Class / Patent application number | Description | Number of patent applications / Date published |
324120000 | With voltage or current conversion (e.g., D.C. to A.C., 60 to 1000) | 56 |
20080238406 | Intelligent Electronic Device Having Improved Analog Output Resolution - A method and apparatus provides improved resolution in an analog signal, relative to the resolution of a digital-to-analog converter producing the signal. In one embodiment, a digital electrical power and energy meter varies a digital input to a digital-to-analog converter such that an average of the output of the digital-to-analog converter indicates a value with greater resolution than the instantaneous resolution of the digital-to-analog converter. | 10-02-2008 |
20080284410 | Clamp-on current and voltage module for a power monitoring system - A clamp-on current and voltage module for an electrical power monitoring system that monitors characteristics of power distributed through one or more power conductors includes a current transformer having a core divided into at least two parts so that the core can be installed around a power conductor without cutting the conductor. The transformer produces a current signal corresponding to current passing through the power conductor. A pair of clamping elements fit on opposite sides of the conductor, for gripping the conductor. The transformer core parts and the clamping elements have engaging surfaces that prevent relative movement between the CT enclosure and the power conductor in a direction transverse to the axis of the power conductor. A voltage sensor makes electrical contact with the power conductor and produces a voltage signal corresponding to the voltage on the power conductor. | 11-20-2008 |
20090128131 | Detector - A detector wherein a measuring range can be easily switched without increasing mounting area and manufacturing cost. The detector is provided with an EEPROM ( | 05-21-2009 |
20090140722 | MEASUREMENT SIGNAL PROCESSING - In order to determine amplitudes of measurement signals originating from an AC power supply and to determine the phase shift (ø) between measurement signals more simply, the measurement signals are processed in measurement signal operation devices to form auxiliary signals each having a constant AC amplitude and to obtain first measurement values (v, a, rssi, rssi | 06-04-2009 |
20090237071 | Method for Determining the Type of Connection of at Least Two Electrical Devices and System Comprising Several Electric Devices - The invention relates to a method for determining the type of connection of at least two electric devices ( | 09-24-2009 |
20090243591 | POWER METER HAVING COMPLEX QUADRATURE OUTPUT CURRENT AND VOLTAGE FILTERS - A power meter having complex quadrature output current and voltage filters provides power measurements in high amplitude and frequency variation and/or high jitter environments without requiring high computational overhead. A pair of filters, one for voltage and one for current each have a response determined by complex non-conjugate poles. The response of the filters is such that only the positive or negative half plane of the complex frequency spectrum is passed and provide complex outputs representing the real and imaginary parts of both the current and voltage. At least one indication of a power delivered to a load is computed from the complex current and voltage outputs, which may be the real and/or reactive power. | 10-01-2009 |
20090322312 | Passive Mixer Power Detector Method and Apparatus - The power level of an RF signal is detected using a circuit having relatively low DC offset, high dynamic range, small frequency and temperature dependence and low flicker noise. According to one embodiment, the power detector circuit comprises a chain of amplifiers and a passive mixer. The chain of amplifiers converts the RF input signal to a supply-limited RF square wave signal. The passive mixer passively mixes the supply-limited RF square wave signal with the RF input signal and in response generates a rectified output signal that tracks the amplitude of the RF input signal. | 12-31-2009 |
20100039099 | POWER NOISE DETECTING DEVICE AND POWER NOISE CONTROL DEVICE USING THE SAME - A power noise detecting device includes a plurality of power lines, and a power noise detecting part configured to detect power noise by rectifying voltages of the plurality of power lines and converting the rectified voltages into effective voltages. | 02-18-2010 |
20100066350 | CURRENT SENSOR - A current sensor includes a housing having a pair of first slits, a bus bar supported by the housing and electrically connected to a battery post provided on a battery, an annular shield member arranged so as to surround an axis extending in a direction in which a current is flowed in the bus bar, and a magnetic-electric conversion element provided on the housing to detect a magnetic flux density of a magnetic field generated when the current is flowed in the bus bar and produce an electric signal. The magnetic-electric conversion element is arranged between the first slits. The shield member is inserted into the first slits so that the shield member is mounted on the housing. | 03-18-2010 |
20100102796 | STATE DETECTION DEVICE FOR DETECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS - An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. An anode current detected by the anode current detection resistor | 04-29-2010 |
20100102797 | STATE DETECTION DEVICE FOR DETECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS - An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. An anode current detected by the anode current detection resistor | 04-29-2010 |
20100109644 | MEDICAL TREATMENT DEVICE WITH TOOL RECOGNITION - A medical treatment device, such as a dental treatment device, is described, the device including a drive unit for driving multiple different tools that are detachably connectable to the treatment device and a tool recognition device for recognizing whether a tool is connected to the treatment device and/or which of the different tools is connected to the treatment device. The tool recognition device includes a coil and an evaluation unit, wherein the coil is connected or connectable to an AC voltage sources, and the coil is inductively couplable to the different tools, so that an AC voltage signal that is specific for each tool and that can be associated with the particular tool by the evaluation unit can be generated. | 05-06-2010 |
20100164480 | VOLTAGE DETECTION DEVICE AND VOLTAGE DETECTION METHOD - A voltage detection device that is connected to a DC circuit to which a DC voltage is applied and that detects the DC voltage applied to the DC circuit comprises a voltage conversion means for outputting a first voltage that increases as the DC voltage increases and a second voltage that decreases as the DC voltage increases, a voltage calculation means for inputting the first voltage and the second voltage outputted from the voltage conversion means and calculating the DC voltage based upon a difference between the inputted first voltage and the inputted second voltage, and a first failure judgment means for judging that failure has occurred if at least one of the first voltage and the second voltage is not inputted to the voltage calculation means. | 07-01-2010 |
20100164481 | METHOD FOR MEASURING TRANSCONDUCTANCE - A method for measuring transconductance of an oscillating circuit is provided. The oscillating circuit includes an inverter. When an input terminal and an output terminal of the inverter are floated, the bias voltage of the inverter is obtained by measuring the output terminal thereof. Based on floating the input terminal and respectively providing a first voltage and a second voltage to the output terminal, a first current corresponding to the first voltage and a second current corresponding to the second voltage are measured from the output terminal. The first voltage and the bias voltage have the same voltage levels. An output resistor value of the inverter is obtained according to the first and second voltages and the first and second currents. The transconductance of the oscillating circuit is obtained according to the output resistor value. | 07-01-2010 |
20100176794 | Signal Detector And Signal Detection Method - A signal detector and a signal detection method adapted for detecting a voltage signal are provided. According to a digital signal converted from a low voltage full wave or half wave signal and/or a mains AC signal inputted thereto, the signal detector and the signal detection method is capable of detecting a voltage level, and/or a frequency, and/or a zero point, and/or a phase of the low voltage full wave or half wave signal and/or the mains AC signal inputted thereto, and determining whether the detected factor is abnormal, and is further capable of outputting interrupt signal for subsequent processing. | 07-15-2010 |
20100259246 | SPLIT SHAPE CLOSED LOOP CURRENT TRANSDUCER - A current transducer having an open/closed structure of a penetration piece through which a measurement target line passes, includes: one pair of Hall devices, formed on both end gaps of an upper side portion, for sensing a current amount of the line to be measured; a feedback coil, arranged on an upper portion of the Hall devices, for canceling out a magnetic flux density of a magnet by inducing a current of a reverse direction to a current conducted in the measurement target line; a closed loop current sensing circuit for measuring a current flowing into the feedback coil; and a signal conversion circuit section for converting a current form of the measurement target line measured from the closed loop current sensing circuit into a direct current conversion signal relative to an effective value required from equipment connected to the current transducer, and outputting the direct current conversion signal. | 10-14-2010 |
20100289481 | APPARATUS AND METHOD FOR DC VOLTAGE MEASUREMENT - The invention provides a method for DC voltage measurement. First, an input DC voltage is received. A temporary disturbance signal is then added to the input DC voltage to obtain a disturbed signal, wherein an amplitude of the temporary disturbance signal is greater than precision level of an analog-to-digital converter. The disturbed signal is then converted from analog to digital with the analog-to-digital converter to obtain a plurality of samples with different values. An average value is then derived from the samples. Finally, the average value is output as a measurement value of the input DC voltage. | 11-18-2010 |
20100308795 | SENSOR APPARATUS - The present invention relates to a sensor apparatus having a structure capable of obtaining digital values of signal components with a high accuracy using an A/D conversing circuit with the outputted digital value thereof having a small number of expressive bits. In the sensor apparatus, a voltage value corresponding to the amount of incident light to a photodiode is held by a holding circuit through an integrating circuit and a CDS circuit. Meanwhile, a voltage value corresponding to the amount of incident light to an adjacent photodiode is held by another holding circuit through an integrating circuit and a CDS circuit. The voltage values held by the respective different holding circuits are inputted to a subtracting circuit through different paths. The subtracting circuit outputs a voltage value corresponding to the difference between the two inputted voltage values. In an A/D converting section, the difference voltage outputted from the subtracting circuit is converted into a digital value. | 12-09-2010 |
20110025301 | Detection of a load state of a half-bridge - Disclosed is a method for diagnosing a half-bridge having a first and a second switching element. The method includes providing a half-bridge that has a first and a second switching element connected in series with each other. The first and the second switching element are driven on and off cyclically, with the switching elements during one drive cycle being alternatingly driven on and off such that they are alternatingly subject to a load current flowing therethrough. A current measuring signal is provided, representing a current flow through one of the switching elements. A first reference signal is provided. A first diagnostic signal is generated that is dependent on an integral of the measuring signal over a first integration period, and on an integral of a first reference signal over a second integration period. | 02-03-2011 |
20110031958 | POWER CONVERSION EFFICIENCY MEASUREMENT SYSTEM AND METHOD - A system measures power conversion efficiency of a voltage regulator. A measurement setting module presets a maximum output current and a total measurement number, and calculates each target output current of the voltage regulator. A load adjustment module adjusts an impedance of the electronic load to equal current passing through the electronic load to the target output current of the voltage regulator. A calculation module calculates each output power and input power, and power conversion efficiencies for each sequence number of measurement. | 02-10-2011 |
20110037457 | READOUT APPARATUS FOR CURRENT TYPE TOUCH PANEL - A readout apparatus for a current type touch panel is provided. The readout apparatus includes a current-to-voltage converter, a voltage gain unit and an analog-to-digital converter (ADC). The current-to-voltage converter converts a sensing current of the current type touch panel to a sensing voltage. An input end of the voltage gain unit is coupled to an output end of the current-to-voltage converter for receiving the sensing voltage. An input end of the ADC is coupled to an output end of the voltage gain unit. An output end of the ADC generates a digital code. | 02-17-2011 |
20110057644 | ELECTRONIC MOTOR VEHICLE CONTROL SYSTEM WITH CURRENT MEASURING CIRCUIT - The invention relates to an electronic motor vehicle control system having at least one valve actuating circuit which controls a load current by means of pulse width modulation. The actuating circuit has at least one electronic current measuring circuit which has at least one measurement path with at least one analog/digital converter. The analog/digital converts an analog measurement signal of the load current into a digital measurement signal of the load current and is actuated or designed in such a way as to carry out a plurality of current measurements per PWM period. The at least one measurement path of the current measurement circuit has a signal conservation circuit which provides the analog measurement signal of the load current substantially unchanged, and independent of the actual load current, for at least a defined hold time (t | 03-10-2011 |
20110068772 | APPARATUS AND METHOD FOR DETECTING MODE CHANGE IN AN ELECTRONIC DEVICE - An apparatus and method for detecting a mode change in an electronic device are provided. The apparatus includes a rotary switch including a common port and a plurality of contact points corresponding to a plurality of modes, a comparator for comparing a voltage of the common port with a reference voltage to output a resultant signal, a measurement unit for measuring the voltage of the common port according to the resultant signal of the comparator, and a Micro Control Unit (MCU) for evaluating a changed mode based on the measured voltage. | 03-24-2011 |
20110169479 | 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, comprising a solid state electrical isolation device, enabled to (i) generate at least a first voltage measurement of an AC power source, (ii) generate a serial data stream frame based on the at least a first voltage measurement, and (iii) transmit the serial data stream frame via the solid state electrical isolation device. | 07-14-2011 |
20110204876 | Modular measuring device with distributed data and algorithms - A sensor module includes a sensor element with a transducer for emitting an electric analog primary signal, which depends on a measured value; and a circuit assembly for conditioning the primary signal and for unidirectional data communication of a digital signal, which depends on the primary signal, to a superordinated unit. The circuit assembly has the following components: a signal input for receiving the primary signal, which depends on the measured value; a secondary side, inductively coupling, plug connector element for connection to a primary side, inductively coupling, plug connector element of the superordinated unit for receiving an energy signal and for transferring a measurement signal; an energy supply circuit, which rectifies the energy signal and provides at least one direct voltage for supplying the sensor module components; an analog signal conditioning circuit for conditioning the primary signal to a secondary signal; an analog-digital converter for converting the secondary signal to a digital measurement signal; a modulator for modulating the received energy signal for transferring the measurement signal to a superordinated unit by means of load modulation; and a microcontroller for controlling the components of the circuit assembly. | 08-25-2011 |
20110316524 | APPARATUS FOR DIAGNOSING DC-DC CONVERTER AND METHOD THEREOF - A diagnosis device and method of a voltage transformer can include a current transformer disposed at one side of an output port for generating a current variation according to an on/off operation of a power switch element; a first current detector configured to detect a forward direction current from the current transformer; a second current detector configured to detect a reverse direction current from the current transformer; a first voltage transformer configured to transform the forward direction current detected from the first current detector to a forward direction voltage; a second voltage transformer configured to transform the reverse direction current detected from the second current detector to a reverse direction voltage; and a diagnosis portion for comparing the forward direction voltage with the reverse direction voltage to determine whether or not an offset is formed. | 12-29-2011 |
20120032666 | METHOD AND SYSTEM OF MEASURING CURRENT IN AN ELECTRIC METER - A method and system for measuring the current flowing through an electric meter. The electric meter includes a reactive sensor positioned in series with a bus bar contained in the meter. The reactive sensor includes an inductor and the voltage across the inductance is measured. A control unit contained in the electric meter calculates the current based on the detected voltage and the value of the inductor. The value of the inductor is determined by passing a reference current through the inductor at a known frequency, such as 50 Hz or 60 Hz, and the voltage drop across the inductor is measured. Once the value of the inductor is determined, the value is stored in the control unit. | 02-09-2012 |
20120229122 | CURRENT INPUT CONVERTER - According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other. | 09-13-2012 |
20120268105 | APPARATUS FOR ANALOG-TO-DIGITAL CONVERSION WITH A HIGH EFFECTIVE-SAMPLE-RATE ON THE LEADING EDGE OF A SIGNAL PULSE - A method and electronic device for outputting time values and energy of an analog input signal by dynamically determining a plurality of threshold values, comparing, using a plurality of comparator circuits, the plurality of threshold values against the analog input signal, outputting, using at least one time to digital conversion circuit connected to each of the plurality of comparator circuits, a plurality of time values, each time value output when the analog input signal meets or exceeds a threshold value of the threshold values, filtering the analog input signal, performing, using an analog-to-digital conversion circuit, analog-to-digital conversion of the filtered analog input signal to generate a digital signal, and calculating, in response to receiving a trigger signal, an energy of the digital signal. | 10-25-2012 |
20130002234 | High precision algorithmically assisted voltage divider with fault detection - A method, an algorithm, and circuits for implementation of a high-accuracy voltage divider are described that include a capability of fault detection. The disclosure allows for correction of non-catastrophic faults, such as significant changes of the components' values. The performance of the circuit built as described is vastly superior to operations achievable with the modern-day components utilized in previous standard and known configurations. | 01-03-2013 |
20130038318 | AC VOLTAGE DETECTING CIRCUIT AND IMAGE FORMING APPARATUS HAVING THE SAME - An AC voltage detecting circuit comprises: a first capacitor including a first electrode configured to connect to one end of an AC power supply, and a second electrode; a second capacitor including a first electrode configured to connect to the other end of the AC power supply, and a second electrode; a current-to-voltage converting circuit, which is connected in series between the second electrode of the first capacitor and the second electrode of the second capacitor, and which is connected to a reference potential, wherein the current-to-voltage converting circuit causes the AC current to pass through the current-to-voltage converting circuit when the AC current returns to the AC power supply, and converts an AC current output from the AC power supply into an detection AC voltage; and a voltage detecting unit, which detects an AC input voltage of the AC power supply, based on the detection AC voltage. | 02-14-2013 |
20130069631 | CURRENT SENSING SYSTEM AND METHOD - There is provided a current sense circuit ( | 03-21-2013 |
20130082687 | TRANSMITTER CALIBRATION SYSTEM - Systems and methods are provided for calibrating a transmitter system. A directional coupler is configured to provide a first signal representative of a forward power of an RF signal and a second signal representative of a reflected power of the RF signal. A splitting assembly is configured to generate respective third and fourth signals, each representative of the forward power, from the first signal. A switching assembly is configured to select between the second signal and the third signal. A system control is configured to determine an associated power of each of the fourth signal and a signal provided by the switching assembly. | 04-04-2013 |
20130082688 | LOW-POWER RF PEAK DETECTOR - Techniques are disclosed relating to radio frequency (RF) power detection. In one embodiment, a power detection circuit includes a multiplier circuit configured to multiply a first voltage signal by a second voltage signal. The multiplier circuit receives the first voltage signal at gates of a first transistor pair and receives the second voltage signal at gates of second and third transistor pairs. In some embodiments, a drain of a first transistor in the first transistor pair is coupled to sources of the second transistor pair, and drain of a second transistor in the first transistor pair is coupled to sources of the third transistor pair. In some embodiments, the power detection circuit includes a comparison circuit that compares the first pair of currents and a second pair of currents associated with a threshold voltage signal. | 04-04-2013 |
20130278242 | CURRENT SENSING SYSTEM AND METHOD - There is provided a current sense circuit ( | 10-24-2013 |
20130320960 | APPARATUS AND METHODS FOR MEASURING A CURRENT - An apparatus and methods for measuring a current flowing into an electrical device are described. In the apparatus, a current sensing circuit has at least one monolithic device, which in turn has a positive operating voltage and a negative operating voltage. The current sensing circuit is coupled to a power supply for the electrical device and the at least one monolithic device is arranged to enable a signal representative of the input current from the power supply to the electrical device to be output. The apparatus also has a power converter for converting a first voltage output by the power supply to a second voltage for supply as the positive operating voltage and a voltage clamp arranged to clamp the difference between the positive and negative operating voltages. | 12-05-2013 |
20130342187 | RESISTIVE VOLTAGE DIVIDER WITH IMPROVED PHASE ACCURACY - A resistive voltage divider includes a first resistor and a second resistor electrically connected in series. Each of the resistors is made of an electrically resistive film material and applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million, where two ends of the trace of the second resistor overlap at least in part with a first and a second) contacting terminal, respectively, and two ends of the trace of the first resistor overlap at least in part with the first and third contacting terminal, respectively. In order to decrease the parasitic capacitance between the first contacting terminal and the third contacting terminal, the second contacting terminal is placed with at least a screening part between the first and the third contacting terminals. | 12-26-2013 |
20140028287 | CURRENT TRANSFORMER - A current transformer is described which comprises a housing having one or more apertures, each for receiving a primary cable or busbar, one or more magnetic cores enclosed within the housing and being positioned proximate to respective ones of the apertures so that a magnetic field is produced in a magnetic core when a primary current flows through a primary cable or busbar received through the respective aperture, and one or more secondary windings enclosed within the housing, each secondary winding being wrapped around at least a portion of a respective magnetic core so that a secondary current is induced in a secondary winding when a magnetic field is produced in the respective magnetic core. Shunt circuitry is enclosed within the housing and is connected across the secondary windings to generate a respective voltage signal for each secondary winding. A connector socket is integrally mounted to the housing for outputting the voltage signals. In this way, the labour costs incurred during installation of the current transformer can be reduced, a risk of wiring errors can be avoided, and a risk of electrocution from secondary terminals being left open-circuit is removed. | 01-30-2014 |
20140055125 | POWER MONITORING DEVICE - Power monitoring devices, a converter therefor that may be installed in the field, and a kit comprising such a power monitoring device and a converter are disclosed herein. The power monitoring devices may include a housing enclosing circuitry having one or more processors to monitor parameters of a power system and having a plurality of conduits passing therethrough and an electrically conducting plate mounted in the housing in contact with each of the conduits to electrically ground the conduits. The power monitoring device may also include a class two input terminal block for powering the circuitry and a plurality of wires connected thereto that extend out of the housing through such that the device, before installation in the field, can be pre-configured. | 02-27-2014 |
20140300346 | Electrical Current Shunt - A distributed current shunt circuit evenly divides one large shunt into a number of parallel connected, smaller shunts, each having the same resistance value. With proper electronics such as an instrumentation amplifier for each shunt, an operational amplifier, and precision resistors, the device measures the total current by adding or averaging voltage readings of these small shunts. | 10-09-2014 |
20140306690 | APPARATUS FOR CURRENT MEASUREMENT - A voltage to current converter is provided for use with a current measuring device, said current measuring device being operable to provide an output voltage which is an analogue of a current to be measured. The converter is arranged to provide an output current which is an analogue of the current to be measured. The converter comprises an electronic controller, a switching amplifier and means for measuring the output current as an analogue voltage and providing a measure of said analogue voltage to the electronic controller. | 10-16-2014 |
20140333287 | SYSTEM FOR MEASURING POWER CONSUMPTION OF INTEGRATED CIRCUIT - An integrated circuit includes electronic components, a voltage regulator for generating a control voltage, and a power consumption measurement module. The power consumption measurement module is connected to the voltage regulator and includes an analog-to-digital converter (ADC) for converting the control voltage to multiple digital control voltage samples, an averaging module for averaging the digital control voltage samples, and a current profiling module for receiving the averaged control voltage data and determining an average current from averaged control voltage data. The average current represents power consumption of the integrated circuit. | 11-13-2014 |
20140333288 | POWER LEVEL IDENTIFICATION CIRCUIT, POWER LEVEL FLAG CIRCUIT AND POWER LEVEL SUPPLY SYSTEM - A power level identification circuit includes a power interface, a voltage conversion unit, a waveform detection unit, a signal pre-processing unit and a processing unit. The power interface receives electrical power and first signals indicating a level of the power. The voltage conversion unit receives the power from the power interface and converts the power. The waveform detection unit filters the power and obtains the first signals indicating power level. The signal pre-processing unit shapes the waveform of the first signals indicating power level and thereby generates second signals indicating power level. The processing unit identifies a level of the second signals indicating power level and switches to one of modes of the power level identification circuit corresponding to the identified level of the second signals indicating power level. A power level flag circuit and a power level supply system are also provided. | 11-13-2014 |
20140333289 | CURRENT DETECTION DEVICE FOR MULTI-SENSOR ARRAY - A current detection device for a multi-sensor array is provided. The current detection device includes a current input unit, a current conversion unit, a digital conversion unit, and a voltage applying unit. The current input unit amplifies a plurality of current signals input from a multi-sensor array according to a predetermined current minor ratio, and fixes each of node voltages to which the plurality of current signals are input. The current conversion unit converts each of the amplified current signals into an amplified voltage signal using a plurality of feedback resistors and an operational amplifier which are connected in parallel. The digital conversion unit converts each of the amplified voltage signals converted by the current conversion unit into a digital value. The voltage applying unit generates voltages for driving each of the multi-sensor array, the current input unit, the current conversion unit, and the digital conversion unit, and applies the generated voltages thereto. | 11-13-2014 |
20150008901 | PRE-CHARGING FILTERS TO REDUCE SETTLING TIME - Various arrangements for determining a voltage of a voltage source using pre-charging are presented. Such arrangements may include a measurement module which includes an analog to digital converter, a driver, and an interface. The interface may be electrically coupled with the analog to digital converter and the driver. The driver may be configured to output current to charge a capacitor. After a first predefined period of time, the driver may stop outputting current to pre-charge the capacitor. After the driver has stopped pre-charging the capacitor and a second predefined period of time has elapsed, the analog to digital converter may be configured to measure a voltage of the capacitor. Such arrangements may include a capacitor, wherein the capacitor is electrically coupled with the interface of the measurement module. | 01-08-2015 |
20150091550 | ENERGY MONITOR FOR A POWER SOURCE - Examples are disclosed for an integrated circuit (IC) device coupled to a battery-operated power supply unit, such as an IC in a mobile computing device or wireless phone, to accurately determine energy usage drawn from the power supply unit under rapidly dynamic circumstances. A current sense signal of a power line from the power supply unit is digitized. The digitized current sense is added to an accumulator at a rate that is approximately proportional to a voltage of the power line from the power supply unit. The accumulator is then outputted and scaled to units relevant to energy measurements. The energy measurement is used to estimate remaining battery life. Triggering the digitization of the current sense signal may be by use of a pulse generation circuit, or by use of an overflow indicator of an accumulator for a digitized voltage sense signal. Other examples are described and claimed. | 04-02-2015 |
20150108965 | SHUNT RESISTANCE TYPE CURRENT SENSOR - A shunt resistance type current sensor includes a bus bar that has an approximately flat plate shape, a circuit board that is installed to the bus bar, a pair of connecting terminal portions that electrically connects the circuit board to the bus bar, and a voltage detection unit that is mounted on the circuit board and detects a voltage value applied to the circuit board through the pair of connecting terminal portions so as to calculate a level of an electric current flowing through the bus bar. Each of the pair of connecting terminal portions extends from edge of the bus bar, and is erected toward the circuit board to penetrate the circuit board. | 04-23-2015 |
20150301092 | VOLTAGE POLARITY DETECTION FOR DCM/CCM BOUNDARY DETECTION IN DC/DC CONVERTERS - There is described a circuit and a method of detecting a voltage polarity for the detection of a Continuous Conduction Mode to Discontinuous Conduction Mode boundary of a switched DC-DC converter. There is provided use of a dynamic current mirror to store in a first capacitor (C) a voltage representative of the conduction voltage (V | 10-22-2015 |
20150316590 | LOW ELECTROMAGNETIC INTERFERENCE VOLTAGE MEASUREMENT SYSTEM - A low electromagnetic interference (“EMI”) voltage measurement system may include a voltage-digitizing transmission module configured to digitize multiple input voltages and digitally transmit values, a fiber optic cable configured to transmit values from the transmission module to a receiver module and from the receiver module to a personal computer having recording software. Various methods are also provided including steps associated with multiplexing voltage to fiber-optical conversion. | 11-05-2015 |
20150323571 | CURRENT SENSING SYSTEM AND METHOD - There is provided a current sense circuit ( | 11-12-2015 |
20160109486 | VOLTAGE DETECTING APPARATUS - A voltage detecting apparatus detects a detection voltage generated in a detected object which is covered by an insulator. The voltage detecting apparatus includes: a detection electrode that is disposed so as to contact the insulator directly, or indirectly via another insulator; a vibrator that causes the insulator to vibrate; a current-to-voltage converter circuit that converts a detection current to a detection voltage signal, the detection current flowing from the detected object via the detection electrode to a reference voltage in a state where the insulator is being caused to vibrate, having an amplitude that is modulated in accordance with a potential difference between the detection voltage and the reference voltage, and being synchronized with vibration of the vibrator; and a detector circuit that detects a detection output indicating the potential difference from the detection voltage signal. | 04-21-2016 |
20160139184 | VOLTAGE TEST APPARATUS AND METHOD - The disclosure provides a voltage test apparatus for CPU serial voltage identification signal including a collecting module, a detecting module, and a processing module. The collecting module obtains the SVID signal from the CPU, the detecting module obtains the work voltage from the CPU. The processing module obtains the SVID signal and the work voltage from the collecting module and the processing module. The processing module converts the SVID signal to an analog voltage. The processing module further compares the work voltage with the analog voltage. The disclosure also provides a testing method for CPU SVID signal. | 05-19-2016 |
20160154032 | CURRENT MEASUREMENT CIRCUIT | 06-02-2016 |
20160154033 | MEASUREMENT APPARATUS | 06-02-2016 |
20160178673 | CIRCUIT BREAKER | 06-23-2016 |
20160187394 | MEASURING TRANSDUCER FOR CONVERTING AN ANALOGUE ELECTRICAL INPUT SIGNAL INTO AN ANALOG ELECTRICAL OUTPUT SIGNAL - A measuring transducer for converting an analog electrical input signal into an analog electrical output signal. The measuring transducer contains a detection apparatus which is designed to detect an analog electrical input signal within a predetermined input measurement range, wherein the input measurement range of the measuring transducer is divided into n adjustable partial input measurement ranges and the output range of the measuring transducer is divided into n adjustable partial output ranges, where n is greater than 1. Further, an apparatus is provided which is designed to recognize the partial input measurement range in which the detected analog electrical input signal lies. An imaging apparatus is designed to map each partial input measurement range to a separate partial output measurement range of the n partial output measurement ranges. An apparatus is designed to convert the detected analog electrical input signal into the associated analog electrical output signal depending on the recognized partial input measurement range. | 06-30-2016 |