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9007791 Digital slope control for switched capacitor dc-dc converter  
Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. The slope of the charging and/or discharging phase may be modified,...
8933704 Capacitive load testing device of power supply  
A device for testing capacitive loads of a power supply includes a controller, a power supply switching circuit, a capacitive load switching circuit, and a current sampling circuit. The power...
8917160 RFID module  
An RFID module including an antenna element forming an RFID antenna; an RFID circuit block to which the antenna element is connected; and a first resonance frequency adjustment circuit having an...
8868246 Wireless irrigation control  
Several embodiments provide wireless irrigation control and related methods. In one implementation, an irrigation control system includes a transmitter unit including a controller and a connector...
8860256 Domestic appliance, especially a dishwasher or washer  
A domestic appliance having a control device to control device components of the domestic appliance during execution of a program, wherein the device components have electrical loads. The domestic...
8861234 Voltage source converter having chain link converter for use in high voltage DC transmission  
A DC voltage source converter for use in high voltage DC power transmission comprising at least one chain-link converter connected between first and second DC terminals. The or each chain-link...
8861233 Programmable switching for switched capacitor DC-DC converter  
A method and apparatus for regulating a dc-dc converter wherein a plurality of switches are arranged with respect to an energy storage device and an output capacitor. An impedance of one or more...
8854847 Power and management device and method  
A power management device comprises: an input for receiving a transient energy pulse; a first storage section and a second storage section for storing energy from the input; an output; a switching...
8797770 System and method for capacitive DC-DC converter with variable input and output voltages  
A capacitive voltage converter comprising a switched capacitor array having a voltage input and a voltage output. A skip gating control coupled to the switched capacitor array and configured to...
8754549 Power conversion device  
In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is...
8736247 Power supply circuit and control method of controlling the power supply circuit  
A power supply circuit is provided which includes a first booster to boost a power supply voltage supplied from a battery and generate a first boosted voltage, a second booster to boost the power...
8723485 Power supply system  
A power supply system includes an output node, an internal power supply unit, a boost storage unit, a charging path unit, and a discharging path unit. The output node is coupled to a load device....
8698347 Power unit  
In order to discharge electrical charges from a smoothing capacitor even if no discharge command is issued by a control system, making use of the displacement of a power unit in the event of a...
8699249 Compensation schemes for the voltage droop of solid-state Marx modulators  
A novel design scheme for the compensation circuitry of solid-state Marx modulators has been described for enhancing the compensation ability of the compensation cells of solid-state Marx...
8644039 Voltage multiplying circuit utilizing no voltage stabling capacitors  
A voltage multiplying circuit comprising: a first capacitor, comprising a first terminal and a second terminal, wherein the first terminal of the first capacitor is selectively coupled to a first...
8644040 Power supply having a charge pump circuit  
Exemplary embodiments of a power supply can be provided. The exemplary power supply can include a voltage source which supplies a supply voltage; and a charge pump circuit supplied by the voltage...
8619444 Voltage booster system and semiconductor chip  
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...
8593254 Semiconductor integrated circuit, card comprising the same, and operating method of semiconductor integrated circuit  
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...
8547067 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,...
8541999 Controlling power loss in a switched-capacitor power converter  
The disclosed embodiments relate to a system that implements a switched-capacitor power converter which is configured to actively control power loss while converting an input voltage to an output...
8503203 Pre-charge of switched capacitor circuits with cascoded drivers  
An apparatus for voltage conversion includes a switched capacitor circuit, a pre-charge circuit, a voltage divider stage, and a driver stage. The switched capacitor circuit has pump capacitors to...
8456874 Partial arbitrary matrix topology (PMAT) and general transposed serial-parallel topology (GTSP) capacitive matrix converters  
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...
8437156 Mirror-image voltage supply  
A voltage supply incorporates two voltage supplies connected in a mirror-image series arrangement to generate a DC voltage between the respective common terminals of the voltage supplies.
8432712 Single switch high efficiency power supply  
Disclosed are apparatus and methodology for providing a capacitive voltage divider configured to reduce a relatively high level alternating current (AC) to a lower level direct current (DC). The...
8385093 Voltage converter  
A voltage converter is provided in which a first terminal (A) and a second terminal (B) are provided, each coupled to a switching means, the switching means is coupled to respective terminals for...
8374007 Supplying power with maintaining its output power signal with the assistance of another power apply and method therefor  
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...
8344554 Switching spark gap  
The present invention relates to a controlled truncating radio connection for a high-voltage impulse test system, preferably for quality assurance of power transformers. According to the...
8320141 High-efficiency, switched-capacitor power conversion using a resonant clocking circuit to produce gate drive signals for switching capacitors  
Some embodiments of the present invention provide a system that efficiently converts between a lower input voltage and a higher output voltage. This system includes an input which receives the...
8294428 Electricity accumulating device  
An electricity accumulating device includes capacitors connected in series, balanced voltage adjusting portions connected to the capacitors respectively, and a control circuit connected to the...
8274805 High voltage power supply  
There is provided a high voltage power supply capable of reducing voltage stress of a voltage multiplying device. The high voltage power supply includes: a power converter switching on/off and...
8274179 Passive differential voltage doubler  
Techniques for generating a differential output voltage between first and second output voltages that is double a differential input voltage between first and second input voltages. In one aspect,...
8258758 System to improve a multistage charge pump and associated methods  
A system to improve a multistage charge pump may include a capacitor, a first plate carried by the capacitor, and a second plate carried by the capacitor opposite the first plate. The system may...
8218342 Power supply device  
The power supply device according to the present invention converts alternating-current power into direct-current power, and supplies the direct-current power to a load. Further, the power supply...
8198756 Voltage-boosting stage  
The invention relates to a voltage-boosting stage (100) comprising a first capacitive voltage circuit (S1, S2, S3, S4, C0, Cb) coupled to a power supply (Vs) and providing an output voltage at an...
8159091 Switch circuit of DC/DC converter configured to conduct various modes for charging/discharging  
A DC/DC converter includes an input terminal for receiving an input voltage; an output terminal for providing an output voltage; a ground terminal for providing a reference voltage; a plurality of...
8154891 Methods and apparatus for selectable output DC/DC converter  
Methods and apparatus for providing a DC/DC converter having a first configuration to output a first voltage level and a second configuration to output a second voltage level.
8134333 Battery and ultracapacitor device and method of use  
A battery and ultracapacitor device for use in a vehicle includes a positive electrode, a first negative electrode, a second negative electrode, a first separator disposed between the positive...
8129866 Mass coupling at clocked HF-elements  
A circuit for a fill-level measuring device is for the fast switching-on of a high-frequency element on a ground port is disclosed. The circuit comprises a switching unit with a circuit mass; a...
8102686 Rectifier with PAM controller to force an input current to approximate a sine wave  
An electric power supply circuit includes a diode bridge circuit (12) for rectifying an alternating current, a switching element (S) for causing a short-circuit for output power of the diode...
8089788 Switched capacitor voltage regulator having multiple conversion ratios  
In general, in one aspect, the disclosure describes a switched capacitor voltage regulator to generate a regulated output voltage based on varying input voltages. The regulator is capable of...
8085566 Semiconductor circuit device and data processing system  
Occurrence of power supply noise arising in connection with a step-down action at the time of turning on power supply is to be restrained. A step-down unit is provided with a switched capacitor...
8063611 Accumulator  
A DC blocking capacitor and a resistor are coupled in series, and coupled in parallel with an electricity storing section. An ON/OFF circuit and a peak voltage holding circuit are coupled in...
7989987 Photon initiated marxed modulators  
The features of this invention allow construction and operation of a variety of high voltage, high repetition rated pulse generators of the Marx type that are switched with photon initiated...
7982439 System for energy harvesting and/or generation, storage, and delivery  
A device and method for harvesting, generating, storing, and delivering energy to a load, particularly for remote or inaccessible applications. The device preferably comprises one or more energy...
7948221 Electric power converter  
The invention provides an optimal electric power converter for a DC/DC converter which variably steps up a voltage successively with an optional magnification of one to two times or more and/or...
7907429 Circuit and method for a fully integrated switched-capacitor step-down power converter  
A circuit and method for providing a fully integrated DC-DC converter using on-chip switched capacitors is disclosed. A switched capacitor matrix is coupled as a digitally controlled transfer...
7893521 Electric fence energiser  
An energiser for an electric fence. The energiser includes, at least, one energy storage capacitor (14), a charging circuit (13) to enable the or each storage capacitor (14) to be charged from an...
7884665 Charge pump circuit, LCD driver IC, and electronic appliance  
A charge pump circuit generates a desired output voltage by stepping up an input voltage. An LCD driver IC and an electronic appliance are provided with the charge pump circuit.
7876589 Semiconductor circuit device and data processing system  
Occurrence of power supply noise arising in connection with a step-down action at the time of turning on power supply is to be restrained. A step-down unit is provided with a switched capacitor...
7859229 Discharge device  
A discharging device capable of realizing a proper PWM drive by accurately reflecting, as a strobe device, the secondary-side condition of a separately-excited strobe charging circuit being...

Matches 1 - 50 out of 436 1 2 3 4 5 6 7 8 9 >