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Document Title |
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8179098 |
Charge controlling semiconductor integrated circuit
Disclosed is a charge controlling semiconductor integrated circuit including: an electric current controlling transistor connected between a voltage input terminal and an output terminal to control...
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8169108 |
Capacitive isolator
An integrated circuit provides high voltage isolation capabilities. The circuit includes a first area containing a first group of functional circuitry located in a substrate of the integrated...
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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...
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8120934 |
Voltage converter and method for voltage conversion
A voltage converter comprises a first, a second and a third capacitor (11, 12, 13) which are switched in series in at least one operating state, an input (1) for supplying an input voltage (VIN),...
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8106714 |
Adjustable capacitor, digitally controlled oscillator, and all-digital phase locked loop
An adjustable capacitor is provided including a capacitor unit including a plurality of capacitor groups aligned in a matrix format and a switch unit to adjust capacitance by connecting the...
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8067858 |
Low-distortion voltage variable capacitor assemblies
An embodiment of the present invention provides an apparatus, comprising a first half cell comprising a circuit with two or more voltage variable capacitors (VVCs) configured in anti-series in...
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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...
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8013474 |
System and apparatuses with multiple power extractors coupled to different power sources
In some embodiments, an apparatus or system may include multiple power extractors each coupled to a different power source. The power extractors may be in parallel or in series. The extractors and...
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8010010 |
Energy storage device, image forming apparatus including energy storage device, and discharge control method
An energy storage device that includes capacitor cells of a first type having a first internal resistance and capacitor cells of a second type having a second internal resistance which is higher...
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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...
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7928605 |
Electrical power supply arrangement for a downhole measurement assembly
A downhole measurement assembly comprising a metal casing housing a plurality of tool sections, one of which includes a detector sensitive to a magnetic field, and a DC power supply for said tool...
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7927326 |
Residual energy recovery in a drug delivery device
An implantable drug delivery device includes a pump motor that is driven by electrical energy from a storage capacitor. At the end of each pump delivery cycle, electrical energy stored in the pump...
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7911185 |
Battery voltage detection circuit
A battery-voltage detection circuit comprising: a first-capacitor; an operational-amplifier; a second-capacitor; a voltage-application-circuit to sequentially apply one and the...
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7902797 |
Capacitor charging apparatus
A capacitor charging apparatus includes a transformer and an output capacitor charged with current flowing through a secondary coil of the transformer, and charges the output capacitor by...
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7893662 |
Method and related device for charging at the same voltage two or more capacitors connected in series
A device, such as a pump capacitor or an energy storing inductor, is charged by coupling it to a voltage source. Thereafter, the device is connected in parallel to one of the capacitors or...
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RE42066 |
System and method for power-efficient charging and discharging of a capacitive load from a single source
A system and method for efficiently charging and discharging a capacitive load from a single voltage source. The system includes a first switch for selectively connecting the voltage source to the...
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7868273 |
Microwave generator
In order to make it possible to direct sufficient microwave energy at a target with an electronic device which is to be interfered with or to be destroyed, the beams (7) from at least two antenna...
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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...
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7851946 |
Switching power supply and electronic apparatus employing the same
In a switching power supply apparatus, an input voltage Vin applied to an input terminal is output from a first output terminal and a second output terminal after boosting or inverting of the...
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7795758 |
Method and device for production and emission of a high-power microwave pulse
The production and emission of high-energy microwave pulses are made possible by means of a device with a particularly compact design if the capacitor column (12-12) of the Marx generator (11)...
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7777369 |
Apparatus, system and methods for enabling linearity improvement in voltage controlled variable capacitors
An embodiment of the present invention provides an apparatus, comprising at least one anti-parallel pair VVC network comprised of two parallel VVCs with one biased in the opposite polarity of the...
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7777456 |
Electric storage device
Electric storage device is provided which is capable of smoothly charging storage elements and reliably detecting an overvoltage of each of the storage elements. Electric storage device includes...
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7772721 |
Method and apparatus for conserving energy stored in bypass capacitors during dynamic power collapse
Energy stored in bypass capacitors in a portable device may be conserved when a power supply voltage is collapsed reducing the need to recharge the bypass capacitors and thereby saving power. A...
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7692411 |
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...
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7659700 |
Charge-transfer apparatus and method
An electronic device for transferring charge includes: a charge storage device; an inductive section; and a switching array having a first set of switches connected to a first node of a power...
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7638982 |
Switched capacitor regulator for driving high load current
A switched capacitor regulator in accordance with the present invention comprises a DC voltage source, a plurality of switches, a pumping capacitor, and a load capacitor. The plurality of switches...
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7612603 |
Switching frequency control of switched capacitor circuit using output voltage droop
A frequency control circuit including a controlled oscillator and an amplifier circuit is disclosed for providing a clock signal to a switched capacitor circuit which divides an input voltage to...
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7566994 |
Small-step, switchable capacitor
According to an example embodiment, an apparatus is provided that produces a small-step switchable capacitor, which can have steps that are smaller in value than the smallest capacitor used in the...
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7554789 |
Capacitor array management
A capacitor array comprising a plurality of unit capacitors, each having first and second electrode plates. The first electrode plates are commonly connected via first routings. The second...
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7528506 |
Circuit arrangement for startup current limitation for electronic modules connected to a module carrier
A circuit arrangement for the time-delayed startup of electronic modules (20) connected to a module carrier (1) comprises a comparator (28) provided with a reference voltage applied thereto and an...
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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,...
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7486150 |
Electric circuit and oscillator comprising said electric circuit
An electric circuit includes a circuit path from a first reference voltage to a second reference voltage lower than the first reference voltage. The path includes a current generator, a capacitor,...
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7474879 |
Power supply
A power supply (1) for a load in the form of a PCMCIA card (2) has and onboard GPRS class (10) module (not shown). The module, and therefore card (2), demands a load current iload that has an...
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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 o...
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7430133 |
Apparatus and method for switch connected as a diode in a charge pump
A switched-capacitor type voltage regulator is provided. The regulator includes a flying capacitor and switches, including first and second transistors which operate as switches. The switches are...
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7414459 |
Architecture for implementing an integrated capacitance
An architecture for implementing an integrated capacity includes a capacitive block inserted between first and second voltage reference. The block is formed The block is formed from elementary...
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7402983 |
Method for use of charge-transfer apparatus
A method for controlling a switching power converter which includes a central capacitor exchanges charge between the capacitor and plural nodes of a first terminal, and then transfers the charge...
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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...
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7323928 |
High capacitance integrated circuits
An integrated circuit providing high equivalent capacitance ranging from a few tens of picofarads to a few nanofarads is presented. The integrated circuit includes active integrated circuit...
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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...
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7245519 |
Digitally programmable capacitor array
A programmable capacitor array does not require separate switching transistors because the capacitors themselves have a switchable capacitance, which capacitors are made in the manner of regular N...
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7230352 |
Compact power supply
The present invention discloses an electrical power supply for providing electrical power to a load, the power supply comprising a plurality of energy storage elements each having a different...
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7215041 |
Charging circuit for a frequency converter
A charging circuit for a frequency converter having a first feed line with a first constant current source therein and a second feed line with a second constant current source therein. An...
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7109607 |
System to vary capacitance based on a control signal
Some embodiments provide a plurality of capacitors coupled in parallel and a plurality of capacitor switches, each one of the capacitor switches coupled in series with a respective one of the...
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7109812 |
Apparatus and method for presenting a linear capacitive output in response to a voltage input
An apparatus for presenting a substantially linear capacitive output at at least one output locus in response to a voltage input at an input locus, the voltage input varying over a voltage range,...
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7064460 |
Method for balancing a three-point DC intermediate circuit, and an apparatus for carrying out the method
A method and apparatus for balancing a three point DC voltage intermediate circuit involves a converter circuit which influences an electrical power flow in a three point DC voltage intermediate...
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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...
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7049710 |
Power bus for distributed ride through capability
A monitoring system includes a power source, a power bus coupled to said power source, a plurality of power taps coupled to said power bus, each of said power taps having a ride-through capacitor...
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7031135 |
Capacitor with high thermal stability for shielded electrical lines
The capacitor of high thermal stability includes a high-voltage electrode (HT) extending in a longitudinal direction (AX), a cylindrical printed circuit (CI) coaxially surrounding said high-voltage...
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RE38918 |
System and method for power-efficient charging and discharging of a capacitive load from a single source
A system and method for efficiently charging and discharging a capacitive load from a single voltage source. The system includes a brat switch for selectively connecting the voltage source to the...
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