Class 307/109 - CAPACITOR

Subclass of Class 307 - Electrical transmission or interconnection systems
Definition: Subject matter relating to systems having a capacitor.
No. of patents: 177
Last issue date: 11/29/2011

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Number	Title	Issue Date
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 which one or more of the two or more VVCs with the same bias voltage orie...	11/29/2011
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 sections, the power supply and the tool sections being electrically co...	04/19/2011
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 voltage Vin. When a first and a fourth switches are turned on, a flying ca...	12/14/2010
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 other and at least one anti-series VVC network comprised of two VVCs c...	08/17/2010
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 bypass charge saving circuit includes a bypass capacitor, a power source...	08/10/2010
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 system. In one embodiment, an input signal is connected to a switchab...	07/28/2009
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 operating voltage which is applied via charging ...	05/05/2009
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 arranged to operate such that the flying capacitor is coupled to an in...	09/30/2008
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 capacitive modules. An enable block is inserted between the first voltage...	08/19/2008
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 between the capacitor and plural nodes of a second terminal. The charge...	07/22/2008
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 in small electronic devices, such as handheld telecommunication termin...	06/03/2008
7342530	Successive approximation analog/digital converter A successive approximation analog/digital converter converting an analog input signal into a digital output value by means of a plurality of successive conversion cycles, comprises at least one first input for injecting an analog input signal, a controllable capacit...	03/11/2008
7339357	Power supply regulation using kelvin tap for voltage sense feedback from point within integrated circuit load A remote sensing power supply regulator uses high impedance sensing inputs coupled internally to at least one circuit element within an integrated circuit, so as to regulate the voltages produced by the power supply to a level that maintains nominal voltage levels a...	03/04/2008
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 components, requires no external capacitor, and is substantially insensitive...	01/29/2008
7282892	Battery component replacement A battery component replacement circuit for use in a model railroad application is disclosed. The circuit according to an embodiment of the invention has a series of capacitors connected between positive and negative terminals which supply power for charging the cap...	10/16/2007
7283131	Image display apparatus An image display apparatus having a plurality of image forming devices. In an output circuit provided between constant voltage supplies and wiring for driving each of the image forming devices, MOSFETs are successively turned on from the one having a higher ON resis...	10/16/2007
7268646	Temperature controlled MEMS resonator and method for controlling resonator frequency There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a temperature compensated microelectromechanical resonator as well as fabricating, manufacturing, providing and/or controlling microelectromechanical reso...	09/11/2007
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 after the other. Several techniques are disclosed to have only a minimum...	09/04/2007
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 channel transistors with their source/drains connected to each other....	07/17/2007
7233084	Microwave generator The superimposition of the microwave fields of an array (10) of microwave generators (11), with self-firing spark gaps (13) for the discharge of storage devices (43), which are charged up to a high voltage, results in an increase in field...	06/19/2007
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 operating characteristic and connected in an electrical circuit to the loa...	06/12/2007
7230503	Imbalanced differential circuit control A differential circuit includes first and second side circuits which are coupled to receive control signals in such a way as to introduce an intentional imbalance in the differential circuit for certain benefits discussed herein. An exemplary pseudo-differential LC ...	06/12/2007
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 first period, so as to output a determining signal corresponding to the ...	05/29/2007
7218500	High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ...	05/15/2007
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 intermediate circuit capacitor connected between the first feed line and the s...	05/08/2007
7212387	Electrostatic discharge protection device including precharge reduction ESD protection circuitry for a signal power supply pad (801) comprising a discharge circuit (802) operable to discharge the ESD pulse to ground, and a precharge reduction circuit (810) in parallel with the discharge circuit. This precharge reduc...	05/01/2007
7212073	Capacitive tuning network for low gain digitally controlled oscillator According to one exemplary embodiment, a digitally controlled oscillator includes a capacitive tuning network, where the capacitive tuning network controls a frequency of an output signal of the digitally controlled oscillator. The capacitive tuning network includes...	05/01/2007
7208962	Device and method for detecting the environment change of windshield A device and method for detecting environmental change of automobile windshield includes a plane capacitor having two electrodes disposed on a common plane on the inner surface of the windshield, and with a total area of said two electrodes less than 100 sq. centime...	04/24/2007
7202761	Temperature compensation for silicon MEMS resonator Thermally induced frequency variations in a micromechanical resonator are actively or passively mitigated by application of a compensating stiffness, or a compressive/tensile strain. Various composition materials may be selected according to their thermal expansion ...	04/10/2007
7191735	Electric animal deterrent for contact with underlying ground system The present invention provides a high voltage pulse generator used for deterring animals where the high voltage pulses are delivered to the animal through an electrical conductor that lays directly on the ground and is not insulated from the underlying ground system...	03/20/2007
7190210	Switched-capacitor power supply system and method A plurality of thin-film capacitors are grouped in phases. A control circuit switches each phase between charging and discharging states devised to supply one or more loads with controlled power. ...	03/13/2007
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 spark gaps operating in a self-breakdown mode, the trigger-/firing arra...	01/30/2007
7167135	MEMS based tunable antenna for wireless reception and transmission An antenna for a wireless device may be kept dynamically tuned to a desired center frequency to compensate for detuning which may be caused by environmental influences. A sensor provides a feedback signal to a controller to select an appropriate capacitance value fr...	01/23/2007
7161516	Layout of dummy and active cells forming capacitor array in integrated circuit A capacitor array in an integrated circuit with active unit capacitor cells arranged amongst the dummy unit capacitor cells to provide visual and electrical symmetry. The electrical symmetry provides electrical matching between active unit capacitor cells and the vi...	01/09/2007
7155182	Varactor with extended tuning range The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) ...	12/26/2006
7126438	Circuit and method for transmitting an output signal using a microelectromechanical systems varactor and a series inductive device A circuit and method for transmitting an output signal utilizes an inductive device connected in series with a microelectromechanical systems (MEMS) varactor to increase the potential difference across the MEMS varactor due to the output signal by introducing induct...	10/24/2006
7113006	Capacitor reliability for multiple-voltage power supply systems A capacitor circuit having improved reliability includes at least first and second capacitors, a first terminal of the first capacitor connecting to a first source providing a first voltage, a first terminal of the second capacitor connecting to a second source prov...	09/26/2006
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, includes a plurality of switching units coupled with the input locus. ...	09/19/2006
7109686	System and method for precharging and discharging a high power ultracapacitor pack This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during the startup of a high power ultracapacitor pack energy storage device...	09/19/2006
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 plurality of capacitors. Also provided may be a plurality of control circu...	09/19/2006

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Class 307/109 - CAPACITOR