Matches 1 - 26 out of 26


Match Document Document Title
US20140071721 VOLTAGE REGULATOR AND METHOD FOR REGULATING DUAL OUTPUT VOLTAGES BY SELECTIVE CONNECTION BETWEEN A VOLTAGE SUPPLY AND MULTIPLE CAPACITANCES  
A voltage regulator including a first, second, and third capacitances, first switches, and second switches. A first terminal of the first capacitance is connected to a first output. The first...
US20140159648 Power Quality Enhancement  
A power quality enhancement circuit is provided with multiple power paths.
US20140092656 POWER SUPPLY CIRCUIT  
A power supply circuit is intended to suppress power consumption when a load is not driven and to shorten a required time to be taken until a boosted voltage to be supplied to a high-side MOS...
US20150009731 MULTILEVEL INVERTER  
The present disclosure proposes an input power of each unit power cell of a cascaded H-bridge inverter that is mutually insulated. To this end, the present disclosure includes a phase shift...
US20100085786 CONVERTIBLE CHARGE-PUMP CIRCUIT  
A convertible charge-pump circuit includes: a charging circuit having a plurality of charging capacitors and a pumping circuit having an output port coupled to a pumping capacitor. The charging...
US20140140485 TRANSFORMER NETWORK  
A transformer network circuit utilizing multiple smaller transformer cores, instead of a single, relatively larger core, for transferring electrical power while maintaining a smaller overall core...
US20090167386 Charge pumping circuit, clock synchronization circuit having the charge pumping circuit, and method for operating the clock synchronization circuit  
A charge pumping circuit includes a first charge pump configured to perform a charge pumping operation on an output terminal in response to a first pumping control signal, an auxiliary charge...
US20050174813 High efficiency power converter with synchronous rectification  
This invention provides an AC-to-DC power converter that improves the overall conversion efficiency especially that at the minimum input ac voltage for universal input operation design by adopting...
US20080273353 Device for Supplying Electrical Power to a Fuel Pump of a Motor Vehicle Internal Combustion Engine  
A device (1) for supplying electric current to the fuel pump (2) of a motor vehicle internal combustion engine (3) comprises a DC/DC converter (13) which increases voltage to a predetermined value...
US20060039172 Circuit to improve capacitor hold-up time in a converter circuit  
A circuit for increasing the bulk capacitor hold-up time in a converter circuit wherein the converter circuit comprises an input circuit for providing a DC bus voltage and a DC bulk capacitor...
US20120230071 POWER SUPPLY CIRCUIT SYSTEM  
A power supply circuit system includes a ring oscillator provided with a variable resistance circuit, a charge pump circuit outputting a boosted voltage in response to an oscillation output signal...
US20070177412 Charge pumped driver for switched mode power supply  
A driver circuit provides a driving signal to the power stage of a switched mode power supply in correspondence with a pulse width modulated duty cycle. A voltage doubler circuit including a...
US20070211502 Voltage step-up circuit and electric appliance therewith  
A charge-pump voltage step-up circuit that produces a desired output voltage by stepping up an input voltage with an output capacitor combined with a plurality of stages of voltage step-up units...
US20070279950 Booster power supply circuit and control method therefor and driver IC  
A booster power supply circuit includes a booster boosting an input voltage to output an boosted voltage for applying said boosted voltage to a first smoothing capacitor and a controller...
US20080278978 HIGH VOLTAGE INDUCTIVE CHARGE PUMP DC-TO-DC CONVERTER ASSEMBLY  
A method and apparatus for a power converter assembly charges a first capacitor and a second capacitor in parallel to a first voltage and at a first polarity, and then discharges the first...
US20070210774 Switching power supply circuitry  
An output voltage VC obtained by boosting an input voltage VIN by means of a charge pump control circuit 3 of a charge pump 102 is supplied as a power supply voltage to a control circuit 4 of a...
US20080080217 Circuit Device  
A circuit device includes: a first booster circuit, started by a predetermined input voltage, which converts the input voltage into a first boosted voltage higher than the input voltage; a...
US20070139982 CHARGE PUMP CIRCUIT AND POWER SUPPLY APPARATUS  
A high efficiency charge pump circuit and a power supply apparatus that can sense the output current level and change the connection of flying capacitors. The charge pump circuit includes a...
US20060083033 Voltage generator, method of generating voltage, display device having the voltage generator and apparatus for driving the display device  
A voltage generator includes a first voltage booster and a second voltage booster. The first voltage booster boosts an input voltage to generate a first boosted voltage applied to a load. The...
US20070081366 Capacitive coupling assisted voltage switching  
A system includes a charge pump configured to provide a boosted voltage, a voltage source configured to provide a voltage less than the boosted voltage, and a load. The system includes a coupling...
US20060256592 Electronic circuit  
Provided is an electronic device having a booster circuit, in which a booster circuit and other circuits are prevented from being damaged even when a voltage that is equal to or higher than a...
US20110121659 METHOD AND APPARATUS FOR HIGH EFFICIENCY AC/DC CONVERSION OF LOW VOLTAGE INPUT  
Embodiments of the subject invention relate to a method and apparatus for providing a low-power AC/DC converter designed to operate with very low input voltage amplitudes. Specific embodiments can...
US20090091950 POWER CONVERTING CIRCUIT WITH OPEN LOAD PROTECTION FUNCTION  
A power converting circuit with an open load protection function is electrically connected to a power supply providing a first voltage level, and outputs a second voltage level to drive a load....
US20100110736 DYNAMIC COMPENSATION FOR A PRE-REGULATED CHARGE PUMP  
An apparatus is provided. The apparatus comprises an error amplifier that amplifies the difference between a reference voltage and a feedback voltage, a first variable impedance circuit coupled to...
US20150311783 CHARGE-RECYCLING CIRCUITS  
In one embodiment, a circuit comprises a first load circuit coupled to a first input voltage. A current sinking circuit is coupled to an output of the first load circuit. A second load circuit is...
US20110032736 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.

Matches 1 - 26 out of 26