Abstract: Systems, devices, and methods for providing backup power to a load are disclosed. A power converter may comprise a capacitor array comprising a plurality of capacitors and configured to store a charge from an input during a charge mode of operation and provide a charge to an output during a discharge mode of operation. Further, the power converter may comprise a controller configured to selectively couple the capacitor array to the input during a portion of the charge mode of operation and selectively couple the capacitor array to the output during a portion of the discharge mode of operation.

Abstract: A system for controlling voltage on a distribution feeder includes a plurality of capacitor banks that can be connected to or disconnected from the distribution feeder. A first bank is configured to connect to the distribution feeder when a first voltage is below a first lower threshold value and to connect to the distribution feeder when the first voltage is above a first upper threshold value. The first upper threshold and first lower threshold are determined based off an operational set point. The system further includes a sensor configured to measure the first voltage and a controller in operable communication with the plurality of capacitor banks configured to determine the operational state of the first and second capacitor banks and, based on the first voltage, send a first instruction to the first capacitor bank, the first instruction causing the capacitor bank to vary the operational set point.

Abstract: A filter circuit according to the present invention includes a voltage-current conversion unit that converts a voltage signal input to an input end to a current signal, a capacitor group that is made up of a plurality of capacitors, where the current signal output from the voltage-current conversion unit is sequentially input to each capacitor at every cycle, a first switch that connects a set of capacitors to which the current signal is input with each other and adds charges accumulated in the set of capacitors together, and a second switch that connects at least one capacitor of the set of capacitors to an output end after charges are added by the first switch.

Abstract: To provide a fast charge means for a capacitor in a negative bias generation circuit. A capacitor is present in a down converter in a negative bias generation circuit. In order to perform fast charge, the capacitance of the capacitor is reduced and a necessary amount of charge is minimized. On the other hand, an external capacitance provided separately from the capacitor in the down converter is coupled directly to a power supply voltage and charged. After the capacitor in the down converter is charged, the external capacitance and the capacitor in the down converter are coupled in parallel. Due to this, it is made possible to aim at both the increase in charge speed and the improvement of resistance to ripple noise.

Abstract: A power conversion system may include a controller to cause a power stage to control the flow of power to or from an energy storage device in response to a dynamic reference. The flow of power to or from the energy storage device may be controlled at a substantially higher speed than power fluctuations in a power source or load. In a power conversion system, a model including an energy storage device may be generated in real-time, and a condition of the energy storage device may be determined in response to the model.

Abstract: A voltage booster system of a charge pump type includes a regulator for outputting a constant voltage and a charge pump circuit for boosting a voltage of an output terminal of the regulator. The regulator includes a differential amplifier unit for inputting a reference voltage and a feedback voltage according to the voltage of the output terminal, and an output stage portion including an PN connection element having one end portion connected to an application terminal of a power source voltage and another end portion connected to the output terminal. The PN connection element is configured to be controlled according to an output signal of the differential amplifier unit. The charge pump circuit includes a first capacitor to which the voltage of the output terminal is applied to be charged; a second capacitor; a third capacitor; a first switching section; and a second switching section.

Abstract: Systems and methods utilizing a capacitive charging power source for fluid treatment reactors are disclosed. In an example embodiment, a DC power source charges a capacitor circuit configured to store energy. A switching circuit with an input connected to the capacitor circuit has reversing polarity outputs which provide a pulsed discharge of energy at a frequency with an adjustable duty cycle. An inductive load may be connected to the reversing polarity outputs, and a fluid treatment reactor with at least two electrodes may be connected to the inductive load.

Abstract: An input circuit includes an interface structured to output a logic signal from an alternating current signal of a pair of elongated conductors. A load is switchable to the elongated conductors. A processor outputs a control signal to switch the load to the elongated conductors asynchronously with respect to the alternating current signal for a first predetermined time, inputs the logic signal, determines if the input logic signal is active a plurality of times during the first predetermined time and responsively sets a first state of the alternating current signal, and, otherwise, sets an opposite second state of the alternating current signal, and delays for a second predetermined time, which is longer than the first predetermined time, for the opposite second state before repeating the output, and, otherwise, delays for a third predetermined time, which is longer than the second predetermined time, for the first state before repeating the output.

Abstract: A semiconductor integrated circuit has a rectifying circuit, a switched capacitor, a switched-capacitor drive circuit, a demodulator, and an internal circuit. The switched capacitor executes series charging and parallel discharging to/from a plurality of capacitors using an output rectified voltage. When the current driving performance at the time of supplying a power source voltage is set to a high state, so that a receiving operation in a card is executed reliably even at a long communication distance. Transmission signal data from a card is supplied to a switched-capacitor current driving performance increase disable circuit, and the current driving performance at the time of supplying the power source voltage in the switched capacitor is changed to be low. The change is detected as a magnetic field change in an antenna by an apparatus.

Abstract: The invention provides a method for improving operation lifetime of a capacitor module in an electronic circuit employing the capacitor module, comprising the steps of providing two or more capacitor modules of same configuration; and controlling alternately a respective one of the capacitor modules to operate in the electronic circuit for a first predetermined period of time. The invention also relates to a capacitor control circuit structure for use in a location of an electronic circuit previously occupied by an original capacitor module, and the capacitor control circuit structure exhibits the extended operation lifetime with respect to the original capacitor module. The invention also relates to the use of the capacitor control circuit structure in the electronic applications.

Abstract: A structure having a plurality serially coupled variable capacitors, each one of the variable capacitors having a pair of plates, one of the plates being electrostatically moveable relative to the other one of the plates, to provide each one of the variable capacitors with a variable capacitance; and a transmission line. A first one of the variable capacitors has a first one of the one plates thereof coupled between and input and output of the transmission line and a second one of the plates thereof serially coupled to a first one of the plates of a second one of the variable capacitors.

Abstract: A power-transmission-unit-side resonant circuit includes a resonant capacitor connected in series with a power transmission coil and a power-reception-unit-side resonant circuit including a resonant capacitor connected in series with a power reception coil resonate with each other to cause sympathetic vibration. This allows power to be transferred using two kinds of coupling via the magnetic field and the electric field between the power transmission coil and the power reception coil. Also, operation is performed at a switching frequency that is higher than a specific resonant frequency of the entire multi-resonant circuit, such that a ZVS operation is performed. As a result, a switching loss is reduced by a large amount and a highly efficient operation is performed thus enabling a power transfer system with a reduced size and an increased power conversion efficiency to be provided.

Abstract: A power over one-pair Ethernet approach. A data transformer is coupled to a single conductor pair using one or more direct current (DC) blocking elements that preserve an alternating current path. The data transformer enables a network device to transmit and receive data with a link partner device via the single conductor pair. Power transmission over the single conductor pair is enabled through the coupling of a power over Ethernet module to the single conductor pair using a diode that can be paired with a zener diode.

Abstract: A circuit includes a level-crossing detector to generate a level-crossing detection signal when an input signal crosses a predetermined voltage level. A first stage set of capacitors is operatively coupled to the level-crossing detector. A ramp circuit is operatively coupled to the set of series-connected capacitors. A second stage set of capacitors is operatively coupled to the first stage set of capacitors and the ramp circuit. The ramp circuit includes a feedback capacitor and a preset switch to provide a linear ramp output.

Abstract: A technique for preventing power interruptions and extending backup power life is provided. The technique automatically prevents power interruptions in a line between a power source and a load. The technique can also extend the operating life of the power source. In one embodiment, a circuit for preventing power interruptions is provided. The circuit may include at least one arrays of capacitors, with the capacitors being arranged in parallel within an array, at least one switching elements configured to couple the at least one array of capacitors to a load, and a controller operatively coupled to the at least one switching element. The controller is configured to selectively drive the at least one switching element based on predetermined criteria.

Abstract: A proximity switch assembly and method for detecting activation of a proximity switch assembly and calibrating the switch assembly. The assembly includes proximity switches each having a proximity sensor providing a sense activation field and control circuitry processing the activation field to sense activation. The control circuitry generates an activation output when a differential change in the signal exceeds a threshold and distinguishes an activation from an exploration of the plurality of switches. The control circuit further determines a rate of change and generates an output when the rate of change exceeds a threshold rate to enable activation of a switch and performs a calibration of the signals to reduce effects caused by changes in condensation.

Abstract: A proximity switch assembly and method for detecting activation of a proximity switch assembly is provided. The assembly includes a plurality of proximity switches each having a proximity sensor providing a sense activation field and control circuitry processing the activation field of each proximity switch to sense activation. The control circuitry monitors the signal responsive to the activation field and determines a differential change in generated signal, and further generates an activation output when the differential signal exceeds a threshold. The control circuitry further distinguishes an activation from an exploration of the plurality of switches and may determine activation upon detection of a stable signal.

Abstract: The semiconductor device includes a capacitance element connected to a first power-supply line via a first switch element, and to a second power-supply line via a second switch element; and a control circuit that controls the first and second switch elements. The control circuit turns the first switch element ON during a first period (voltage is supplied only to the first power-supply line), while turning the second switch element ON during a second period (voltage is supplied to both the first and second power-supply lines).

Abstract: 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.

Abstract: There is provided a radio-frequency module and a radio communication system capable of supporting multiple bands at low cost or small size. A high-frequency power amplifier device includes a power amplifier circuit unit for GSM and a control circuit outputting antenna switch control signals with a VSW1 level or a VSW2 level in response to a mode setting signal for selecting GSM or W-CDMA. The VSW2 level is generated by boosting the VSW1 level using a clock signal from an oscillation circuit. When GSM is selected by the mode setting signal, the high-frequency power amplifier device stops the oscillation circuit and outputs the antenna switch control signals of the VSW1 level to an antenna switch device. When W-CDMA is selected by the mode setting signal, the high-frequency power amplifier device outputs the antenna switch control signals of the VSW2 level to the antenna switch device, using the oscillation circuit.

Abstract: In embodiments of a dynamic impedance circuit, a power circuit of a device charges and/or powers the device when the device is connected to a power source. A dynamic impedance circuit is coupled to the power circuit of the device and to the power source. The dynamic impedance circuit can operate with low impedance, and alternatively, can operate with high impedance responsive to an increased voltage across the dynamic impedance circuit, such as when a chassis of the device is coupled to ground.

Abstract: A power transmission system and a power receiving jacket is provided that enhances the transmission efficiency of electric power with a simple structure and without increasing manufacturing costs. The power transmission system includes a power transmitting device having a first passive electrode, a first active electrode whose potential is higher than the first passive electrode, and a voltage generation circuit connected between the first passive electrode and the first active electrode, a power receiving jacket having a second active electrode and a power receiving circuit module connected to the second active electrode, and an electronic device attachable to the power receiving jacket. The electronic device includes a chassis having a conductive portion formed from a conductive material along a surface facing the first passive electrode, and the power receiving circuit module is electrically connected between the conductive portion and the second active electrode.

Abstract: This invention relates is a Hall effect transformer, which include: Hall effect device, insulation layer and semiconductor, place the insulator layer between the Hall effect device and semiconductor used as an isolated, when AC current flow through the AC capacitors and Hall effect device, semiconductor corresponds to get both terminals of the AC voltage, and AC power transmission purposes.

Abstract: An apparatus and method for mounting additional components, such as capacitors, to a DC bus of a motor drive. In one aspect, a motor drive includes an enclosure defining an interior, an input for receiving input electrical power from a power source, an output for providing output electrical power to a load, an intermediate DC circuit including a DC bus located in the interior of the enclosure, and a modular capacitor bus electrically coupled with the intermediate DC circuit, the modular capacitor bus including at least one capacitor mounted thereto. The modular capacitor bus is mountable as a unit to the DC bus.

Abstract: Embodiments of the present invention include techniques for regulating discharge of a capacitor. In one embodiment, the circuit may be used to store power on a capacitor and regulate the discharge of the capacitor to power a load, such as system electronics, circuitry, or electronic devices. In one embodiment, a first capacitor is charged from a power source and stores energy for powering an electronic device. A second capacitor is coupled to the electronic device for providing power to the electronic device. Switched capacitors are configured to transfer charge from the first capacitor to the second capacitor. A control circuit controls switching of the switched capacitors in response to voltage on the first capacitor. The switching frequency may be increased as the voltage on the first capacitor decreases so that a steady flow of charge is provided across all capacitor voltage levels.

Abstract: A discharge control apparatus arranged in a power conversion system having high-side switching element and low-side switching element to convert the DC power from the battery to a predetermined type of power. The discharge control is performed to discharge a capacitor connected in parallel to the switching elements when an abnormal event occurs. The discharge control apparatus is configured to simulate the operation of the switching elements assuming occurrence of the abnormal event, and transmits a plurality of signals representing the simulation result to a control device via a common photocoupler that isolates the switching elements side and the control device side. The control device diagnoses whether or not a fault occurs in the discharge control or the like by the simulation result.

Abstract: The number of components can be reduced and the fittability can be improved so that reduction in the cost can be realized. A power feed connector for feeding power to a motor provided in an actuator includes: two motor current application terminals for applying a current to the motor; two capacitor contact portions; a capacitor for applying a current to the capacitor contact portions respectively; and a housing to which the two motor current application terminals, the two capacitor contact portions, and the capacitor are fitted, wherein each of the motor current application terminals includes an extension portion and a connection portion for applying a current to the motor, and wherein each of the capacitor contact portions protrudes from the extension portion.

Abstract: One aspect of the present invention is directed to a circuit that includes an amplifier circuit disposed between an isolation link and a Schmitt trigger circuit to amplify a differential signal communicated over the isolation link and supply the amplified signal to the Schmitt trigger circuit. In turn, the Schmitt trigger circuit is coupled to the amplifier circuit to receive the differential signal and to supply a differential output signal corresponding to the differential signal communicated over the isolation link.

Abstract: A variable capacitor is provided. The variable capacitor includes a plurality of capacitor segments. The plurality of capacitor segments are connected in parallel within the variable capacitor. When a plurality of candidate capacitances allowable to the variable capacitor according to a connection state of the plurality of capacitor segments connected in parallel are sorted in a magnitude sequence, the plurality of candidate capacitances form a geometric series. The variable capacitor is used for a Voltage Controlled Oscillator (VCO), and the VCO is used for a Phase Locked Loop (PLL).

Abstract: An electric power transmission system that includes a power receiving device having a first coupling electrode and a power transmission device having a second coupling electrode, both the devices being coupled via an electrostatic field, and the power transmission device configured to transmit electric power to the power receiving device in a noncontact state. The power transmission device includes a third coupling electrode that is disposed at a distance from the second coupling electrode. The third coupling electrode has a potential higher than that of the second passive electrode and lower than that of the second active electrode.

Abstract: An RFID transponder in one embodiment comprises a radio frequency (RF) transceiver, processing logic coupled to the RF transceiver, a switch coupled to the processing logic, a tunneling device coupled to the switch and a differential sensing circuit having a first input coupled to the tunneling device and a second input coupled to a predetermined reference voltage. In one embodiment, the tunneling device can discharge to a voltage below the predetermined reference voltage.

Abstract: A method for operating a switching device and a device for use with the method are provided. In at least one embodiment, an energy storage medium provided for EMC considerations, in particular a capacitor, is energized in a controlled fashion through short-term activation of a switching element even after the respective connected user is turned off, the energy storage medium being thereby discharged.

Abstract: A switch circuit comprising: a plurality of switches; a switching module; and a capacitor, having a first terminal and a second terminal, wherein the first terminal is coupled to a predetermined voltage, and the second terminal is coupled to a control terminal of at least the switch in a conductive mode via the switching module, to thereby control a conductive state for the at least one switch.

Abstract: A load device includes a power input having an interface to a power supply; a peripheral power bus including an internal capacitance, and an active switch coupled to the power input and the peripheral power bus for applying power from the power input to the peripheral power bus. The load device also includes a switch controller coupled to the active switch for regulating the in-rush current drawn by the internal capacitance through the active switch while the internal capacitance is being charged.

Abstract: A direct current (DC) to DC converter, including: input ports for receiving an input DC voltage; output ports for outputting an output DC voltage; a first matrix of capacitors and switches; a second matrix of capacitors and switches; and a control circuit, coupled to the switches of the first and second matrices, configure d to repetitively: (i) configure the first matrix to a charge configuration and couple the first matrix to the input ports while configuring the second matrix to a discharge configuration and coupling the second matrix to the output ports; (ii) maintain the charge and discharge configurations for a first period of time; (iii) configure the second matrix to the charge configuration and couple the second matrix to the input ports while configuring the first matrix to the discharge configuration and couple the first matrix to the output ports; and (iv) maintain the charge and discharge configurations for a second period of time; (a) wherein the charge configuration and the discharge configurat

Abstract: An embodiment of a tunable capacitor can include a plurality of capacitors connected in series where at least two capacitors of the plurality of capacitors share a common electrode where the at least two capacitors are in lateral proximity and a bias that is capable of being applied to the at least two capacitors whereby the at least two capacitors vibrate in opposite phase to each other when the bias and an RF signal is applied to the at least two capacitors.

Abstract: A microwave generator, which includes a housing having two mutually opposite electrodes which are separated via an electrode intermediate space which is filled with a dielectric, and with the electrodes having a spark gap between them, which breaks down in order to emit microwaves when a high voltage is applied. The electrode intermediate space (13, 13a, 13b) can be at least partially filled with a second dielectric (15, 15a, 15b), which has a different dielectric constant compared with that of the first dielectric (14, 14a, 14b) which is located between the electrodes (6, 7) in order to vary the microwave frequency, whereby the second dielectric (15, 15a, 15b) is held in a reservoir (17, 17a, 17b) which communicates with the electrode intermediate space (13, 13a, 13b).

Abstract: A discharge circuit for a DC power supply smoothing capacitor that is used in a power conversion device that supplies DC power via a switch to the DC power supply smoothing capacitor and an inverter, includes; a resistor that discharges charge in the capacitor; a switch connected in series with the resistor, that either passes or intercepts discharge current flowing from the capacitor to the resistor; a measurement circuit that measures a terminal voltage of the capacitor; and a control circuit that controls continuity and discontinuity of the switch; wherein the control circuit, after having made the switch continuous and starting discharge of the capacitor by the resistor, if a terminal voltage of the capacitor as measured by the measurement circuit exceeds a voltage decrease characteristic set in advance, makes the switch discontinuous and stops discharge by the resistor.

Abstract: 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.

Abstract: A power converter utilizes one or more nonlinear composite film capacitors constructed solely of polymer anti-ferroelectric (AFE) particle composites and configured as DC-link bus capacitors providing an energy buffer to reduce DC-link voltage ripple.

Abstract: Input/output power and signal transfer and power and signal isolator device using pulsed, alternating or high frequency signal current having a capacitive structure which provides power and signal limiting control, unidirectional power and signal transfer and input/output decoupling and transceiver-receiver isolation barrier. The device includes at least two decoupled input electrodes arranged in parallel to each other, and at least two decoupled output electrodes arranged in parallel to each other. Each electrode is connected to at least one terminal. Each electrode has a surface that which is opposed to another electrode surface with at least one layer of dielectric material therebetween. The input electrodes are decoupled from the output electrodes by dielectric material and are disposed such that two output electrodes are separately disposed external to the two input electrodes.

Abstract: A charge flow circuit for a time measurement, including a plurality of elementary capacitive elements electrically in series, each elementary capacitive element leaking through its dielectric space.

Abstract: A method of aligning a capacitive wireless power transmission system, the method comprises: providing a transmitter device having a capacitive conductor; positioning a receiver device having a capacitive conductor in proximity to the capacitive conductor of the transmitter device; and aligning the capacitive conductors of the transmitter device and the receiver device with one another using a display panel on the receiver device to optimize a transfer of power between the capacitive conductors.

Abstract: An intermediate layer of polyurethane containing an electrolyte in a high concentration can be produced with good productivity and an actuator element having high generative force is provided. An actuator has a pair of electrode layers and an intermediate layer disposed between the pair of electrode layers and containing an electrolyte and polyurethane, in which the actuator deforms when a voltage is applied between the electrode layers, the content of the electrolyte in the intermediate layer is 60 wt % or more and 300 wt % or lower based on the polyurethane, and the polyurethane is obtained by a reaction of at least a compound represented by General Formula (1) and a compound represented by General Formula (2).

Abstract: A method of aligning a wall conductor with an organic light emitting diode (OLED) panel conductor is disclosed. A transmitter device having a capacitive conductor and a receiver device having a capacitive conductor in proximity to the capacitive conductor of the transmitter device. The capacitive conductors of the transmitter device and the receiver device are aligned using an alignment indicator, which indicates that at least one edge of the capacitive conductor of the receiver device is in alignment with the capacitive conductor of the transmitter to optimize a transfer of power between the capacitive conductors.

Abstract: A circuit can include a supercapacitor switch including first and second terminals, that is configured to electrically couple the terminals to one another in a closed position and to electrically de-couple the terminals from one another in an open position responsive to a supercapacitor switch control signal. A first supercapacitor has a first terminal that is electrically coupled to the first terminal of the supercapacitor switch and has a second terminal that is electrically coupled to a reference voltage. A second supercapacitor has a first terminal that is electrically coupled to the second terminal of the supercapacitor switch and has a second terminal that is electrically coupled to the reference voltage.

Abstract: An apparatus and method for substantially reducing the electrical energy consumption of a.c. induction motor-driven appliances by connecting a database predetermined capacitance in parallel with the motor-driven appliances and connecting a database predetermined inductance in series with the a.c. induction motor-driven appliances to effect the optimal power factor correction and optimal inrush current limiting of such motor-driven appliances thereby conserving electrical energy and reducing electrical energy costs. The databases of the present invention which specify the optimal power factor correction capacitance value and an optimal inductance value for specific a.c. induction motor-driven appliances eliminates the need for preliminary power factor and inrush current related electrical measurements and making the mass production and sale of the present invention practical.

Abstract: An electric household appliance has a low-voltage capacitive power means (10) connected to an electrical power network (3) and is designed to generate a low-voltage (S2,V2). The low-voltage capacitive power means (10) comprise a capacitive dividing circuit (28) comprising a first (30) and second input terminal (31) connected to a first and second power line (3) at a first (V1) and second (VREF) predetermined potential respectively; a first output terminal (32) adapted to generate said low-voltage enabling signal (S2); first (37) and second charge-accumulating means (38) connected between said first and second input terminal; and at least one voltage limiter (40) connected parallel to said second charge-accumulating means (38) and designed to switch from a non-conducting to a conducting state when subjected to a voltage above a predetermined breakdown voltage (VZ).

Abstract: A power control apparatus includes an input terminal and an output terminal for an AC signal; a DC removing capacitor connected between the input terminal and the output terminal; and a variable capacitor that is connected between the input terminal and the output terminal and whose capacitance can be changed by a control signal. One of a current and a voltage of the AC signal is controlled by changing the capacitance of the variable capacitor using the control signal, and dielectrics that form a serially connected row of capacitors composed of the DC removing capacitor and the variable capacitor are configured so as to be integrally laminated, and the control signal is applied across a dielectric that forms the variable capacitor and the AC signal is applied across the dielectrics that form the row of capacitors.

Abstract: A power supply apparatus and a method for supplying power are provided. The apparatus, for use in a system having a first power signal, includes an assistance unit and a power supply device. The assistance unit outputs at least one maintaining signal according to the first power signal selectively. The power supply device outputs a second power signal, wherein the power supply device maintains the second power signal according to the at least one maintaining signal, for example, in an inactive state, such as an idle or standby state or other suitable timing.