03rd week of 2011 patent applcation highlights part 18 |
Patent application number | Title | Published |
20110012517 | ORGANIC ELECTROLUMINESCENT DEVICE - The present invention provides a display device which includes photoelectric elements (E | 2011-01-20 |
20110012518 | LANTERN WITH REMOVABLE LIGHTS - A lantern having a plurality of removable area lights. Each area light includes a separate power source capable of powering the area light. Each area light is separately selectively illuminable by activating a switch on the area light. The lantern includes a docking station having a docking station power source capable of simultaneously powering all area lights attached to the docking station simultaneously or any subset of the area lights attached to the docking station. | 2011-01-20 |
20110012519 | ANALOG-TO-DIGITAL CONVERTER WITH NON-UNIFORM ACCURACY - An analog-to-digital converter (ADC) implements non-uniform conversion accuracy so as to allow for high conversion accuracy for a select narrower input range while also accommodating a wider overall input range and requiring fewer conversion bits compared to conventional ADCs. The ADC includes an ADC core that receives an input signal and outputs a first digital value having a first number of bits, the first digital value based on the input signal and an accuracy configuration of the ADC core. The ADC also includes an encoder to generate a second digital value have a second number of bits, greater than the first number of bits, based on the first digital value and the accuracy configuration of the ADC core. The ADC further includes an accuracy controller to adjust the accuracy configuration of the ADC core based on a relationship between the first digital value and at least one threshold. | 2011-01-20 |
20110012520 | APPARATUS FOR DRIVING A LIGHT EMITTING DIODE - An apparatus for driving a light emitting diode (LED) comprises: an LED unit configured as a plurality of LEDs are serially connected to each other; a rated current providing unit connected to one end of the LED unit, for providing a current to the LED unit under control of a controller; a voltage dividing unit connected between another end of the LED unit and another end of the rated current providing unit; and a voltage measuring unit connected to the LED unit in parallel, for measuring a voltage applied to the LED unit. | 2011-01-20 |
20110012521 | Backlight Unit With Controlled Power Consumption And Display Apparatus Having The Same - In a display apparatus having a backlight unit, a light unit includes plural light source strings commonly connected to an output terminal of a boosting circuit to generate light in response to a light source driving voltage. The light source strings are grouped into plural light generating groups. Plural driving circuits are respectively connected to the light generating groups, and each driving circuit sequentially outputs feedback voltages from the light source strings of a corresponding light generating group. A minimum voltage detecting circuit compares the feedback voltages with each other from the driving circuits to detect a minimum voltage and outputs a control signal according to the detected minimum voltage. A voltage control circuit controls a voltage level of the light source driving voltage in response to the control signal. Accordingly, although the number of the driving circuits increases, power consumption used in each driving circuit may be reduced. | 2011-01-20 |
20110012522 | FIXED FREQUENCY DIMMING METHOD AND FIXED FREQUENCY DIMMING CIRCUIT FOR LIGHT EMITTING MODULE - A fixed frequency dimming method and fixed frequency dimming circuit for a light emitting module can control light emitting brightness of the light emitting module through a hysteresis control circuit. A voltage difference between an upper limit voltage and a lower limit voltage of a hysteresis width of the hysteresis control circuit is maintained at a fixed value, and a driving current flowing through the light emitting module is changed by changing the upper limit voltage or the lower limit voltage. | 2011-01-20 |
20110012523 | METHOD AND CURRENT CONTROL CIRCUIT FOR OPERATING AN ELECTRONIC GAS DISCHARGE LAMP - In a method for operating an electronic gas discharge lamp by a TRIAC circuit, a current is drawn from the dimmer circuit when the TRIAC is in a non-conductive state to bring the TRIAC in the conductive state and the current drawn from the dimmer circuit is reduced when the TRIAC is in a conductive state. According to the invention a substantially fixed current is drawn from the dimmer circuit in the conductive state of the TRIAC at a sufficient level to maintain the TRIAC in the conductive state. To this end a current control circuit for controlling a current drawn from a power source including a voltage controlled variable resistive switch circuit driven by a voltage control circuit. | 2011-01-20 |
20110012524 | DISCHARGE LAMP LIGHTING DEVICE, PROJECTOR, AND DRIVING METHOD OF DISCHARGE LAMP - In at least one embodiment of the disclosure, a discharge lamp lighting device comprises a discharge lamp driving section and a control unit. The control unit alternately performs a first DC driving processing and a first AC driving processing in a first portion of the driving current. The control unit alternately performs a second DC driving processing and a second AC driving processing in a second portion of the driving current different from the first portion. The control unit performs the first AC driving processing and the second AC driving processing such that a frequency of a first alternating current and a frequency of a second alternating current have different values. | 2011-01-20 |
20110012525 | DISCHARGE LAMP LIGHTING DEVICE, PROJECTOR, AND DRIVING METHOD OF DISCHARGE LAMP - In at least one embodiment of the disclosure, a discharge lamp lighting device comprises a discharge lamp driving section, a state detecting section that detects a deterioration state of an electrode of a discharge lamp, and a control unit. The control unit alternately performs a first DC driving processing and a first AC driving processing in a first section of the driving current. The control unit alternately performs a second DC driving processing and a second AC driving processing in a second section of the driving current different from the first section. According to a progress of the deterioration state of the electrode, the control unit increases a length of at least one of: (i) a period for which the first DC driving processing is performed, and (ii) a period for which the second DC driving processing is performed. | 2011-01-20 |
20110012526 | POWER FACTOR CORRECTION AND DRIVER CIRCUITS - Power factor correction and driver circuits and stages are described. More particularly, power factor correction circuits are described that utilize an auxiliary inductor winding for power regulation. Driver circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. An exemplary embodiment of a driver circuit can implement a comparator and/or a voltage regulator to allow for improved output current uniformity for high-voltage applications and loads, such as series configurations of LEDs. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus. | 2011-01-20 |
20110012527 | SYNCHRONOUS OPERATION SYSTEM FOR DISCHARGE LAMP LIGHTING APPARATUSES, DISCHARGE LAMP LIGHTING APPARATUS, AND SEMICONDUCTOR INTEGRATED CIRCUIT THEREOF - Each of discharge lamp lighting apparatus that are connected to a common line includes a sawtooth-wave oscillator to generate a sawtooth signal for PWM-controlling a plurality of switching elements passing a current through a primary winding of a transformer and a capacitor of a resonant circuit connected to a discharge lamp, a PWM comparator controlling the plurality of switching elements according to the sawtooth signal, and a pulse synchronization circuit providing the common line with a synchronization pulse signal based on a pulse signal in relation to the sawtooth signal, and when receiving a synchronization pulse signal from the common line, synchronize the oscillation frequency of the sawtooth signal with the frequency of the synchronization pulse signal from the common line. So that a voltage of aligned frequency and phase is applied to one end of each discharge lamp. | 2011-01-20 |
20110012528 | Control Switch - A method and apparatus are provided for operating a control switch. In one embodiment, the control switch includes an input terminal coupled to an alternating current (AC) power supply, a load terminal coupled to a load, a triac circuit coupled to the input terminal and the load terminal, a microcontroller and a power supply. The triac circuit may be configured to receive a triggering voltage and provide an activation pulse to the load based on one or more triggering voltage signals supplied by the microcontroller. In another embodiment, the power supply may be configured to step down AC power received from the input terminal and supply line voltage to the microcontroller. | 2011-01-20 |
20110012529 | LIGHTING APPARATUS - Lighting apparatuses that include a reflector attached to an adjustable support, a reflective surface on the reflector that defines an interior space and a focal point within the interior space, a light source partially disposed within the interior space and positioned substantially near the focal point, wherein the light source is configured to generate light by passing an electrical current through the lighting element. In some examples, the adjustable support defines a flexible stem. In other examples, the adjustable support defines a collection of bars rotatably connected at pivot points. | 2011-01-20 |
20110012530 | ADAPTIVE DIMMER DETECTION AND CONTROL FOR LED LAMP - An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches. | 2011-01-20 |
20110012531 | LED LAMP - An LED lamp includes an elongated lamp post, a major light fixed on a top of the lamp post, a solar panel arranged on the lamp post and exposed to sunshine, a battery received in the lamp post and connected to the solar panel, an assistant light fixed on the lamp post, and a driving unit interconnecting the assistant light and the battery to control electric current to the assistant light. The major light consists of a plurality of LEDs. The assistant light consists of LEDs or fiber optic lights. | 2011-01-20 |
20110012532 | WIRELESS SCENE ARRANGEMENT - An example control arrangement includes a power supply, a first load operative to receive power when coupled to the power supply, and a second load operative to receive power when coupled to the power supply. A receiver is programmable to couple the first load, the second load, or both to the power supply in response to a wireless signal. A switch includes a wireless transmitter portion powered by a self-energizing portion. A wireless transmitter portion communicates the wireless signal to the receiver in response to an actuation of the switch. | 2011-01-20 |
20110012533 | COLOR LED DRIVER - Disclosed herein is a color LED driver, which is capable of being implemented by a compact structure without a feedback structure and accompanying a small size and low cost, by directly connecting a negative temperature coefficient (NTC) thermistor to a driving current path of a color LED applied to an LCD backlight to compensate a characteristic variation of the LED due to a variation in a temperature. The color LED driver includes a driving constant voltage source | 2011-01-20 |
20110012534 | PORTABLE LIGHTING DEVICES - A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a plurality of modes of operation. The portable lighting device comprises a main power circuit including a light source, an inertial sensor having a plurality of signal outputs, and a controller electrically connected to the outputs of the inertial sensor and the main power circuit in a manner to permit the controller to enter into a new mode of operation based on signals received from the outputs of the inertial sensor. One method of operating the portable lighting device is by positioning the portable lighting device to one of a plurality of predetermined positions to enter into one of a plurality of modes of operation. Each of the plurality of predetermined positions is associated with one of the plurality of modes of operation. | 2011-01-20 |
20110012535 | PORTABLE LIGHTING DEVICES - A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a plurality of modes of operation. The portable lighting device comprises a main power circuit including a light source, an inertial sensor having a plurality of signal outputs, and a controller electrically connected to the outputs of the inertial sensor and the main power circuit in a manner to permit the controller to enter into a new mode of operation based on signals received from the outputs of the inertial sensor. One method of operating the portable lighting device is by positioning the portable lighting device to one of a plurality of predetermined positions to enter into one of a plurality of modes of operation. Each of the plurality of predetermined positions is associated with one of the plurality of modes of operation. | 2011-01-20 |
20110012536 | ELECTRONIC BALLAST WITH DIMMING CONTROL FROM POWER LINE SENSING - The present invention discloses an electronic ballast with dimming control from power line sensing for a fluorescent lamp, comprising: a control voltage generator, used to generate a control voltage according to a switching count of a power line; an oscillator, used to generate an oscillating signal, wherein the oscillating signal is of a fixed frequency and has a rising voltage portion and a falling voltage portion; and a comparator, used to generate a high side gating signal according to voltage comparison of the oscillating signal and the control voltage. | 2011-01-20 |
20110012537 | Driver circuit and method for driving load circuit - The present invention discloses a driver circuit and a method for driving a load circuit. The driver circuit includes: a primary side circuit receiving rectified AC power; a transformer coupled to the primary side circuit and converting a primary voltage to a secondary voltage which is supplied to a load circuit; and a secondary side circuit coupled to the transformer, the secondary side circuit detecting current flowing through the load circuit and feedback controlling the primary side circuit accordingly. | 2011-01-20 |
20110012538 | LATCH-OFF OF SYNCHRONOUS RECTIFICATION FOR LIGHT LOAD CONTROL - Disclosed is a light load control circuit and the method accordingly where the synchronous rectification is latched off when the light load condition is detected for several successive cycles. | 2011-01-20 |
20110012539 | Time-Delayed Power Switching Device and Methods of Use - A time-delayed power switching device for providing power pass-through and timed off conductive pathways to one or more light outputs comprises a power source input, one or more first conductive pathways, one or more second conductive pathways, at least one timing circuit, and at least one relay. The time-delayed power switching device controls power from a power source electrically coupled though the power source input to the timed off conductive pathways by operation of the at least one timing circuit controlling the at least one relay. The relay has a first position adapted to energize the second conductive pathways when receiving a first signal from the timing circuit, and a second position adapted to de-energize the second conductive pathways when receiving a second signal from the timing circuit. Additionally, methods of using one or more time-delayed power switching devices to retrofit lighting areas are disclosed. | 2011-01-20 |
20110012540 | Multipurpose flame light - A multipurpose flame light is disclosed, which is made up of a body and an ON-OFF control unit, where the body is formed by a lighting module of a neat and ordered array of multiple LED lamps and an actuator for offering stable electric voltage and current to the lighting module. The body is provided with a base at its bottom and a wire slot at its one side, where the base is further provided with a control system in it, which comprises a memory and a CPU. The ON-OFF control unit is connected to the control system through a data line passing through the wire slot. And the ON-OFF control unit further comprises an on-off switch and a fine-tuning switch. By turning the on-off switch, the lighting module, controlled by the control system, is switched between flame-light mode and illumination-light mode, and by turning the fine-tuning switch, the multiple LED lamps of the lighting module is being controlled by the control system to execute various lightening sequences that are programmed beforehand or to adjust the intended luminance. | 2011-01-20 |
20110012541 | WIRELESS SWITCHING APPLICATIONS - A wireless lighting system includes an enclosure containing a lighting load. The enclosure has a panel that is movable to access an inside of the enclosure, and the panel has a closed position and at least one open position. The system also includes a self-energizing switch that is actuated to transmit a wireless signal by a movement of the panel to or from the closed position. A receiver is operable to selectively couple the lighting load to a power supply in response to the signal from the self-energizing switch. | 2011-01-20 |
20110012542 | DRIVE SYSTEM FOR POWER SWITCHING ELEMENTS - A drive system has a low voltage system, a high voltage system, and a transformer. The high voltage system has drive units which correspond to power switching elements. A capacitance in the high voltage system serves as a flouting power source which supplies electric power to each of the drive units. An output voltage of a secondary side coil of the transformer is supplied to the capacitance. A comparator compares the output voltage at the secondary side coil of the transformer with a threshold value. A switching speed change part changes the switching speed of each of the power switching element based on the comparison result of the comparator. | 2011-01-20 |
20110012543 | ELECTRIC POWER CONVERTER - An electric power converter includes a DC to DC converter section adjusting DC power of a battery with at least two units in series, a DC circuit having at least two DC link capacitors in series between a positive and a negative line from the DC to DC converter section, an electric power converter section connected to the DC circuit to convert DC electric power to AC electric power for a motor, a bilateral switching circuit connecting an intermediate potential point between the capacitors and an AC output point in the electric power converter section, and a short-circuit between the intermediate potential point of the DC circuit and an intermediate potential point between the battery units. Normal operation of a load is ensured even when the battery, the capacitor in the DC circuit or the switching device in the electric power converter section becomes abnormal, while achieving high efficiency. | 2011-01-20 |
20110012544 | METHODS, SYSTEMS AND APPARATUS FOR SENSORLESS ROTOR ANGULAR POSITION ESTIMATION IMPLEMENTING REDUCED SWITCHING LOSS PULSE WIDTH MODULATED (PWM) WAVEFORMS - Methods, system and apparatus are provided for low speed sensorless rotor angular position estimation that implements reduced switching loss PWM waveforms. | 2011-01-20 |
20110012545 | METHOD FOR CONTROLLING A MULTIPHASE ELECTRIC MOTOR OPERATING IN STAR-CONNECTED MODE - A method serves for starting a polyphase electric motor which is operated in a star connection. The method conductively bridges at least one winding part of a phase of the motor and electrically disconnects the bridged winding part, in order in this manner, to supply a higher voltage to the remaining, electrically effective windings, and thus to increase the flow of current and thus the torque. | 2011-01-20 |
20110012546 | POWER CONTROL CIRCUIT FOR HARD DISK DRIVE - A power control circuit for a hard disk drive (HDD) includes a first control circuit, a second control circuit, a first connector connected to a power supply, the first and second control circuits, and a second connector connected to the first control circuit and the HDD. The power supply outputs a first voltage signal and a second voltage signal to the first and second control circuits via the first connector. The first control circuit converts the first and second voltage signals into a form compatible with a timing sequence of the HDD receiving voltage signals, and outputs the first and second voltage signals to the HDD via the second connector. The second control circuit controls the first control circuit. | 2011-01-20 |
20110012547 | System and Method for a High Efficiency Remote Three Phase Fan Commutation Integration Control in an Information Handling System - An information handling system includes a three phase brushless direct current motor and a motherboard which in turn includes a drive circuit. The three phase brushless direct current motor is configured to rotate a cooling fan in the information handling system based on a control signal. The drive circuit is connected to the three phase brushless direct current motor, and the drive circuit is configured to adjust the control signal sent to the three phase brushless direct current motor based on a back electromagnetic flux signal. | 2011-01-20 |
20110012548 | Safty system for electric ride-on toys - A safety system for an electric ride-on toy includes a current regulator electrically connected between the battery and electric motor; and a control module connected to the current regulator, having an input device adapted to receive a safety command, and adapted to activate the current regulator if the safety command is received. When activated, the current regulator reduces the electrical current provided from the battery to the electric motor. Current reduction can be in whole or in part. The control module can include a variable resistor. The safety system can optionally include a reset mechanism. When activated, the current regulator remains activated until the reset mechanism is triggered. The input device can be a wireless receiver, and the safety system can further include a wireless transmitter for sending the safety command and/or a warning signal. The wireless transmitter can include an antennae positioned to form a boundary, which can be open or closed. | 2011-01-20 |
20110012549 | ELECTRIC MOTOR - A direct current motor comprising a stator and a rotor. The rotor comprises: a shaft; a rotor core fixed to the shaft; a commutator fixed to the shaft; and rotor windings wound about poles of the rotor core and terminated on the commutator. The motor also has a common brush and at least two selectable brushes in sliding contact with the commutator; at least two direct current power sources; and a switching device configured to connect the common brush and a selected one of the selectable brushes with predetermined combinations of the power sources to operate the motor in different speed modes. | 2011-01-20 |
20110012550 | POWER TOOL - A power tool comprises a housing, a direct current motor arranged in the housing, a speed reduction mechanism coupled to a shaft of the motor, a tool head driven by the speed reduction mechanism, a first direct current power source, and a switching device. The motor comprises a common brush, a high speed brush and a low speed brush which are in sliding contact with a commutator. The switching device is configured to selectively connect the common brush and the high speed brush with the power source to operate the motor in a high speed mode and to connect the common brush and the low speed brush with the power source to operate the motor in a low speed mode. | 2011-01-20 |
20110012551 | SINGLE STAGE LOW BOOST/BUCK RATIO STAND-ALONE SOLAR ENERGY POWER GENERATING CIRCUIT AND SYSTEM THEREOF - A single stage low boost/buck ratio stand-alone solar energy power generating circuit with a system thereof is a simplification of a two-stage type circuit. The two-stage circuit, which has a storage unit, a charging converter circuit for charging the storage unit, and a discharging converter circuit for discharging the stored power to a load, is analyzed and categorized such that a circuit structure is selected via a suitable simplified combination to commonly use the elements constituting the charging and the discharging converter circuits so as to form the single stage circuit with less elements, volume and weight for reducing the production cost of the circuit. | 2011-01-20 |
20110012552 | Electrical power source - A portable power supply coupled to a garment, carrying bag, or other apparatus, is adapted for receiving energy at a solar cell or by way of a power input port for operating and charging a portable device. Power is stored within the power supply in one or more batteries or other storage devices. An output of the portable power supply is adapted to be reconfigured so as to be coupled to various types of portable device. | 2011-01-20 |
20110012553 | METHOD OF CHARGING A HYBRID ELECTRIC VEHICLE - A method for charging a hybrid electric vehicle having a high voltage battery that both propels the vehicle and starts the vehicle. More specifically, if the high voltage battery has a depleted or diminished charge and is unable to start an internal combustion engine, then the method described herein may be used to charge the high voltage battery with energy from a low voltage external power source. In one embodiment, the low voltage external power source is a conventional car battery that is connected to the hybrid electric vehicle by way of jumper cables. | 2011-01-20 |
20110012554 | APPARATUS AND METHOD FOR IMPROVING THE STANDBY EFFICIENCY OF A CHARGER, AND ULTRA LOW STANDBY POWER CHARGER - A charger has two pins for connecting with a battery therebetween, and an apparatus and method are proposed to determine to wake up or turn off the charger according to a voltage or a current detected from the two pins, to reduce the standby power consumption of the charger. | 2011-01-20 |
20110012555 | CHARGING DEVICE AND CONNECTION ELEMENT - A charging device is described that includes a charging device base having a plurality of first connection element interfaces and a plurality of connection elements, each connection element a second connection element interface and being removably coupled with the charging device base by a coupling of its second connection element interface with a first connection element interface. At least one connection element of the plurality of connection elements includes a speaker for outputting an audio signal supplied to the connection element or includes a battery compartment for charging a battery. | 2011-01-20 |
20110012556 | Wireless Chargeable Game Device - A wireless chargeable game device of the present invention comprises a body and a charging device. A transmitting circuit of wireless charging is provided in a case of the charging device, and a receiving circuit of wireless charging is provided in a case of the body. While charging, the transmitting circuit of the charging device is connected to the receiving circuit of the body by electromagnetic coupling. The wireless chargeable game device of the present invention is charged wireless to make the charging process easy and convenient thereby improving the entertainment experience of people using the game device, and making the charging structure completely waterproof and dustproof to improve the service life. A series resonant circuit is driven by a fixed frequency generated by a single chip microcomputer for saving a frequency adjustment circuit so as to simplify the circuit and save the cost. (FIG. | 2011-01-20 |
20110012557 | ELECTRIC POWER CHARGE AND DISCHARGE SYSTEM - An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged. | 2011-01-20 |
20110012558 | CONTROL STRATEGY FOR HV BATTERY EQUALIZATION CHARGE DURING DRIVING OPERATION IN FUEL CELL HYBRID VEHICLES - A system and method for equalizing the state of charge of the cells of a battery in an electric vehicle while the vehicle is being driven. The method includes monitoring the state of charge of the battery cells in the battery and measuring the actual current of the battery. The method also includes determining a maximum charge current limit of the battery and comparing the actual battery current and the charge current limit. The method also includes modifying the charge current limit based on the comparison between the actual battery current and the charge current limit. The method then converts the modified charge current limit to a power charge limit and then over charges the battery using a small amount of current and the power charge limit so that all of the cells in the battery become fully charged. | 2011-01-20 |
20110012559 | CIRCUIT ARRANGEMENT AND METHOD FOR TRANSFERRING ELECTRICAL CHARGE BETWEEN ACCUMULATORS OF AN ACCUMULATOR ARRANGEMENT - A circuit arrangement for transferring electrical charge between accumulators of an accumulator arrangement includes a number of first series circuits, each connecting in parallel to one of the accumulators, and each comprising a switching element and an inductive storage element connected in series to the load path of the switching element. The circuit arrangement also includes a further series circuit connected in parallel to the accumulator arrangement and comprising a further switching element having a load path and a control terminal, and a further inductive element connected in series to the load path, the further inductive element being inductively coupled to the inductive elements of the first series circuits. The circuit arrangement also includes a control circuit comprising a number of first control outputs connected to the control terminals of the switching elements of the first series circuits, and a further control output connected to the control terminal of the further switching element. | 2011-01-20 |
20110012560 | BATTERY PACK - A battery pack is disclosed, including: a battery cell group of serially interconnected battery cells; discharge control circuitry for the battery cell group; and a discharge output terminal through which a discharge output of the battery cell group is supplied to an externally coupled electric device. The battery cell group cooperates with an input/output terminal electrically connected with the battery cell group to constitute one of battery modules which are serially connected with one another to constitute a battery module group. The battery pack further includes: a first detector detecting at least one of a voltage, a temperature and a current; and a first selector configured to select one of an enabling mode for the input/output terminal and a disabling mode. The discharge control circuitry transmits to the first selector a first signal indicating that output of a voltage to the discharge output terminal is disabled, when the discharge control circuitry attempts to disable the output of a voltage to the discharge output terminal, based on a detection result of the first detector. The first selector, based on the first signal received from the discharge control circuitry, enters the disabling mode. | 2011-01-20 |
20110012561 | BATTERY CHARGER WITH AUTOMATIC VOLTAGE DETECTION - A battery charger is disclosed that is configured to be connected to an external battery by way of external battery cables. In accordance with an important aspect of the invention, the battery charger is configured with automatic voltage detection which automatically determines the nominal voltage of the battery connected to its terminals and charges the battery as a function of the detected nominal voltage irrespective of the nominal voltage selected by a user. Various safeguards are built into the battery charger to avoid overcharging a battery. For battery chargers with user selectable nominal battery voltage charging modes, battery charger is configured to over-ride a user selected battery voltage mode if it detects that the battery connected to the battery charger terminals is different than the user selected charging mode. | 2011-01-20 |
20110012562 | LOW TEMPERATURE CHARGING OF LI-ION CELLS - A battery cell charging system, including a charger and a controller, for low-temperature (below about zero degrees Celsius) charging a lithium ion battery cell, the battery cell charging system includes: a circuit for charging the battery cell using an adjustable voltage charging-profile to apply a charging voltage and a charging current to the battery cell wherein the adjustable voltage charging-profile having: a non-low-temperature charging stage for charging the battery cell using a charging profile adapted for battery cell temperatures above about zero degrees Celsius; and a low-temperature charging stage with a variable low-temperature stage charging current that decreases responsive to a battery cell temperature falling below zero degrees Celsius. | 2011-01-20 |
20110012563 | FAST CHARGING OF BATTERY USING ADJUSTABLE VOLTAGE CONTROL - A battery cell charger for rapidly charging a lithium ion battery cell (or string of series-parallel connected cells) having a maximum battery cell voltage the battery cell charging system including: a circuit for charging the battery cell using an adjustable voltage charging-profile to apply a charging voltage and a charging current to the battery cell wherein the adjustable voltage charging-profile includes: a first charging stage with a constant first stage charging current and an increasing battery cell voltage with the first stage charging current provided until the first stage charging voltage is about equal to a first stage complete voltage less than the maximum battery cell voltage; one or more intermediate charging stages, each intermediate stage selected from the group consisting of one or more of an intermediate constant voltage stage that provides a decreasing charging current, an intermediate constant current stage that produces an increasing battery cell voltage, and combinations thereof; and a final charging stage with a constant final stage charging voltage about equal to an intermediate stage complete voltage and a decreasing final stage charging current with the final stage charging voltage provided until the final stage charging current reaches a desired charge complete level. | 2011-01-20 |
20110012564 | DC POWER TOOL WITH A SAFETY DETECTION DEVICE - A DC power tool having an interiorly provided lithium battery element and a charging switch includes a safety protection module to eliminate the risk of circuitry burn-out and other dangers resulting from connecting the power tool to a power supply with unmatched rated voltage and rated current when charging the power tool via use of an adapter. | 2011-01-20 |
20110012565 | CHARGING CIRCUIT WITH APPLICATION SYSTEM THEREOF - A charging circuit with an application system thereof provides an error amplifier to control a transistor switch for controlling the charging power source to charges the battery. When the voltage difference between the power source and load terminals of the transistor switch drops along with the transistor switch being turned on, the output voltage of the error amplifier changes as well to increase the turning-on resistance of the transistor switch such that the voltage difference between the power source and load terminals is capable of maintaining at a value above a certain reference level for avoiding the unstable state resulting from the charging circuit being turned on and off frequently. | 2011-01-20 |
20110012566 | CHARGING DEVICE, IMAGE FORMING APPARATUS, AND COMPUTER PROGRAM PRODUCT - An charging device includes: capacitors connected in series; a charging unit that charges the capacitors; bypass units, each respectively connects in parallel to each capacitors, wherein each bypass unit causes, when a charged voltage of any capacitor has reached a set voltage, a charging current to bypass the capacitor whose charged voltage has reached the set voltage; and a control unit that controls the charging unit to charge the capacitors in such a manner that, when a charging voltage of the any capacitor has reached the set voltage, the control unit causes the charging unit to reduce the charging current, and if a predetermined period has elapsed since the charging voltage has reached the set voltage, and if a charging voltage of any of the other capacitors has not reached the set voltage after the predetermined period, the control unit causes the charging unit to increase the charging current. | 2011-01-20 |
20110012567 | CIRCUIT ARRANGEMENT AND METHOD FOR DETECTING A CHARGE - A circuit arrangement that has an energy source that can provide a charging voltage for charging an electrical energy storage unit in a charging circuit when it is connected to an energy supply, wherein it is possible to represent the charging voltage using an alternating quantity, and that has a capacitor circuit having a first capacitor element, a first valve element, and the energy source, wherein the first capacitor element is charged by the energy source via the first valve element if the charging voltage is negative, so that, if the charging voltage is positive, the voltage over the first capacitor element has the same orientation in the capacitor circuit, in terms of sign, as the charging voltage, and the voltage over the capacitor element. | 2011-01-20 |
20110012568 | CONTROL UNIT AND METHOD FOR ACTIVATING PERSONAL PROTECTION DEVICES - A control unit and a method for triggering personal protection devices are proposed, which charge an energy reservoir for the control unit via a charging circuit. The charging circuit sets a charging rate for charging as a function of a signal generated outside the charging surface. | 2011-01-20 |
20110012569 | POWER DEVICE OF CLEAN REMOCON - Provided is a power device of a clean remote control that is designed to instantly and fully charge voltage required for driving the clean remote by supplying a commercial alternating current power using a super capacitor as a voltage storage unit. The clean remote control includes a key matrix, a controller, and a transceiver. The electric device includes a plug connected to a socket outlet supplying a commercial alternating current power, a rectification/constant-voltage unit for converting the commercial alternating current voltage supplied from the plug into a direct current voltage by rectifying the commercial alternating current power and for constantly maintaining the direct current voltage, a charging unit that is instantly and fully charged with the direct current voltage supplied from the rectification/constant-voltage, a controller for controlling an instant charge of the charging unit, and an over-voltage protection unit for preventing an excessive charge/discharge of the charging unit by monitoring the charging unit. | 2011-01-20 |
20110012570 | Synchronous driver circuit and integrated circuit for use therein - The present invention discloses a synchronous driver circuit, comprising: an inductor having one end coupled to an input voltage; a first power transistor having one end coupled to the other end of the inductor and another end supplying an output voltage; a second power transistor having one end coupled to the other end of the inductor and another end coupled to ground; a control circuit for controlling the operation of the first and second power transistors; a gate driver coupled to the control circuit and having an output controlling the gate of the first power transistor; and a bootstrap capacitor having one end coupled to a voltage node and the other end coupled to the other end of the inductor, the voltage across the bootstrap capacitor being provided as the operational voltage of the gate driver. | 2011-01-20 |
20110012571 | LOAD DRIVING APPARATUS - A load driving apparatus is provided. The load driving apparatus is configured to output an electrical signal to a load. The load driving apparatus includes a driver and an average voltage/current detector. The driver receives an input voltage and a control signal. The driver tunes the electrical signal according to the control signal. The average voltage/current detector receives the electrical signal outputted to the load and generates the control signal by comparing the electrical signal and a reference signal. | 2011-01-20 |
20110012572 | HEAT-EXCHANGE COOLING DEVICE AND POWER SUPPLY CIRCUIT DRIVER USED THEREFORE - A heat exchange cooler capable of eliminating continuous radiation of high-frequency noise waves and reducing the man hour for the installation work, and a power circuit driving device used for it are provided. A commercial power transformer ( | 2011-01-20 |
20110012573 | POWER SUPPLY CIRCUIT - A power supply circuit includes a voltage regulating module; a voltage selecting circuit and a voltage regulating chip. The voltage regulating module outputs corresponding control signals according to a type of a CPU installed on a motherboard. The voltage selecting circuit receives the control signals and converts the corresponding control signal to a voltage selecting signal. The voltage regulating chip receives the voltage selecting signal and outputs the corresponding working voltage to the CPU. | 2011-01-20 |
20110012574 | INTERLEAVED/ALL-PHASE MODE SWITCHED PWM SYSTEM - A multi-phase power switching converter having first and second states includes a pulse width modulator having an output, a converter output providing an output signal, and a plurality of drivers, each having an output electrically coupled to the converter output and an input. When the converter is in the first state where a duty cycle of the converter is less than or equal to 100 divided by the number of drivers, each of the driver inputs is configured to be sequentially electrically coupled to the pulse width modulator output. When the converter is in the second state where the duty cycle of the converter is greater than 100 divided by the number of drivers, each of the driver inputs is simultaneously electrically coupled to the pulse width modulator output. | 2011-01-20 |
20110012575 | DC TO DC SWITCHING POWER CONVERTER CONTROLLER USING SPREAD SPECTRUM PWM - A switching power converter converts an input DC voltage to an output DC voltage using a switch to selectively connect an input DC voltage energy source. A switching controller controls the switch. A pulse width modulation centering signal is generated by a spread spectrum clock signal generator. An error amplifier of the switching controller generates an analog error signal based on a switching voltage measured after the switching of the switching power converter, the output voltage of the switching power converter, the pulse width modulation centering signal and a reference. A pulse width modulated signal generator generates the pulse width modulation signal to control the switch of the switching power converter based on the pulse width modulation centering signal and the analog error signal. | 2011-01-20 |
20110012576 | POWER SUPPLY CIRCUIT AND RECEIVING APPARATUS - A power supply circuit includes: a DC-to-DC converter outputting a first voltage dropped from an input supply voltage; and a series regulator outputting a second voltage dropped from an output of the DC-to-DC converter, the series regulator including: an output transistor supplied with the output of the DC-to-DC converter and outputting the second voltage, and a first control circuit operated by the input supply voltage and controlling the output transistor. | 2011-01-20 |
20110012577 | Power converting system with function of reducing dead-time - A driving circuit includes a dead-time detecting circuit, a duty-cycle controlling circuit, and a switch controlling circuit. The dead-time detecting circuit is coupled to an output of a power switch set for detecting a switching voltage on the output of the power switch set and accordingly outputting a dead-time detecting signal. The output of the power switch set is coupled to the first end of an inductive load, and the second end of the inductive load provides an output voltage. The duty-cycle controlling circuit is coupled to the second end of the inductive load for generating a set/reset signal according to the output voltage. The switch controlling circuit controls the power switch set to be away from a dead state according to the set/reset signal and the dead-time detecting signal. | 2011-01-20 |
20110012578 | DC-DC CONVERTER CONTROLLER HAVING OPTIMIZED LOAD TRANSIENT RESPONSE - In one embodiment, a power supply controller is configured to turn off a first output transistor but inhibit turning off a second output transistor. | 2011-01-20 |
20110012579 | POWER CONVERTER, DEVICE AND METHOD FOR INTERLEAVING CONTROLLING POWER FACTOR CORRECTION CIRCUITS - A Power Converter, a device, and a method for interleaving controlling Power Factor Correction (PFC) circuits are disclosed. The Power Converter includes a first bridge arm unit, a second bridge arm unit, and a capacitor. The upper side of the first bridge arm unit and the upper side of the second bridge arm unit are connected with the first end of the capacitor, and the lower side of the first bridge arm unit and the lower side of the second bridge arm unit are connected with the second end of the capacitor. The first bridge arm unit includes two diodes or switches series-connected in the same direction, and the joint of the two diodes or switches is connected with the first end of the power supply. The second bridge arm unit includes two switches series-connected in the same direction and one inductor, and the first end of the inductor is connected with the joint of the two switches, while the second end of the inductor is connected with the second end of the power supply. Thus, the utilization of the inductor is improved. | 2011-01-20 |
20110012580 | Electronic Leakage Reduction Techniques - Electronic leakage reduction techniques are provided, whereby an electrical outlet with a programmable computing unit is programmed to detect the current, resistance, power or pattern of current, resistance or power of an attached appliance in the on position and/or off position. Among other aspects, the electrical outlet with a programmable computing unit delivers a selected voltage below the original operational voltage and/or delivers voltage at particular durations for particular intervals to the appliance in the off position and compares detected current, resistance, power or pattern of current, resistance or power to programmed levels associated with the appliance in the on position and/or off position. If any or some of those characteristics match those programmed associated with the appliance in the on position, or fail to match those programmed associated with the off position by a set confidence interval, original operational voltage is provided to the appliance. | 2011-01-20 |
20110012581 | BANDGAP CIRCUIT HAVING A ZERO TEMPERATURE COEFFICIENT - A bandgap circuit is provided, which includes a current source, a voltage boost circuit, a voltage input circuit, a voltage equalizer circuit, and a voltage output circuit. The current source provides a first current, a second current, and a third current, which are equal to one another. The voltage boost circuit provides a boost voltage by a single current path. The voltage input circuit receives the first and the second currents, and provides a first input voltage and a second input voltage based on the boost voltage. The voltage equalizer circuit receives the first and the second input voltages and equalize the two input voltages. The voltage output circuit provides a bandgap reference voltage according to the third current. | 2011-01-20 |
20110012582 | LOW-PASS FILTER, CONSTANT VOLTAGE CIRCUIT, AND SEMICONDUCTOR INTEGRATED CIRCUIT INCLUDING SAME - A low-pass filter that filters an input signal input to a filter input terminal to output a filtered output signal to a filter output terminal includes a capacitor, a first field-effect transistor, a first resistor, and a first current source. The capacitor is connected between the filter output terminal and ground. The first field-effect transistor has a gate terminal, a first conduction terminal connected to the filter input terminal, and a second conduction terminal connected to the filter output terminal. The first resistor is connected between the gate and first conduction terminals of the first transistor. The first current source is connected to the first resistor to supply a first current to the first resistor. The first resistor generates a first voltage thereacross based on the supplied first current for electrically biasing the gate terminal of the first transistor. | 2011-01-20 |
20110012583 | Use pairs of transformers to increase transmission line voltage - A smart link in a power delivery system includes an insulator, which electrically isolates a power line, and a switchable conductance placed in parallel with the insulator. The switchable conductance includes switchgear for sourcing, sinking, and/or dispatching real and/or reactive power on the power line to dynamically in response to dynamic loading, transient voltages and/or currents, and phase conditions or other conditions on the power line. | 2011-01-20 |
20110012584 | SAFETY DEVICE, PARTICULARLY FOR HOUSEHOLD APPLIANCES - The invention relates to a safety system for detecting the presence of living beings inside a lockable, or alternatively dangerous housing area, particularly the washing housing area of a washing machine or of a clothes dryer, of a stove, of a microwave oven, as well as particularly also in closets and chests. According to a first aspect of the present invention the aim at the beginning is solved by means of a safety device for detecting the presence of living beings inside a dangerous housing area with a first electrode device which, as such, is facing the housing area and is a component of a LC network, and a second electrode device which is also facing the housing area and is a component of a LC network, and an evaluation circuit for detecting the dynamics of electric field interactions with at least one of the two electrode devices in which the detected dynamics is compared with the comparison values provided for the current working condition of the housing area, so that, if the detected dynamics differs from the provided comparison values, a safety function is activated. | 2011-01-20 |
20110012585 | APPROACH FOR CONTROLLING PARTICULATE MATTER IN AN ENGINE - A method of operating a diesel engine and an emission control system including a diesel particulate filter comprising of The inventors herein have realized that accurate particulate matter information for controlling processes and parameters may be realized by a method for operating an engine comprising of correlating a measured property associated with a carbon nanostructure layer to an amount of particulate matter from an exhaust stream of the engine, wherein the carbon nanostructure includes a plurality of carbon nanostructures, and adjusting engine operation based on the amount of particulate matter. | 2011-01-20 |
20110012586 | METHOD FOR DETECTING, IDENTIFYING AND LOCATING PARTIAL DISCHARGES OCCURRING IN A DISCHARGE SITE ALONG AN ELECTRIC APPARATUS - A method for detecting, identifying and locating partial discharges occurring in a discharge site along an electric apparatus comprises the following steps: detecting (1) electrical signals in a detection station; attributing (2) to each detected signal a value of a phase parameter; deriving (3) for each signal at least one shape parameter and one amplitude parameter; separating (4) the set of signals detected into sub | 2011-01-20 |
20110012587 | CLAMP-ON MULTIMETERS INCLUDING A ROGOWSKI COIL FOR MEASURING ALTERNATING CURRENT IN A CONDUCTOR - A clamp-on multimeter measures alternating current flow in an electrical conductor. The multimeter includes a display, a housing including the display, a first sensor, a second sensor, a processor and an integrator. The first sensor has a magnetizable material core and inductively senses the alternating current. The first sensor includes a first clamp portion fixed to the housing and a second clamp portion pivotally coupled to the first clamp portion. The second sensor includes a Rogowski coil that has a non-magnetic core and inductively senses the alternating current. The processor receives an input signal in a first voltage range and sends an output signal to the digital display. The integrator scales a signal from the second sensor in a second voltage range to the first voltage range. The housing includes the processor, the integrator, and a selector configured to select the input signal to the processor from one of the first sensor and the integrator. | 2011-01-20 |
20110012588 | Wide-Dynamic Range Electrometer with a Fast Response - A method and apparatus for measuring current includes sensing a first voltage at the output of an amplifier and computing a current based on the first voltage and the resistance of a first resistive element, which is electrically coupled between an inverting input of the amplifier and the output of the amplifier, if the first voltage is below a predetermined level. The method also includes sensing a second voltage at the output of a buffer and computing a current based on the first and second voltages and the resistances of the first resistive element and a second resistive element, which is electrically coupled between the inverting input of the amplifier and an input of the buffer and is also electrically coupled to the output of the amplifier through a at least one diode, if the voltage output from the amplifier is above the predetermined level. | 2011-01-20 |
20110012589 | CLAMP-ON MULTIMETERS INCLUDING A ROGOWSKI COIL FOR MEASURING ALTERNATING CURRENT IN A CONDUCTOR - A clamp-on multimeter measures alternating current flow in an electrical conductor. The multimeter includes a display, a housing including the display, a first sensor, a second sensor, a processor and an integrator. The first sensor has a magnetizable material core and inductively senses the alternating current. The first sensor includes a first clamp portion fixed to the housing and a second clamp portion pivotally coupled to the first clamp portion. The second sensor includes a Rogowski coil that has a non-magnetic core and inductively senses the alternating current. The processor receives an input signal in a first voltage range and sends an output signal to the digital display. The integrator scales a signal from the second sensor in a second voltage range to the first voltage range. The housing includes the processor, the integrator, and a selector configured to select the input signal to the processor from one of the first sensor and the integrator. | 2011-01-20 |
20110012590 | CURRENT DETECTOR AND WATTMETER USING THE SAME - A current detector includes a plate conductor ( | 2011-01-20 |
20110012591 | ANGLE MEASURING SYSTEM - An angle measuring system includes a first component group and a second component group, the first component group being mounted so as to be rotatable relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a sensor for scanning the angle scaling as well as a printed circuit board having an electronic circuit for evaluating sensor signals producible by the scanning. The second component group furthermore includes a solid ring, on which another running surface is situated and which has a first recess for accommodating the circuit board and a second recess for accommodating an electrical conductor. The conductor connects the sensor electrically to the electronic circuit situated at a distance from the sensor. | 2011-01-20 |
20110012592 | MAGNETIC FLUX OIL LEVEL SENSOR FOR USE IN AIRCRAFT LUBRICATION SYSTEMS - A magnetic flux position sensor includes a primary coil, a secondary coil, and a magnetic flux conductor. The primary coil generates a magnetic flux and the secondary coil senses magnetic flux. The primary and secondary coils are substantially concentric and spaced apart by an annular passage. The annular passage has first and second ends, and the magnetic flux conductor is slidable from the first end to the second end of the annular passage. The magnetic flux transferred from the primary coil to the secondary coil varies as a function of position of the magnetic flux conductor. | 2011-01-20 |
20110012593 | METHOD AND APPARATUS FOR SHIELDING A LINEAR ACCELERATOR AND A MAGNETIC RESONANCE IMAGING DEVICE FROM EACH OTHER - A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac. | 2011-01-20 |
20110012594 | POSITION DETECTING SYSTEM AND POSITION DETECTING METHOD - A system includes a body-insertable apparatus disposed while introduced in a subject in a detection space, and an external apparatus disposed on the outside of the subject. The body-insertable apparatus includes a first switch for connecting/interrupting a resonance circuit and an oscillation circuit or a ground line. The external apparatus includes a drive coil driving unit for outputting a drive signal having the resonance frequency; a drive coil for generating the drive magnetic field in the detection space in accordance with the drive signal; and a second switch for connecting/interrupting the drive coil driving unit and the drive coil. The second switch connects the drive coil driving unit and the drive coil when the first switch is off, and disconnects them when the first switch is on. The resonance circuit generates the resonance magnetic field in accordance with the induction signal or the drive magnetic field. | 2011-01-20 |
20110012595 | METHOD AND MAGNETIC RESONANCE SYSTEM TO DETERMINE THE STRENGTH OF A MAGNETIC INTERFERENCE FIELD - In a method and magnetic resonance system to determine the strength of a magnetic interference field that is caused by an interference object in a magnetic resonance image data acquisition, the interference object having a magnetic susceptibility that differs from the magnetic susceptibility of the material that surrounds the interference object image data acquired with the imaging magnetic resonance measurement that depict an examination subject that contains the interference object are made available in a form that allows the determination of at least one geometric variable of an image artifact in the image data that was caused by the magnetic interference field. The strength of the magnetic interference field that is caused by the interference object is then determined on the basis of the determined geometric variable of the image artifact. | 2011-01-20 |
20110012596 | Magnetic Resonance System and Method To Detect and Confirm Analytes - A system and method are provided to detect target analytes based on magnetic resonance measurements. Magnetic structures produce distinct magnetic field regions having a size comparable to the analyte. When the analyte is bound in those regions, magnetic resonance signals from the sample are changed, leading to detection of the analyte. | 2011-01-20 |
20110012597 | FASTENER-LESS EDGE LAUNCH CONNECTOR FOR MR-COMPATIBLE MEDICAL MONITORING - A robust MR compatible ECG monitor ( | 2011-01-20 |
20110012598 | MR COILS WITH AN ACTIVE ELECTRONIC COMPONENT HAVING AN INDIRECT POWER CONNECTION - A radio frequency coil comprises: a coil unit ( | 2011-01-20 |
20110012599 | CRYOGENICALLY COOLED SUPERCONDUCTOR GRADIENT COIL MODULE FOR MAGNETIC RESONANCE IMAGING - Methods and/or apparatuses for magnetic resonance imaging (MRI) and/or magnetic resonance spectroscopy comprising a superconducting gradient coil module configured for cryogenic cooling. Such a superconducting gradient coil module may comprise a vacuum thermal isolation housing comprising a double wall hermetically sealed jacket that (i) encloses a hermetically sealed interior space having a first vacuum pressure, and (ii) substantially encloses a vacuum space having a second vacuum pressure; at least one superconductor gradient coil disposed in the vacuum space; a thermal sink member disposed in the vacuum space and in thermal contact with the at least one superconductor gradient coil; and a port configured for cryogenically cooling at least the thermal sink member. | 2011-01-20 |
20110012600 | ELECTROMAGNETIC ANTENNA AND METHOD OF USE FOR DETECTING OBJECTS - Disclosed herein are systems and methods of detecting objects. In particular, a transmitter antenna is disclosed comprising one or more coils. Alternating current may be run through the one or more coils of the antenna to create an electro-magnetic field (“EMF”) which will, in turn, induce an alternating current in objects near the EMF(s). As a result of the induced alternating current in the hidden object, a second EMF is generated around the hidden object which may be detected by a receiver, indicating the location of the hidden object. The transmitter antenna may be elongated and flexible to permit deploying the antenna in a configuration facilitating location of all utilities in an area of investigation with little or no relocation of the antenna. | 2011-01-20 |
20110012601 | Method for determining resistivity anisotropy from earth electromagnetic tansient step response and electromagnetic transient peak impulse response - A method for determining resistivity anisotropy of subsurface rock formations includes imparting a transient electromagnetic field into the subsurface rock formations. Electromagnetic response of the formations is measured at a plurality of offsets from a position of the imparting. For each offset, an arrival time from the imparting is determined of a peak of an impulse response such that the response is related to subsurface horizontal and vertical resistivities. For each offset, a step response of the formations is determined at a time from the imparting selected such that the step response is related substantially only to mean resistivity. The arrival time of the peak of the impulse response and the late time value of the step response are used to determine the resistivity anisotropy. | 2011-01-20 |
20110012602 | Cancellation of Vibration Noise in Deep Transient Resistivity Measurements While Drilling - A transient electromagnetic (TEM) signal is recorded in an earth formation during vibration of a logging tool. Concurrently, accelerometer measurements are made. The accelerometer measurements are used to correct the TEM signal for the vibration using the accelerometer measurement and a transfer function relating the TEM signal and the accelerometer. The transfer function may be determined using measurements in a water tank or by using the tail end of the TEM measurements. | 2011-01-20 |
20110012603 | PROTECTIVE RELAY MONITORING SYSTEM AND METHOD OF COMPARING BEHAVIOR PATTERNS - A system for collecting data and monitoring the operation of electrical circuits, such as branch circuits at a substation is provided. The system collects data from a plurality of sensors coupled to a plurality of electrical equipment associated with a circuit. The data from the sensors is collected and used to identify signatures in the data to ascertain potential issues in the electrical protective circuit. The data is further analyzed to determine signatures of abnormal operating conditions. The signatures are compared to reference signatures to identify the abnormal conditions and corrective action is initiated. | 2011-01-20 |
20110012604 | SECONDARY BATTERY SYSTEM - Provided is a secondary battery system which can accurately detect a state of a secondary battery system (such as a secondary battery state and a secondary battery system failure). The secondary battery system ( | 2011-01-20 |
20110012605 | CURRENT BASED OVERVOLTAGE AND UNDERVOLTAGE DETECTOR - With batteries or cells, particularly lithium ion cells, it is important to determine when one or more cells have entered a fault condition (i.e., overvoltage or undervoltage). Conventional circuits employ measuring circuits that use multiple bandgap circuits and high voltage components. These conventional circuits, however, consume a great deal of area because of the use of these multiple bandgap circuits and the high voltage components. Here, a circuit is provided that reduces the number of bandgap circuits and reduces the number of high voltage components, reducing the area consumed and reducing the overall cost of production compared to conventional circuits. | 2011-01-20 |
20110012606 | INSULATION STATE DETECTOR - An insulation state detector detects an insulation state with respect to a ground potential portion of a DC power source on the basis of a charging voltage of a flying capacitor. The insulation state connector includes a detecting section that detects the insulation state of the DC power source by defining the charging voltage of the flying capacitor in the ground fault state as a charging voltage, in an unbalanced state where voltages across both ends of the positive-side Y capacitor and the negative-side Y capacitor are not equal to voltages obtained by dividing the voltage of the DC power source according to a voltage division ratio of the positive-side ground fault resistor and the negative-side ground fault resistor. | 2011-01-20 |
20110012607 | METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION - According to the features discussed herein, through a single generalized arc-fault detection algorithm, various types of series and/or parallel arc faults can be detected without any nuisance trip for either AC or DC Electric Power Systems. Running Discrete Fourier Series (RDFS) formulation for nuisance-free operation and cost-effective implementation is developed. Unlike other methods which require numerous source and load-side current and voltage measurements, only source side current is required. An arc detector may include a first detector to monitor variations of a magnitude of a fundamental component of a current, and a second detector to monitor an overload condition based in an i | 2011-01-20 |
20110012608 | System and Method for Enhanced Accuracy in Cable Diagnostics of Cable Length - A system and method for enhanced accuracy in cable diagnostics of cable length. Conventional cable diagnostics such as time domain reflectometry can be used to determine cable length. This conventional technique can have accuracy limitations in certain situation such as with perfectly terminated cable. A cable length can also be determined through the use of link delay measurements that are based on clock synchronization between nodes in a network. Notwithstanding the accuracy issues of these link delay measurements, overall accuracy can be increased through the combination of the two cable length delay measurements into a final estimate. | 2011-01-20 |
20110012609 | METHOD AND APPARTUS FOR SUB-ASSEMBLY ERROR DETECTION IN HIGH VOLTAGE ANALOG CIRCUITS AND PINS - The innovation relates to systems and/or methodologies for error detection during sub-assembly in high voltage analog circuits. A signal driver communicates test signals to one or more high voltage analog circuits, and a state machine compares the electrical and/or thermal responses of the high voltage analog circuits to a set of predetermined expected results (e.g., signatures). The signal driver and state machine can be incorporated into the high voltage analog circuits. The expected results can be stored in the target circuits in the form of look-up tables, matrices, and so forth. Errors, such as, dry solders and bridge solders can be determined based on the comparison of the obtained responses to the expected signatures. | 2011-01-20 |
20110012610 | TESTING DEVICE AND METHOD FOR SM MEMORY CONNECTOR - A testing device for testing surface-mounted (SM) memory connectors on a circuit board is provided. The testing device includes a main control circuit storing standard pin information of the SM memory connectors. A data collecting circuit is connected to the main control circuit and to at least one SM memory connector of the circuit board. A display unit is connected to the main control unit. The main control circuit directs the at least one data collecting circuit to read pin information of the SM memory connector and transmit the pin information to the main control circuit. The main control circuit manages the collected pin information in accordance with the standard pin information and shows the results on the display unit. | 2011-01-20 |
20110012611 | TESTING METHOD FOR ELECTRONIC APPARATUS - An electronic apparatus includes a first power contact, a second power contact, and a control unit. The first power contact is electrically connected with an anode of a power supply source, and the second power contact is electrically connected with a cathode of the power supply source. The control unit electrically connects the first power contact and the second power contact for forming a signal transmission path and receiving the power generated by the power supply source. When the control unit is operated in a testing mode, the control unit operates in a working mode or a sleeping mode according to an instruction of a default instruction set for changing a current waveform signal transmitted over the signal transmission path, so as to achieve the purpose of providing a convenient and high-efficiency testing. | 2011-01-20 |
20110012612 | TEST APPARATUS - There is provided a test apparatus for testing a device under test, including a signal supply section that supplies a test signal to the device under test via a transmission line, and a comparing and judging section that receives a response signal from the device under test via the transmission line shared with the signal supply section, and judges whether the device under test is acceptable by referring to a comparison result obtained by comparing a signal level of the response signal with a reference level corresponding to a logic pattern of the test signal. | 2011-01-20 |
20110012613 | Failure Detection Method and Failure Detection Apparatus - The present invention discloses a failure detection method and a failure detection apparatus for detecting a defect in an electrical conductor. The failure detection method includes: providing at least two output terminals on the electrical conductor under test, the at least two output terminals having identical electric potentials; inputting a constant detection current sequentially to detection points arranged on the electrical conductor under test along a predetermined path; detecting an output current at one or more output terminals of the at least two output terminals; building a correspondence relationship between the detected one or more output currents at the one or more output terminals and positions of the detection points, based on information of the positions of the detection points and information of the detected one or more output currents at the one or more output terminals; and determining from the correspondence relationship whether the detection points have a defect. The failure detection method according to the invention can precisely locate defects; and uses a charged particle beam as the detection current source to avoid the size limitation of irradiation points, thereby satisfying the requirement for failure analysis in a small size. | 2011-01-20 |
20110012614 | low voltage and intense current phase-controlled switching on equipment - The present invention relates to low voltage electrical equipment testing technique, more particularly, to a low voltage and intense current phase-controlled switching on equipment, comprising: a frame, at least an vacuum arc extinguish chamber, at least a permanent magnet control device and at least a intelligent phase choosing controlled module, with the vacuum arc extinguish chamber and the permanent magnet controlled device mounted on the frame, wherein the vacuum arc extinguish chamber comprises at least a movable contact and a isolated pull rods connected to the movable contact, and the permanent magnet controlled device comprises electromagnetic coils, movable iron cores and output shafts connected to the movable iron cores, and a transmission system is arranged to connect to the isolated pull rod and the output shaft, with the intelligent phase choosing controlled module electrically connected to the electromagnetic coils of the permanent magnet controlled device. | 2011-01-20 |
20110012615 | Systems and methods for assessing standoff capabilities of in-sevice power line insulators - An electrical power transmission system includes electrical insulators arranged to electrically isolate live power lines. Measurement devices are physically incorporated or integrated in the insulator structures. The measurement devices measure and report insulator properties during live wire conditions. | 2011-01-20 |
20110012616 | Systems and methods for assessing standoff capabilities of in-service power line insulators - An electrical power transmission system includes electrical insulators arranged to electrically isolate live power lines. Measurement devices are physically incorporated or integrated in the insulator structures. The measurement devices measure and report insulator properties during live wire conditions. | 2011-01-20 |