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7592856 Charge pump circuit driver circuit having a plurality of oscillators  
A driver circuit for a charge pump circuit capable of switching between step-up ratios, may include a control unit which controls the charge pump circuit; a first oscillator outputting a first...
7545658 DC-DC boost converter with a charge pump  
A DC-DC boost converter comprises a charge pump selectively operating in a voltage doubler or in a voltage tripler mode. A switching arrangement connects the charge pump to an input voltage...
7541859 Charge pump circuit  
For downsizing a charge pump circuit which selects a voltage multiple ratio, converts its input voltage and outputs the converted voltage, the number of switching devices of the charge pump circuit...
7511977 Charge-pump type switching power supply apparatus  
A switching power supply apparatus generates a first output voltage with a reversed polarity of an input voltage and a second input voltage of double the input voltage with the reversed polarity,...
7468898 DC-DC converter with switchable capacitors  
A step down DC-DC converter is reduced in the cost by reducing a number of capacitors included. The DC-DC converter is provided with switches that connect (n−1) capacitors in parallel with each...
7453296 Delay locked loop having charge pump gain independent of operating frequency  
A delay locked loop (DLL) having a charge pump gain independent of the operating frequency of the DLL. A method for providing a constant gain for a charge pump component of a delay locked loop...
7414334 Circuit arrangement for limitation of over-voltages in energy storage modules  
A circuit for the limitation of over-voltages in energy storage modules having a series circuit of energy storage elements connected between a first potential and a second potential includes...
7402989 Capacitor multiplier  
A capacitor multiplier including a capacitor, a first voltage follower, a first impedance element, and a second impedance element is provided. The input terminal of the first voltage follower is...
7382635 Power supply apparatus, method of controlling the apparatus, and electronic device using the apparatus  
A power supply apparatus includes an input terminal to be connected to a DC power supply, a DC-DC converter connected to the input terminal, a first capacitor, a second capacitor, an output...
7382634 Voltage multiplier with charge recovery  
Capacitive voltage multiplier for generating voltage pulses, preferably up to 100 V, that are higher than the supply voltage for displays, non-volatile memories and corresponding units especially...
7375444 Microwave generator  
A microwave generator ( 11 ) has a parallel connection of series connections of uncontrolled discharge spark gaps ( 13 ) and charge storage means ( 12 ) which are charged up by way of charging...
7365523 Scrambling of the current signature of an integrated circuit  
A method and a circuit for scrambling the current signature of a load including at least one integrated circuit executing digital processings, including the step of, at least on the load ground...
7307858 Power supply arrangement for battery powered device  
A battery powered headworn communication device and a method for conversion of a battery voltage in a battery powered headworn communication device, which includes providing a voltage reduction to...
7307362 Solid-state microsecond capacitance charger for high voltage and pulsed power  
A solid-state high-voltage pulse generator based on a three-phase chopper capacitance charger is described. In a first phase, an intermediate capacitor is resonance-charged via a diode. In a second...
7292462 DC/DC converter having transistor switches with flywheel diodes and program for controlling the transistor switches  
A DC/DC converter that is small, light, highly efficient, and inexpensive are provided which includes a DC power supply input section, a first and second capacitor connected in series, and an...
7282986 Negative voltage generator circuit  
The present invention is related to a negative voltage generating circuit for reliably providing the semiconductor integrated circuit (IC) with a negative voltage. An electric charge pumping device...
7282985 Charge pump with at least two outputs  
“A charge pump used for producing at least a first output voltage and a second output voltage according to an input voltage is disclosed. The charge pump includes a pump unit, first to fourth...
7279811 Arrangement for supplying variable loads  
The invention relates to a first circuit arrangement (E) for supplying variable loads that can be connected to the first circuit arrangement (E) from a first current or voltage source (MV) in a...
7271505 Voltage balancing in intermediate circuit capacitors  
A balancing circuit for voltages of a series connection of capacitors, particularly for intermediate circuit capacitors ( 3 ) of an inverter, there being at least two intermediate circuit...
7265459 High Q linear controlled variable capacitor  
A voltage controlled variable capacitor, formed of a larger number of fixed capacitor segments and a corresponding number of switching elements, linearly switches on each switching element, one...
7259974 Integrated floating power transfer device with logic level control and method  
A switch control circuit ( 416, 402, 418, 422 ) and method are provided for transistor-implemented switches ( 405, 413, 408, 414 ) of an integrated floating power transfer device ( 400, 500 ). The...
7256637 High voltage switching apparatus  
A switching arrangement for a high voltage load provides high voltage pulses to the load. The switching arrangement includes switching modules, where n is typically ( 75 ). A load capacitance is Cd...
7224591 Charge pump DC/DC converter circuit  
A charge pump DC/DC converter circuit of the present invention includes: a monitor circuit that detects a potential difference between terminals of a semiconductor switch that turns on during a...
7170198 Trigger arrangement for a Marx generator  
In trigger/firing arrangement in a Marx generator comprising n stage capacitors—n being a natural number greater than 1-, the same amount of spark gaps and 2(n−1) charging branches, with the...
7092263 DC-DC converter for converting an input voltage to a first output voltage  
A DC—DC converter is provided for converting an input voltage to a first output voltage. The input voltage is input to a first selecting switch, controlled by a first signal, and a second...
7084864 Computer display with switched capacitor power supply  
A computer ( 80 ) includes a display assembly 10 which uses a backlight power supply 40 to power a fluorescent tube 18 for backlighting purposes. The power supply generates voltages necessary...
7064600 Limit swing charge pump and method thereof  
A charge pump comprising a charge pump core including output switches. The charge pump core, in response to a drive signal, to generate a charge pump output. A limit swing generator, in response to...
7049713 Pulsed current generator circuit with charge booster  
A pulsed current generator circuit for providing current pulses to a device under test includes a current source for applying a current to the device under test and a controlled current shunt for...
7005759 Integrated converter having three-phase power factor correction  
An integrated converter is provided. The integrated converter includes an AC/DC converter electrically connected to a three-phase power supply for converting an alternating current into a first...
6985024 Voltage multiplier  
A voltage multiplier has a first stage that multiplies an input voltage, and a second stage that multiplies the output of the first stage. To that end, the voltage multiplier has the noted first...
6967523 Cascaded charge pump power supply with different gate oxide thickness transistors  
A cascaded charge pump based power supply for use with low voltage dynamic random access memory (DRAM) includes a charge pump and a non-overlapping clock signal generator. The charge pump circuit...
6906577 Voltage boosting circuit and method  
A voltage boosting circuit, boosting power supply unit and methods thereof are provided. A boosting power supply unit includes a boosting circuit having a small number of externally-mounted...
6883103 Data carrier for the adaptation of a consumption time interval to the power consumption of the data carrier  
A data carrier that communicates confidential data is configured to mask process-dependent power consumption by using power stored in an internal capacitor. The capacitor is initially charged to...
6861894 Charge pump with Fibonacci number multiplication  
A charge pump includes a plurality of capacitors that are alternately charged and serially coupled. When serially coupled, the voltage across a given capacitor will equal the voltage at its...
6853097 Uniterruptible power supply and its starting method  
The present invention provides an uniterruptible electric power supply capable of inhibiting an excessively high intensity of inrush electric current at the time of start even when the inrush...
6809433 Capacitor unit with electric double layer capacitors, control method and control apparatus for the same, and accumulator system for motor vehicles  
A capacitor unit with plural double layer capacitors eliminating irregularity in a state of charge of the respective double layer capacitor in the capacitor unit. A capacitor unit, a capacitor unit...
6806762 Circuit and method to facilitate threshold voltage extraction and facilitate operation of a capacitor multiplier  
A system and method to extract a threshold voltage for a MOSFET include first and second stages, which include inputs that receive functionally related input currents, are connected to each other....
6806760 Low-voltage booster circuits and methods of operation thereof  
A voltage booster circuit includes first and second capacitors and a switch circuit coupled to the first and second capacitors and operative to apply a power supply across the first and second...
6791210 Cyclic regulation apparatus, system, and method  
A power delivery apparatus, system may include a series-connected plurality of energy storage devices, a voltage sensor to sense a supply voltage across a load coupled to a selected one of the...
6753623 Switched capacitor array circuits having universal rest state and method  
A switched capacitor array circuit for use in a voltage regulator, including L, M and N banks of capacitor positions disposed intermediate an input node and a ground node, between the input and...
6744646 Device and method for converting a low voltage signal into a high voltage signal  
A device and method for converting a low voltage signal into a high voltage signal are provided, which can be implemented by using a low voltage CMOS manufacturing process to convert a low voltage...
6703943 Assembly for signal transfer between a receiving station and a transmitting station as well as for power supply of the transmitting station  
In an assembly for signal transfer between a receiving station and a transmitting station and for power supply of the transmitting station where these two stations are connected via a two-wire...
6661682 High voltage generating charge pump circuit  
The present invention is directed to a charge pump circuit. A multi-stage charge pump circuit with a particular structure for at least one of said stages is presented. The stage has two switches of...
6657876 Switched-capacitor-type stabilized power supply device  
To permit a switched-capacitor-type stabilized power supply device to operate stably until the battery power falls considerably low, it needs to be provided with a voltage step-up circuit with a...
6643151 Multiple output dynamically regulated charge pump power converter  
A charge pump power converter efficiently provides electrical power by dynamically controlling a switch matrix of the charge pump. Instead of open-loop oscillator-based control, a dynamic...
6633091 Storage module  
The storage module comprises a plurality of storage means Ca-Cd for storing electric energy and energy transfer means 2 a -2 d and Sa-Sd for transferring stored energy among the plurality of...
6631081 Capacitive high voltage generator  
A capacitive high voltage generator having a first stage and a second stage respectively formed by a first basic block and a second basic block and a third basic block. Each basic block has a...
6614134 Power supplies for ECUs  
A voltage supply circuit for an ECU, of the type which uses a capacitor to hold charge for use in maintaining the supply during temporary supply interruptions, wherein a charge pump is provided for...
6603673 Charge-pump circuit and a load-driving circuit utilizing the same  
The present invention discloses a charge-pump circuit, which contributes to the improvement of the reliability of capacitor for boosting provided inside even under the condition where supply...
6563235 Switched capacitor array circuit for use in DC-DC converter and method  
A capacitor array circuit having at least two capacitors, switching circuitry coupled to the capacitors and to input, output and common nodes and control circuitry. The control circuitry operates...
Matches 1 - 50 out of 376 1 2 3 4 5 6 7 8 >