generation means, and a first comparator. The first diode-OR includes a plurality of first diodes whose anodes are each connected to a respective one of the plurality of input voltages and whose cathodes are connected in common. The upper-limit reference voltage generation means has a first resistor, the first diode, and a second resistor that are connected in series between first and second power supply potentials, and generates an upper-limit reference voltage based on the voltage of the cathode of the first diode. The first comparator compares the output voltage of the first diode-OR with the upper-limit reference voltage. | 12-17-2009 |
| 20100072982 | TEST EQUIPMENT AND TEST SYSTEM USING THE SAME - A test equipment to test power over Ethernet (PoE) function of an Ethernet device comprises a first connector, a second connector, a data signal transmission circuit, a first polarity determination circuit, a second polarity determination circuit and a notification circuit. The first connector receives and transmits data signals and power signals transmitted by the Ethernet device. The data signal transmission circuit transmits the data signals to the second connector and outputs the power signals. The first and second polarity determination circuits receive and output the power signals to the notification circuit. The notification circuit receives the power signals and consequently generates a notice to indicate the PoE function of the Ethernet device is normal. | 03-25-2010 |
| 20100085037 | System and Method for Measuring Reactive Power - A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees. | 04-08-2010 |
| 20100117626 | ANALOG AND DIGITAL INDICATING METER - An analog and digital indicating electronic meter provides a digital readout of a measured value, and a pointer indication of the measured value on a selectable analog scale configured to match the measured value. | 05-13-2010 |
| 20100148758 | SYSTEMS AND METHODS FOR ON-CHIP POWER MANAGEMENT - A power measurement system is disclosed for use on an integrated circuit for measuring the power used by the integrated circuit. The power measurement system includes a low-dropout voltage regulator and a signal input unit. The low-dropout voltage regulator includes a power transistor that couples a supply voltage to a circuit to be powered by the supply voltage, and the low-dropout voltage regulator provides an internal adjustment signal (V | 06-17-2010 |
| 20100171486 | EFFICIENT RESISTIVITY MEASUREMENT METHOD BY MULTI-POINT SIMULTANEOUS CURRENT TRANSMISSION SYSTEM USING PSEUDO-NOISE SIGNAL WAVEFORM - To solve problems with conventional art, the present invention aims to significantly reduce measurement time for electrical resistivity profiling and logging without degrading the quality of the measurement by simultaneously transmitting a current from multiple points to underground and carrying out mathematic processing to calculate a potential obtained when a current is transmitted independently from any transmission point, based on observed response potential waveforms. At simultaneously transmission from multiple points, such current waveforms as zero the covariance thereof are selected. Then, a possible response obtained independently at transmission point can be determined by dividing the covariance of the observed potential waveform and the current waveform by the variance of the current waveform. As the waveform zeroing the covariance, an M-sequence code with zero added to the end thereof is applied. | 07-08-2010 |
| 20100207604 | Branch current monitor with calibration - A meter for measuring electric power consumed by a plurality of branch circuits includes interchangeable current transformers including respective transformer memories for storage of transformer characterization data and enables self-discovery of a phase shift induced by respective current transformers and the phase of current conducted by each branch circuit. | 08-19-2010 |
| 20100207605 | Power supply control apparatus including overcurrent detection circuit - Provided is a power supply control apparatus including an overcurrent detection circuit with enhanced overcurrent detection accuracy. A power supply control apparatus according to the present invention includes: an output transistor Q | 08-19-2010 |
| 20100301837 | POWER MEASURING SYSTEM, MEASURING APPARATUS, LOAD TERMINAL, AND DEVICE CONTROL SYSTEM - A power measuring system, a measuring apparatus, a load terminal, and a device control system are provided, which need no special installation work to be made by any skillful professionals such as persons qualified for electrical work. A voltage sensor detects a voltage waveform of a power line in a noncontact manner, and a current sensor acquires a current waveform of the power line in a noncontact manner. A measuring portion of a load terminal operates a contact means to connect the power line and a voltage measuring terminal to measure a current flowing from the power line to a load and to calculate a voltage value from the measured current value and the load. The measuring portion of the load terminal transmits, in response to a request from a measuring apparatus, the measured current value and the calculated voltage value to the measuring apparatus via a communication means. A control portion of the measuring apparatus receives the current value and the voltage value from the load terminal via a communication means. The control portion calculates a power value based on the received current value and voltage value, as well as on the voltage waveform acquired from the voltage sensor and the current waveform acquired from the current sensor. | 12-02-2010 |
| 20110006756 | POWER MEASUREMENT SYSTEM, METHOD AND/OR UNITS - The invention provides a system ( | 01-13-2011 |
| 20110043191 | Phoenix probe X voltage tester - The present invention a cordless power tester that is capable of reading multiple input and output voltage. This tool will provide a mechanic or electrician with all the information that is needed when searching for a short circuit, or other circuit interruption in an electrical circuit. When such a short is located, indicated where the problem is located. The Phoenix Probe X is easy to use and easy to read. | 02-24-2011 |
| 20110115473 | MULTI-ELECTRODE MEASURING SYSTEM - The invention provides a multi-electrode measuring system including a front end device which is a sensing device including a multi-electrode sensing device having a plurality of electrodes; a multi-channel fixture coupled to the multi-electrode sensing device; and a reference electrode. A back-end device as a virtual instrumentation is an electronic device including a read out circuit device coupled to the multi-channel fixture and the reference electrode for receiving each original signal from each electrode of the multi-electrode sensing device and the reference electrode determining a sample solution; a data acquisition device coupled to the read out circuit device for digitizing each original signal to form a digital signal and for array sampling; and a signal processing device coupled to the data acquisition device for processing each signal. | 05-19-2011 |
| 20110115474 | DETECTION SYSTEM, SEMICONDUCTOR DEVICE, AND DATA PROCESSING DEVICE - To provide an LSI having a low power mode that can prevent an apparatus on which the LSI is mounted from resulting in performance degradation, etc. even when its electric power is not reduced in the low power mode. Devised is a circuit that instructs an operation mode and detects whether the LSI operates as specified by the mode, and that measures a current at the time of the low power mode in a pseudo manner and, if despite having shifted to the low power mode, the current is not reduced actually, issues an alarm signal. | 05-19-2011 |
| 20110115475 | ELECTRONIC DEVICE AND APPARATUS FOR IDENTIFYING ELECTRONIC PRODUCT - An apparatus for identifying an electronic product and an electronic device are disclosed. The apparatus includes: a detection voltage outputting unit, configured to receive a reference voltage and output a detection voltage; a detection voltage obtaining unit, connected to the detection voltage outputting unit and configured to obtain the value of the detection voltage; a mapping storing unit, configured to store a mapping between the value of the detection voltage and a product identifier; and a product identifier obtaining unit, configured to obtain the product identifier corresponding to the value of the detection voltage from the mapping storing unit according to the value of the detection voltage obtained by the detection voltage obtaining unit. With the apparatus for identifying an electronic product, the number of occupied chip detection ports is reduced, and the use area of a printed circuit board (PCB) is reduced. | 05-19-2011 |
| 20110193550 | LOGARITHMIC MEAN-SQUARE POWER DETECTOR - A mean square power detector in accordance with one or more embodiments includes a gain or attenuation circuit comprising a plurality of gain or attenuation elements arranged for generating a plurality of amplified or attenuated versions of a radio frequency (RF) input signal. The mean square power detector also includes a plurality of mean square detectors coupled to the gain or attenuation circuit. Each of the mean square detectors receives a different one of the plurality of amplified or attenuated versions of the RF input signal. Each of the plurality of mean square detectors generates an output signal representative of the mean square power of the RF input signal for a different input signal level range. A summing element is coupled to the plurality of mean square detectors for combining the output signals of the plurality of mean square detectors to generate a signal representative of the mean square or root mean square of the RF input signal. | 08-11-2011 |
| 20110241655 | BIDIRECTIONAL 3 PHASE POWER METER FOR COMPENSATING REVERSE LOAD FLOW AND METHOD FOR METERING THEREBY - The present invention relates to a bidirectional 3 phase power meter for compensating reverse load flow and a method for metering thereby. According to the present invention, there is provided a bidirectional 3 phase power meter for compensating reverse load flow which allows calculating power receiving and power transmitting apparent power and power factor using the detected voltage/current and a method for metering thereby. | 10-06-2011 |
| 20110304321 | Electric power metering device and method - The electric power metering device comprises a pulse meter to provide an electric pulse or a closing of an electric circuit at each predefined quantity of electric power. A communication module is connected to said pulse meter to send electric power and/or consumed electric power information. Two inputs of the communication module receive the connection with the pulse meter. Said communication module comprises discrimination means connected to the inputs to differentiate power pulse information and status information of an electric apparatus connected to said inputs. The electric power metering method comprises a discrimination step to differentiate power pulse information and status information of an electric apparatus connected to said inputs of the communication module | 12-15-2011 |
| 20120056614 | Multi-State Indicator - A multi-state indicator comprises a voltage generator, for generating M voltages, with M being an integer larger than 3; and a multi-state detector, coupled to the voltage generator, for receiving M voltages, having a voltage input end for receiving an input voltage to generate an indication signal whereby the indication signal is capable of indicating the input voltage with reference to the M voltages. Unlike the prior art, a multi-state detector having level shifters according to the present invention alleviates problems of static currents and over-large areas for circuits implementing typical differential comparators. | 03-08-2012 |
| 20120062212 | Zero Bias Power Detector - A zero bias power detector comprising a zero bias diode and an output boost circuit is provided. The output boost circuit comprises a zero bias transistor. The zero bias diode is not biased but outputs a rectifying signal according to a wireless signal. The zero bias transistor, not biased but coupled to the zero bias diode, is used for enhancing the rectifying signal. | 03-15-2012 |
| 20120086436 | Determining Components of an Electric Service - Components of an electric service may be identified by measuring voltage signals relating to the connection of an electrical energy meter connected to the electric service. The voltage signals that may be measured include line to neutral voltages and line to line voltages. The values of the measured voltage signals may be compared to reference information comprising tabulated values that may be tabulated as ratios of nominal service voltages associated with different service types. | 04-12-2012 |
| 20120126792 | STRUCTURES AND METHODS FOR RF DE-EMBEDDING - Electrical structures, methods, and computer program products for radio frequency (RF) de-embedding are provided. A structure includes a first test device, a first through structure corresponding to the first test device, and a first open structure corresponding to the first test device. The structure also includes a second test device having at least one different physical dimension than the first test device but otherwise identical to the first test device, a second through structure corresponding to the second test device, and a second open structure corresponding to the second test device. A method includes determining a first electrical parameter of the first test device in a first DUT structure and a second electrical parameter of the second test device in a second DUT structure based on measured electrical parameters of the first and the second DUT structures, through structures, and open structures. | 05-24-2012 |
| 20120146624 | Voltage Reference Selector For Use In Conjunction With A Multi-Meter In Taking Electrical Measurements From An Electrical Control Panel - A voltage reference selector, used in conjunction with a multi-meter, allows user selection of a reference voltage to be used by the multi-meter from three different reference voltages of an electrical control panel when taking electrical measurements from the electrical control panel via the multi-meter. A portable voltage reference selector can be carried with and electrically connected to a multi-meter and be temporarily electrically connected to voltage reference points of an electrical control panel for taking electrical measurements from the electrical control panel with the multi-meter. In this form, a test lead from the multi-meter is used to obtain electrical measurements from the electrical control panel. A permanent voltage reference selector is permanently connected to voltage reference points of an electrical control panel and is electrically connectable to a multi-meter for taking electrical measurements from the electrical control panel with the multi-meter. In this form, a test lead of the voltage reference selector is used to obtain electrical measurements from the electrical control panel. | 06-14-2012 |
| 20120242327 | FULLY DIFFERENTIAL SIGNAL PEAK DETECTION ARCHITECTURE - A signal detector includes a summation unit connected to offset first and second input signals representing a differential input signal into two offset pairs of first and second signals. The signal detector also includes a detection unit connected to select the first signal from one of the offset pairs of first and second signals and the second signal from the other of the offset pairs in an overlap portion of the first and second signals to form a complementary pair of overlap signals and provide a differentially peak-detected output signal from the complementary pair of overlap signals. Additionally, the signal detector includes a comparator connected to provide a detection output signal corresponding to the differentially peak-detected output signal and a reference signal. A method of operating a signal detector is also included. | 09-27-2012 |
| 20130021020 | POWER SOURCE MONITORING DEVICE, LENS BARREL, CAMERA, AND POWER SOURCE MONITORING METHOD - There are provided a first voltage applied part connected to a first voltage supply part and applied with a first voltage by the first voltage supply part on the basis of a first portion, a second voltage applied part connected to a second voltage supply part and applied with a second voltage by the second voltage supply part on the basis of a second portion, and a voltage monitoring part connected to the second portion and the second voltage applied part, operating when the second voltage is applied, and detecting the first voltage on the basis of the first portion. | 01-24-2013 |
| 20130027025 | METHOD AND APPARATUS FOR MEASURING AC VOLTAGES - A method and apparatus for measuring an AC voltage. In one embodiment, the apparatus comprises an AC voltage monitor coupled to a plurality of AC lines for (i) generating a first measurement based on an AC voltage across a first resistor, (ii) generating a second measurement based on an AC line voltage of an AC line of the plurality of AC lines, and (iii) generating a serial data stream frame based on the first and the second measurements. | 01-31-2013 |
| 20130063130 | IMAGE FORMING SYSTEM, POWER CALCULATION METHOD, AND POWER CALCULATING APPARATUS - According to an embodiment, an image forming system includes: an image forming apparatus; a peripheral device; and a first control unit. The image forming apparatus includes a first voltage detecting unit that detects voltage of a first power source supplied by an external power source, and outputs as first voltage value; and a first current detecting unit that detects current of the first power source, and outputs as first current value. The peripheral device includes a second voltage detecting unit that detects voltage of a second power source supplied by an external power source, and outputs as second voltage value; and a second current detecting unit that detects current of the second power source and outputs as second current value. The first control unit calculates total power value of the image forming system based on: the first voltage value; first current value; second voltage value; and second current value. | 03-14-2013 |
| 20130106402 | Power Source Arrangement and Method of Diagnosing a Power Source Arrangement | 05-02-2013 |
| 20140117975 | MULTIPLEXER FOR VOLTAGE MEASUREMENT AND VOLTAGE MEASURING UNIT INCLUDING THE SAME - A multiplexer for voltage measurement includes: a first switch disposed on a first channel extending between at least one high-voltage input terminal and an output terminal; a plurality of second switches respectively disposed on second channels each extending between each of input terminals other than the high-voltage input terminal and the output terminal; and a third switch disposed between a group of the plurality of second switches and an output terminal side end of the first switch. Each of the first switch and the third switch is configured to operate even by a voltage higher than a power supply voltage. | 05-01-2014 |
| 20140125322 | NANOGAP DEVICE AND METHOD OF PROCESSING SIGNAL FROM THE NANOGAP DEVICE - A nanogap device which may include a first insulation layer having a nanopore formed therein, a first channel layer which may be on the first insulation layer, a first source electrode and a first drain electrode which may be respectively in contact with both ends of the first channel layer, a second insulation layer which may cover the first channel layer, the first source electrode, and the first drain electrode, and a first nanogap electrode which may be on the second insulation layer and may be divided into two parts with a nanogap, which faces the nanopore, interposed between the two parts. | 05-08-2014 |
| 20140152295 | LOGARITHMIC MEAN-SQUARE POWER DETECTOR - A mean square power detector in accordance with one or more embodiments includes a gain or attenuation circuit comprising a plurality of gain or attenuation elements arranged for generating a plurality of amplified or attenuated versions of a radio frequency (RF) input signal. The mean square power detector also includes a plurality of mean square detectors coupled to the gain or attenuation circuit. Each of the mean square detectors receives a different one of the plurality of amplified or attenuated versions of the RF input signal. Each of the plurality of mean square detectors generates an output signal representative of the mean square power of the RF input signal for a different input signal level range. A summing element is coupled to the plurality of mean square detectors for combining the output signals of the plurality of mean square detectors to generate a signal representative of the mean square or root mean square of the RF input signal. | 06-05-2014 |
| 20140239941 | SYSTEM FOR MEASURING ELECTRIC POWER, TRANSFORMER SUBSTATION COMPRISING ONE SUCH SYSTEM AND METHOD FOR MEASURING ELECTRIC POWER WITH SUCH A SYSTEM - A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values. | 08-28-2014 |
| 20140253102 | CURRENT MEASUREMENT - The present invention relates to current measurement apparatus | 09-11-2014 |
| 20140266155 | DIGITAL MULTI-METER - A multi-meter including a current input, a common input, a display, a first current measurement circuit, a second current measurement circuit, and a controller. The controller includes a first input and a second input. The controller operable to receive a first voltage from the first current measurement circuit at the first input, receive a second voltage from the second current measurement circuit at the second input, determine a value for a current being measured based on the first voltage if the first voltage is below a predetermined threshold, determine a value for a current being measured based on the second voltage if the first voltage is above the predetermined threshold, generate an output signal related to the determined value for the current, and provide the output signal to the display. | 09-18-2014 |
| 20140333294 | METHOD FOR DETERMINING A POWER CONSUMPTION, SUPERVISION SYSTEM AND ELECTRIC INSTALLATION COMPRISING APPLICATION THEREOF - To determine a consumption in a group of branches of individual distribution of electrical energy, a method includes: a) detecting a change in electrical consumption in the branches, b) reading information relating to an electric current in a specific branch, then c) using the information, establishing an indication according to which the change took place in the specific branch, then d) determining, using measurements taken of an overall power supply of the group of branches before the change and measurements taken of the overall power supply after the change, in addition to the indication, an individual energy consumption of the specific branch. | 11-13-2014 |
| 20140354266 | CURRENT MEASUREMENT - Current measurement apparatus comprises a measurement arrangement and a signal source. The measurement arrangement is configured to measure a current signal drawn by a load. The signal source is operative to apply a reference input signal to the measurement arrangement whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal. The signal source comprises a current multiplier which defines first and second current paths and is configured such that: the first path carries a multiplier input current signal; the second path carries a multiplier output current signal which determines the reference input signal and which corresponds to the multiplier input current signal multiplied by a multiplier value determined by the current multiplier; and the multiplier input current signal and the multiplier output current signal are carried on their respective paths in a same direction relative to a power supply voltage. Power drawn through the second path as divided by the multiplier value is less than the power drawn through the first path. | 12-04-2014 |
| 20140375305 | MEASUREMENT MODULE, ELECTRONIC APPARATUS, POWER SUPPLY TAP, POWER SUPPLY UNIT, AND BUILT-IN MEASUREMENT MODULE - A measurement module includes a pair of input terminals, a pair of current paths connected to the pair of input terminals, and a pair of output terminals. A partition that is a non-magnetic insulating portion partitions an internal space of the measurement module into two spaces. Low-current components such as a magnetic detection element are disposed in a space different from a space in which the pair of current paths are housed. The presence of the partition allows the low-current components and the pair of current paths to be disposed close to one another, thus making it possible to reduce the size of the measurement module. | 12-25-2014 |
| 20150091552 | INTELLIGENT ELECTRONIC DEVICE FOR PROVIDING BROADBAND INTERNET ACCESS - An intelligent electronic device for monitoring and determining an amount of electrical power usage by a consumer, or end user, and for providing broadband Internet access to the consumer. The intelligent electronic device includes at least one sensor coupled to an electric circuit configured for measuring at least one power parameter of the electrical circuit and generating at least one analog signal indicative of the at least one power parameter; at least one digital to analog converter coupled to the at least one sensor configured for receiving the at least one analog signal and converting the at least one analog signal to at least one digital signal; a processor configured for receiving the at least one digital signal and calculating energy consumption in the electrical circuit; and a gateway configured for receiving data transmissions imposed on the electrical circuit and for demodulating the imposed data transmission for providing data communications. | 04-02-2015 |
| 20160377661 | METHOD FOR DETERMINING DEVIATIONS BETWEEN ACTUAL MEASURED CURRENT VALUES AND SETPOINT CURRENT VALUES IN A PLURALITY OF PARALLEL-CONNECTED CURRENT-REGULATED CIRCUIT PATHS - A method determines deviations between actual measured current values and setpoint current values in a number n (n≧2) of parallel-connected current-regulated circuit paths for the connection of a load with an energy source. A measurement of the total actual current value flowing from the energy source to the load is effected by a precision current measuring device with a low accuracy tolerance, and the measurement of partial currents in the circuit paths is effected by standard current measuring devices with a greater accuracy tolerance, in relation to the precision current measuring device. By an adjustment of the partial currents in the circuit paths, while maintaining a constant total current, values are obtained for a n-dimensional equation system corresponding to the number of circuit paths, the resolution of which, in the knowledge of the accurate total actual current, gives the deviations in the actual values of the partial currents. | 12-29-2016 |
| 20090045803 | System and Method for Premises Power Parameter and Power-Factor Reporting and Management - System and methods in which endpoint control devices, such as, for example, switches and wall sockets, are arranged to monitor the power used by the controlled load as well as the power-factor of the load. In one embodiment, the monitored power and power-factor of a controlled device is fed back to a central point within the premises and then sent on to a more global monitoring point. In one embodiment, the endpoint device can send power parameter data to another location and receive instructions as to maximum allowable loads for a given power parameter or power-factor. | 02-19-2009 |
