Electricity: power supply or regulation systems inventions 10/07

20070247122 - Bridgeless power factor corrector circuit and control method thereof: The present invention discloses a bridgeless rectified power factor corrector circuit and control method thereof. The bridgeless rectified power factor corrector circuit includes a power factor corrector inductor, two diode rectifiers, a control unit, two power MOS switches and an energy-storage capacitor to define a complete booster circuit. Unlike the... Agent: John G. Chupa Law Offices Of John Chupa & Associates, P.C.

20070247123 - Single stage integrated boost inverter motor drive circuit: An integrated boost inverter circuit including at least one inverter stage having series connected high- and low-side switches having a common node. Each switch having an anti-parallel connected diode connected across the switch, which diode can be an external diode or an internal body diode of the switch; at least... Agent: Ostrolenk Faber Gerb & Soffen

20070247121 - Power factor correction controller: A power factor correction controller simultaneously controls several power converters to be operated at a critical conduction mode to improve the overall conversion efficiency and conversion power of the power factor corrector. The controller includes a primary power converter control circuit for feeding back an input voltage signal, an output... Agent: Rosenberg, Klein & Lee

20070247124 - Power supply apparatus and power supply method: A power supply apparatus and power supply method that are able to decrease the overshoot/undershoot that occurs at the time of power supply voltage switching and enhance the voltage switching speed. Power supply apparatus 100, when in a transient state where output voltage is increased, supplies DAC value DD1 of... Agent: Greenblum & Bernstein, P.L.C

20070247125 - Dc-dc converter: A dc-dc converter comprising a power conversion circuit for converting an input voltage to an output voltage is described. A control circuit is adapted to drive the power conversion circuit so as to produce the output voltage at a predetermined magnitude. The dc-dc converter further comprises an auxiliary power supply... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20070247126 - Hybrid filter for high slew rate output current application: An active linear regulator circuit in parallel with a filter capacitor of a switching voltage regulator injects current to a load only when the switching regulator and capacitor cannot supply adequate current to follow high frequency load transients in a manner which is compatible with adaptive voltage positioning (AVP) requirements.... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20070247129 - Optimal feedback control of switch-mode power converters: A power converter including a power switch, an output filter, and a controller. The output filter receives a switched input voltage and produces a filtered power converter output characteristic represented by a state vector. A controller coupled to the power switch and the output filter estimates the state vector of... Agent: Mark E. Jacobs

20070247128 - Method and apparatus for predicting discharge time of magnetic device for power converter: A method and apparatus for predicting the discharge time of magnetic device are provided. A switching circuit generates a switching signal and an auxiliary signal. The switching signal is used to regulate the switching regulator. The auxiliary signal is used to control the synchronous rectifier. An evaluation circuit generates a... Agent: J.c. Patents, Inc.

20070247127 - 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 at the internal circuit element within the very... Agent: Duane Morris, LLPIPDepartment

20070247130 - Adaptive current reversal comparator: An adaptive current reversal comparator for synchronous switching regulator comparison circuit for use in a switching regulator is provided. The comparison circuit includes a voltage offset that is used at least in part to compensate for a propagation delay of the comparison circuit. The switching regulator includes an inductor and... Agent: Mcdermott Will & Emery LLP

20070247131 - Switching regulator: A switching regulator is disclosed that is able to operate with low power consumption and able to prevent variation of an output voltage. The switching regulator operates in a PWM control mode and a PFM control mode, and includes a switching unit; an error amplification circuit for amplifying an error... Agent: Dickstein Shapiro LLP

20070247132 - Switching power supply apparatus and method: Configurations provide reduction in the hum and the weak shocks that are produced in audio equipments where electrical power is supplied. Switching electrical power sources include, a rectification element that rectifies a current that is supplied, a switching element that switches the input voltage that has been rectified by the... Agent: Foley & Lardner

20070247133 - Voltage generation circuit and semiconductor memory device including the same: A voltage generation circuit comprises a reference voltage generation circuit; a differential amplifier; an output node; a P-channel MOS transistor; a first resistor series; a second resistor series; a third resistor series; and a selection control circuit. A reference voltage generated by the reference voltage generation circuit is input to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070247134 - Control apparatus: Control apparatus (1) for selectively applying a mains AC electrical supply (3) to an electrical appliance (4) in response to a remote signal received via a cellular telecommunications network comprises a housing (8) within which an electrical socket (14) for providing power to the appliance (4) is integrally formed. An... Agent: Sughrue Mion, PLLC

20070247135 - Current detection device: The present invention provides a low-cost current detection device having a magnetic sensor easily placed on a choke coil, wherein assembly and manufacturing costs are reduced and a product is miniaturized. A current detection device including a choke coil for smoothing an input current or an output current and a... Agent: Renner Kenner Greive Bobak Taylor & Weber

20070247136 - Exchangeable module for additional functionality: The invention refers to an exchangeable power-supplying unit (200, 300) arranged to supply electric power to a device (100, 400). The power-supplying unit (200, 300) is arranged so as to provide the device (100, 400) with one or several additional functionalities and it can preferably be attached so as to... Agent: Nixon & Vanderhye, PC

20070241725 - Step-down converter: The step-down converter includes: a switch to which an input voltage is supplied via an input terminal; an inductor which is connected to the switch; rectifier means which allows a current to flow through the inductor in the OFF state of the switch; smoothing means which smoothes the current of... Agent: Mcdermott Will & Emery LLP

20070241726 - Power regulation device for model railway system: A power regulation device and method for a model railway system is provided. The device comprises inputs that connect to a supply of a digital command control (DCC) waveform and to a track section to be powered by the DCC waveform. The device comprises a current measuring circuit that measures... Agent: Edell, Shapiro & Finnan, LLC

20070241727 - Temperature-compensated inductor dcr dynamic current sensing: A resister network having a negative temperature coefficient (NTC) may be utilized to create a temperature compensated equivalent resistance “R” for a current sensing RC network used in measuring inductor current of a DC-to-DC converter or a general switching regulator that needs to use inductor current as a control signal.... Agent: Baker Botts, LLP

20070241728 - Low-dropout voltage regulator with a voltage slew rate efficient transient response boost circuit: A low-dropout (LDO) voltage regulator for generating an output voltage is disclosed. The voltage regulator includes a startup circuit, a curvature corrected bandgap circuit, an error amplifier, a metal oxide semiconductor (MOS) pass device and a voltage slew rate efficient transient response boost circuit. The MOS pass device has a... Agent: Volpe And Koenig, P.C.

20070241729 - Power supply apparatus and test apparatus: Provided is a power supply apparatus including: a connection resistance that supplies a power supply current of an electronic device to the electronic device; a low pass filter that allows passage of an output voltage of a power current output section; a parallel load section that consumes a partial power... Agent: Jianq Chyun Intellectual Property Office

20070241731 - Creating additional phase margin in the open loop gain of a negative feedback amplifier system using a boost zero compensating resistor: A low-dropout voltage (LDO) regulator that creates a zero in the open loop gain using a relatively small-sized current control element to divert part of the supplied load current through a “zero” resistor before adding it to the output load. The main part of the output load is passed through... Agent: Bever Hoffman & Harms, LLP Tri-valley Office

20070241730 - Linear regulator and method therefor: In one embodiment, a linear regulator is formed with a variable miller compensation circuit that varies a zero of the linear regulator proportionally to a load current supplied by the regulator.... Agent: Bradley J. Botsch Semiconductor Components Industries, LLC

20070241732 - Power management system with multiple power sources: A power management device for enabling multiply power sources to supply power to a load. The power management device includes a plurality of switches and a control logic. The plurality of switches are coupled to a plurality of power sources respectively and each switch coupled to each power source. The... Agent: Wang Law Firm, Inc.

20070241733 - Frequency-on-the-fly control circuit and method for a dc/dc pwm converter: A control circuit and method are provided to generate a modulation signal to operate a power stage in a DC/DC PWM converter such that the DC/DC PWM converter is controlled to operate with high switching frequency in light load stead state, once load transient happens, it still operates with high... Agent: Rosenberg, Klein & Lee

20070241734 - Low pass filter: The present disclosure provides a method for filtering in a cordless electrical device. The method may include coupling a filter network, a microcontroller and a plurality of battery cells having a cell voltage and a current. The method may further include operatively connecting at least one switched capacitor low-pass filter... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070241735 - Power efficient startup circuit for activating a bandgap reference circuit: A power efficient startup circuit for activating a bandgap reference circuit is disclosed. The startup circuit uses a voltage supply having a voltage level to initiate the flow of a startup current used to activate the bandgap reference circuit. When the bandgap reference circuit starts, the startup circuit slowly charges... Agent: Volpe And Koenig, P.C.

20070241736 - Reference voltage generator circuit: A reference voltage generator circuit comprises a first current path and a second current path. The first current path is formed between an input terminal supplied with a first reference voltage and an output terminal and including a first diode and a first resistor serially connected from the input terminal.... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070241737 - Current source apparatus for reducing interference with noise: A current source apparatus for reducing interference with noise is provided. The current source apparatus includes a controllable current source and a feedback controller. The controllable current source provides an output current according to a control signal and produces a feedback signal according to the output of the controllable current... Agent: Jianq Chyun Intellectual Property Office

20070241738 - Start up circuit apparatus and method: A start-up circuit for electronic circuits is provided. In one embodiment, the circuit uses a smaller capacitor and a current amplification means to force a larger capacitor to reach a charged state in a reduced time. The present invention is useful in any type of electronic circuit where fast start-up... Agent: Pulse-link, Inc.

20070236187 - High-performance solar photovoltaic ( pv) energy conversion system: The present invention focuses on the development of a high-performance solar photovoltaic (PV) energy conversion system. The power circuit of the invention is made of a two-stage circuit, connecting a step-up DC-DC converter and a full-bridge inverter in serial. The present invention uses an adaptive perturbation and observation method to... Agent: Hdsl

20070236188 - Self-oscillating dc-dc buck converter with zero hysteresis: A self-oscillating DC-DC buck converter with zero hysteresis is described. The converter comprises a comparator with a supply input, a non-inverting input to which a reference voltage is applied, an inverting input to which a feedback signal is applied, and an output to which a filter network is connected. The... Agent: Texas Instruments Incorporated

20070236189 - Voltage boost circuit and voltage boosting method using voltage boost clock signal with varying frequency: A voltage boost circuit and a method of boosting voltage using a voltage boost clock signal with varying frequency, in which the voltage boost circuit includes a boost voltage generator that responds to a voltage boost clock signal in order to boost an input voltage and outputs the boosted input... Agent: F. Chau & Associates, LLC

20070236190 - Low dropout voltage regulator for slot-based operation: Voltage regulator for providing an output voltage (Vout) to a load (Zload) having an output transistor (T1), an operational amplifier (OA), and a first reference voltage source (VS). The negative input of the operational amplifier (OA) is connected to a feedback line (FL) to receive an input voltage derived from... Agent: Sughrue Mion, PLLC

20070236198 - Power supply device: A power supply device comprises: a voltage converting portion that converts a voltage generated from a power supply portion into an output voltage to be supplied to a load; a voltage divider circuit that generates an output voltage setting signal for providing a set value of the output voltage; a... Agent: Pearne & Gordon LLP

20070236199 - Step-up dc/dc converter and electronic appliance therewith: A step-up DC/DC converter uses N-channel field-effect transistors as both an output transistor and a synchronous-rectification transistor and includes a first driver making the gate voltage of the output transistor pulsate between a ground voltage and an input voltage and a second driver making the gate voltage of the synchronous-rectification... Agent: Fish & Richardson P.C.

20070236192 - Adaptive dc to dc converter system: s

20070236193 - Adaptive dc to dc converter system:

20070236194 - Adaptive dc to dc converter system:

20070236195 - Adaptive dc to dc converter system:

20070236196 - Adaptive dc to dc converter system:

20070236197 - Adaptive dc to dc converter system:

20070236191 - Boost regulator with integrated load switch: A boost regulator includes a diode D connected between a node VX and an output node VOUT. The node VX is connected to ground by a first switch M1. A second switch M2 and an inductor L are connected in series between the node VX and an input node VIN.... Agent: Advanced Analogic Technologies

20070236201 - Correction circuit for improved load transient response: A correction circuit for use in a switched power supply wherein the correction circuit provides a correction signal indicating a duty cycle adjustment necessary to modify pulse width modulation of the power supply such that the output inductor current matches the load current drawn by a load connected to the... Agent: Ostrolenk Faber Gerb & Soffen

20070236200 - Methods and systems for disturbance rejection in dc-to-dc converters: Feedforward compensated systems and methods for their use.... Agent: Burns & Levinson, LLP

20070236202 - Bias generator: A bias generator comprises a first transistor and a second transistor having a control port connected to a control port of the first transistor and to an input port of the second transistor, where a second current through the second transistor is greater than a first current through the first... Agent: Qualcomm Incorporated

20070236203 - Power supply circuit capable of reducing the number of external components: An inverting negative voltage DC-DC power supply circuit comprises a first resistor having one end connected to an output terminal for converting a change in output voltage into a current. A zero-volt clamp circuit is connected to the other end of the first resistor and comprises a first and second... Agent: Sughrue Mion, PLLC

20070236204 - Power supply device and switching power supply device: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070236205 - Method for controlling a multiphase interleaving converter and corresponding controller: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs by detecting the derivative of a voltage signal of the output terminal. All the phases... Agent: Fleit, Kain, Gibbons, Gutman, Bongini & Bianco P.l.

20070229040 - Electronic device, method for controlling the same, and optical semiconductor module: An electronic device includes a DC/DC converter supplied with an external power supply, and an electronic circuit having a power supply input to which an output of the DC/DC converter is supplied. A converted voltage that is the output of the DC/DC converter is lower than a center value of... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070229039 - Variable drive switching regulator architecture: A circuit for use in powering a load having dynamic power needs. A variable strength controller is provided that has a feedback terminal, at least one p-terminal, and at least one n-terminal. The p- and n-terminals are each suitable for driving a respective semiconductor device to partially control the power... Agent: Nvidia C/o Murabito, Hao & Barnes LLP

20070229041 - Excess current detecting circuit and power supply device provided with it: An excess current detecting circuit detects an excess current status of a power MOS transistor, which outputs a current to a load from a drain electrode, and outputs the excess current detection signal. The excess current detecting circuit is provided with: a detection MOS transistor wherein a source electrode and... Agent: Fish & Richardson P.C.

20070229042 - Systems and methods for driving light emitting diodes: The present disclosure describes systems and methods for driving light emitting diodes (LEDs). At least some embodiments include an LED driver system that includes a power supply, a plurality of current sources (each current source coupled between a common return resistor and one of a plurality of branches of series... Agent: Texas Instruments Incorporated

20070229043 - Microprocessor die with integrated voltage requlation control circuit: An integrated circuit die includes a microprocessor and a control circuit to control elements of a voltage regulator to supply power to the microprocessor.... Agent: Buckley, Maschoff & Talwalkar LLC

20070229050 - Power converter: A power converter having a high side switching device and a low side switching device that are connected in series between a positive power supply terminal and a negative side power supply terminal for direct current, the connection point between the high side switching device and the low side switching... Agent: Crowell & Moring LLP Intellectual Property Group

20070229051 - Resonant inverter exhibiting depressed duty variation: A resonant inverter includes a first driver and a second driver for driving a first and second switching devices, respectively, a dead time generator for generating a first drive signal and a second drive signal respectively, a current-controlled oscillator for supplying, to the dead time generator, an output clock having... Agent: Sidley Austin LLP

20070229048 - Method for controlling a multiphase interleaving converter and corresponding controller: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs. All the phases of the converter are simultaneously turned on, and a driving interleaving phase... Agent: Fleit, Kain, Gibbons, Gutman, Bongini & Bianco P.l.

20070229049 - Method for controlling a multiphase interleaving converter and corresponding controller: A method is provided for controlling a converter of the multiphase interleaving type. According to the method, there is detected when a change of the load applied to an output terminal of the converter occurs. All the phases of the converter are simultaneously turned off, and a driving interleaving phase... Agent: Fleit, Kain, Gibbons, Gutman, Bongini & Bianco P.l.

20070229045 - Power control device for controlling supply of electric power from a power source to load terminals: A power control device is adapted for controlling supply of electric power from a power source to load terminals in various control modes. A first control unit of a first circuit module receives the electric power from the power source, and an input signal generated by an operating unit and... Agent: Frommer Lawrence & Haug

20070229046 - Switched capacitor equalizer with offset voltage cancelling: An embodiment may be described as a switched capacitor analog equalizer circuit with offset voltage cancellation, where an embodiment comprises an amplifier in which a feedback path from its output port to one of its input ports is provided during a reset phase, and where the amplifier's input port connected... Agent: Luke A. Johnson

20070229047 - Tapped inductor buck dc-dc converter: A buck dc-dc converter includes a tapped inductor having an active switch connected to the inductor tap and to a ground. A first diode is connected between the inductor and an input voltage source.... Agent: Harness, Dickey, & Pierce, P.l.c

20070229044 - Various methods and apparatuses for a multiple input-voltage-level voltage-regulator and a multiple voltage-level dc power supply: A method, apparatus, and system are described in which operating characteristics of voltage regulator (VR) may be controlled. Example operating characteristics that are controlled may be 1) power conversion efficiency based on load demand on the VR, 2) response rate to a transient deviation from a regulated output parameter, such... Agent: Blakely Sokoloff Taylor & Zafman

20070229052 - Method and apparatus to provide temporary peak power from a switching regulator: Various techniques directed to providing temporary peak power from a switching regulator are disclosed. In one aspect, a switching regulator includes a switch that is to be coupled between a power supply input and an energy transfer element of the power supply. A controller is coupled to be responsive to... Agent: Blakely Sokoloff Taylor & Zafman

20070229053 - Method and apparatus for a voltage triggered current sink circuit: A current sink circuit is disclosed. An apparatus according to aspects of the present invention includes a sensing element, a pass element coupled to the sensing element and a setting element coupled to the pass element. The setting element provides both a voltage threshold level and a current regulation reference.... Agent: Blakely Sokoloff Taylor & Zafman