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Electricity: power supply or regulation systems February patent applications/inventions, industry category 02/10

20100045245 - Control method for dc/dc converters and switching regulators: A circuit for controlling a switching regulator includes a switching control circuit configured to operate one or more switches in a repeating sequence that includes a first state in which an inductor is coupled between an input supply and a load so that an increasing current passes from the input... Agent: Advanced Analogic Technologies

20100045246 - Apparatus and method for reverse power regulation with measured source side voltage: An apparatus and method for measuring the source-side line voltage from a source potential transformer (PT) of a regulator during reverse power flow. A reverse power regulation algorithm (“Source Side PT”) is employed during reverse power operation of the tapchanger to energize a contact relay which switches the analog voltage... Agent: Gray Robinson Attn: Stefan V. Stein/IPDept.

20100045247 - Parallel arranged linear amplifier and dc-dc converter: A power supply system comprises a parallel arrangement of a linear amplifier (LA) and a DC-DC converter (CO). The linear amplifier (LA) has an amplifier output to supply a first current (II) to the load (LO). The DC-DC converter (CO) comprises: a converter output for supplying a second current (12)... Agent: Docket Clerk

20100045248 - Bi-directional boost-buck voltage converter: A bi-directional Boost-Buck voltage converter includes a controller, a high-voltage capacitor, a lower-voltage battery, a resistive load, an inductor, and three or four switches, and provides a mechanism to efficiently provide power to the resistive load from the battery. It uses two configurations of the switches to configure the battery,... Agent: Advanced Analogic Technologies

20100045253 - Cyclical dc voltage converter for suppressing voltage spikes and oscillations: A DC voltage converter is provided that cyclically converts an input-side supply voltage into an output voltage. The converter includes an inductive storage element connected between a terminal for the supply voltage and, in a manner such that it is coupled via a first switch, a reference potential terminal. The... Agent: Spryip, LLC Ifx

20100045250 - Method for detecting output short circuit in switching regulator: A method and circuit for accurately detecting an output short circuit in a switching regulator. A first transistor and a second transistor are connected in series and driven in a complementary manner. A comparator compares output current, which is generated when the first and second transistors are driven, with a... Agent: Freescale Semiconductor, Inc. Law Department

20100045252 - Power supply circuit: When an output of an overall output terminal (18) of a power supply circuit (10) is switched from a series regulator section (14) to a switching regulator section (12), a fifth switch (55) is switched OFF, to temporarily open a feedback loop of the switching regulator section (12), a sixth... Agent: Osha Liang L.L.P.

20100045251 - Voltage output circuit, integrated circuit and electronic device: A voltage output circuit has a controller controlling ON/OFF switching of a first switch which switches ON/OFF voltage transformation by a first charge pump circuit in order to turning a first voltage outputted from a first voltage output terminal into a desired value, a second charge pump circuit transforming the... Agent: Oliff & Berridge, PLC

20100045249 - Voltage regulator for write/read assist circuit: A push-pull voltage regulator configured to selectively provide power to used portions of a memory array is presented. The push-pull voltage regulator includes a voltage-up regulator, which provides a reference voltage to an SRAM array, and a voltage-down regulator, which controls removal of excess charge from the SRAM array. The... Agent: Martine Penilla & Gencarella, LLP

20100045254 - Average current mode controlled converter having a buck mode, a boost mode, and a partial four-switch mode: An average current-mode controlled converter has a buck mode, a boost mode, and a four-switch mode. In one example, the converter operates in one of the three modes, depending on the difference between the converter output voltage VOUT and the converter input voltage VIN. Whether the four-switch mode is a... Agent: Imperium Patent Works

20100045255 - Voltage generator arrangement and method for voltage conversion: A voltage generator arrangement which comprises a voltage converter (40) and a polarity detection circuit (10). The voltage converter (40) is coupled to a supply voltage terminal (9) and an output terminal (7) and comprises a first mode of operation (P1) for a positive supply voltage (VIN) and a second... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20100045256 - Dc/dc converter and slope compensation circuit thereof: A slope compensation circuit includes a first differential pair circuit, a current mirror unit, a first operating current generation circuit, and a transconductance compensation circuit. The first differential pair circuit is connected to a first current source and receives a pair of differential oscillation signals to generate a pair of... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100045258 - Dedicated power supply apparatus, terminal, power supply system, and power supply method: A dedicated power supply apparatus includes a regulator that receives power from an external power source, two signal lines to which the regulator is connected, and two resistors, each placed between the regulator and an associated one of the two signal lines.... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20100045257 - Supply circuit for a motor disposing of an element providing for power switching, a protection against polarity inversion and an element for limiting the inrush current of a capacitive element: Supply circuit (3) for an electric apparatus (1) having a positive supply line (5) and a negative supply line, to which lines a polarity inversion detection module (18), an inrush current module (18) and a capacitive filter element (14) are connected, wherein the capacitive filter element is mounted on a... Agent: Osha Liang L.L.P.

20100039078 - Load fluctuation correction circuit, electronic device, testing device, and load fluctuation correction method: Provided is a load fluctuation compensation circuit for compensating a power source voltage supplied to an operation circuit, the load fluctuation compensation circuit including: a periodic signal changing section that receives a power source voltage from a power source shared with the operation circuit, and outputs a changed signal resulting... Agent: Jianq Chyun Intellectual Property Office

20100039079 - Regulation of a current through an inductive load: A current regulator and a method for regulating current are described.... Agent: Slater & Matsil LLP

20100039080 - Single-inductor buck-boost converter with positive and negative outputs: A single-inductor power converter with buck-boost capability provides regulated bipolar output voltage to a positive and a negative load. A five-switch bridge topology allows a controller to direct the inductor current to the appropriate outputs or circuit ground as needed to maintain regulation. The controller also adjusts the inductor current... Agent: William E Hein

20100039081 - System for supplying and receiving power, power supply device and method thereof: A power supply device includes a power input unit used for receiving an external power source, a voltage converting unit used for converting the voltage of the external power source to a predetermined voltage, a communication unit used for obtaining working voltage information of a power receiving device connected to... Agent: PCe Industry, Inc. Att. Steven Reiss

20100039082 - Low dropout voltage regulator with clamping: Apparatus and methods for reducing output load transients of a low dropout voltage regulator (“LDO”) are disclosed herein. A voltage regulator includes an output driver coupled to a regulator output pin, the output driver provides current to a load external to the regulator. A clamping device is coupled between the... Agent: Texas Instruments Incorporated

20100039083 - Bootstrap supply for switched mode power converter: A power converter controller is operable to control power provided to a load circuit coupled between a first voltage supply terminal and a first switching element by controlling the first switching element and to control power provided to an energy storage element coupled to the first switching element. The energy... Agent: Williams, Morgan & Amerson

20100039085 - Buck boost function based on a capacitor bootstrap input buck converter: A buck boost voltage converter circuit, comprises a capacitor pump circuit for boosting an input voltage in a first mode of operation when an input voltage is below a desired voltage level. A buck converter circuit provides the output voltage responsive to the boosted input voltage from the capacitor pump... Agent: Howison & Arnott, L.l.p

20100039084 - Controllable circuit: A switch-mode power circuit comprises a controllable element and a control unit. The controllable element is configured to control a current in response to a control signal supplied to the controllable element. The control unit is connected to the controllable element and provides the control signal. The control unit comprises... Agent: Patrick J. O'shea, Esq. O'shea Getz P.C.

20100039087 - Switching power supply circuit: A switching power supply circuit according to an aspect of the present invention includes: a switch; a coil serving as an energy transmitting element; a capacitor serving as an output generation circuit that outputs, as an output voltage, the energy transmitted from the coil; an output voltage detection circuit which... Agent: Greenblum & Bernstein, P.L.C

20100039086 - Voltage converter: A voltage converter connectable to a power source (PS) and a load (LD) provides a regulated output voltage (Vout) from a voltage (Vin) power source by switchable current paths including an inductive element (L). The voltage converter includes a plurality of switching elements for switching the current paths of the... Agent: Docket Clerk

20100039088 - Interleaved slave switching circuit for discontinuous mode pfc converter: A slave switching circuit for a master-slave PFC converter is disclosed. The slave switching circuit includes a phase-detection circuit coupled to detect a master-switching signal and a slave-inductor signal for generating a start signal and a phase-lock signal. The start signal is coupled to enable a slave-switching signal. The slave-switching... Agent: Jianq Chyun Intellectual Property Office

20100039089 - Regulation circuit and a method for regulating an input voltage: A regulation circuit comprises an error detector, an integrator, and a voltage regulator. The error detector comprises an input for an input voltage, a further input for a reference voltage and an output for an error signal, wherein the error signal depends on the input voltage and the reference voltage.... Agent: Dickstein Shapiro LLP

20100039090 - Voltage compensation circuit: A voltage compensation circuit is disclosed for proving an elevated output AC voltage upon an under voltage input AC voltage condition. The voltage compensation circuit comprises an autotransformer having a first and a second autotransformer winding. A first position of a switch connects the first autotransformer winding to the input... Agent: Robert F. Frijouf, Esquire Frijouf, Rust & Pyle, P.A.

20100039091 - Start-up circuit for bandgap circuit: A start-up circuit is provided for a bandgap circuit, the bandgap circuit having at least one bandgap diode. The start-up circuit comprises a comparator for providing a start-up voltage for the bandgap circuit. The comparator is connected to receive a first reference voltage at a first input terminal, the output... Agent: Reed Smith LLP

20100039092 - Inductor assembly: An inductor assembly includes a first inductor, a second inductor being magnetically coupled to the first inductor, and a third inductor being magnetically coupled to said first and second inductors. The third inductor may be connected to a variable resistor adapted for adjusting the magnetic coupling between the first and... Agent: Seed Intellectual Property Law Group PLLC

20100039093 - Circuit for generating internal voltage of seminconductor memory apparatus: An internal voltage generating circuit of a semiconductor memory apparatus includes a control signal generating unit configured to enable one of a plurality of control signals in response to a calibration code; and a signal variable voltage distributing unit configured to determine a distribution ratio in response to one enabled... Agent: Venable LLP

20100033143 - Switching power converter and controller: A switching power converter includes an input for receiving an input voltage, an output for providing an output voltage, a controller, and a power circuit coupled between the input and the output and including at least one switch. The controller is configured to determine a duty cycle for the switch... Agent: Harness, Dickey, & Pierce, P.l.c

20100033144 - Voltage regulators: Voltage regulators are provided. In one embodiment of the voltage regulators, a differential amplifier receives a reference voltage and a feedback voltage, to generate a control signal according to a voltage difference between the feedback voltage and the reference voltage. An output transistor has a first terminal coupled to a... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100033146 - Current sensing for high voltage buck converter: Methods, systems, and devices are described for providing output (e.g., current) sensing and feedback in high-voltage switching power converter topologies. Certain aspects of high voltage switching converter topologies may make output (e.g., current) sensing difficult. In some embodiments, a sampling module implements sample-and-hold techniques in a low-side switch converter topology... Agent: Townsend And Townsend And Crew, LLP

20100033145 - Dcr sense for a cot power converter: A DCR sense scheme is provided to sense the inductor current of a COT power converter. The DCR sense is implemented by using the direct current resistance of the output inductor of the COT power converter, and thus eliminates the ESR limitations on the type of output capacitors for stability... Agent: Rosenberg, Klein & Lee

20100033147 - Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply: A power supply regulator including a variable current limit threshold that increases during an on time of a switch. In one aspect, a power supply regulator includes a comparator that has a first input coupled to sense a voltage representative of a current flowing through a switch during an on... Agent: Blakely Sokoloff Taylor & Zafman LLP

20100033148 - Voltage reference circuit with fast enable and disable capabilities: A circuit for providing an output voltage substantially equal to a reference voltage includes: a low drop-out (LDO) regulator coupled to the reference voltage for producing the output voltage at an output terminal; a reference current source having a first end and a second end for providing a predetermined reference... Agent: North America Intellectual Property Corporation

20100033149 - Digitally controlled current-mode switched power supply: Disclosed is a current mode switched power supply. The current mode switched power supply includes a switching element and a power stage coupled to the switching element and configured to provide, in response to the switching of the switching element, an output voltage and a feedback voltage related to the... Agent: Mendelsohn, Drucker, & Associates, P.C.

20100033150 - Bus voltage optimizer for switched power converter: Methods, systems, and devices are provided for optimizing a bus voltage supplied to a switching power converter to keep the duty cycle of the switching power converter to within a desirable operating range. In some embodiments, the duty cycle of the switching signal used to drive the switching power converter... Agent: Townsend And Townsend And Crew, LLP

20100033151 - Multi-phase voltage regulator module and method controlling the same: A multi-phase voltage regulator module connects to a central processing unit and is able to operate in one of a high-load mode and a low-load mode. The multi-phase voltage regulator module comprises: a pulse-width-modulation controller generating a plurality of phase-width-modulation signals; and, a plurality of phase circuits, each of which... Agent: Kirton And Mcconkie

20100033153 - Pwm clock generation system and method to improve transient response of a voltage regulator: A pulse control clock generator for a voltage regulator including a comparator, a window circuit, a filter circuit, a ramp circuit, and a current circuit. The comparator compares a ramp voltage with a compensation voltage and provides a corresponding pulse control signal. The compensation voltage is indicative of output voltage... Agent: Huffman Law Group, P.C.

20100033152 - Pwm power converter using a multi-slope ramp signal to improve the transient response thereof: A ramp generator is provided to provide a multi-slope ramp signal for a PWM power converter. The ramp generator determines the slope turning points for the multi-slope ramp signal according to the error signal of the PWM power converter and thereby improve the transient response of the PWM power converter.... Agent: Rosenberg, Klein & Lee

20100033154 - Current balance in a multi-phase power converter with constant on-time control: A multi-phase power converter with constant on-time control includes a plurality of channels to convert an input voltage into an output voltage, and each of the channels is driven by a control signal. When all channel currents of the channels are balanced, each of the control signals remains a constant... Agent: Rosenberg, Klein & Lee

20100033155 - Power supply for igbt/fet drivers: A power supply for IGBT/FET drivers (1) that provides separated, isolated power to each IGBT/FET driver in a system wherein the power supply (1) is connected to at least one voltage controller (16) having at least one line in main power connector (14), at least one line out main power... Agent: Strasburger & Price, LLP Attn:IPSection

20100033156 - Non-contact power feeder: [Means for Solving Problems] A series capacitor Cs1 is connected to a primary winding 1 driven by an AC power supply 3 and a parallel capacitor Cp2 is connected to a secondary winding 2. The capacitance Cp is set to Cp≈1/{2πf0×(x0+x2)} and the capacitance Cs converted to the primary side... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20100033157 - Microwave transmission line dc/dc converter: A method and an electrical circuit for DC-DC voltage conversion in a network comprising an input voltage terminal, an output voltage terminal, at least one first switch and at least one second switch, at least one input impedance, at least one load impedance and at least one transmission line with... Agent: Ericsson Inc.

20100026249 - Generator apparatus with active load dump protection: A generator apparatus includes a generator, a generator controller, and a rectifier bridge. A detector unit for recognizing a load shutoff is also provided. When a load shutoff is recognized, a switch is controlled to be transmissive so that energy produced by the load shutoff is stored in an energy... Agent: Kenyon & Kenyon LLP

20100026250 - Multimode voltage regulator circuit: A multimode voltage regulator circuit includes a linear regulator sub-circuit configured to supply current to a load in a low-current mode, responsive to a first control signal from a first control path, as well as a switching regulator sub-circuit configured to supply current to the load in a high-current mode,... Agent: Ericsson Inc.

20100026251 - Voltage regulator with ripple compensation: Embodiments of the present invention provide a voltage regulator. The voltage regulator includes a driving mechanism coupled to an output node (VREG), wherein the driving mechanism is configured to provide current to the output node to sustain a predetermined voltage on the output node. In addition, the voltage regulator includes... Agent: Pvf -- Synopsys, Inc C/o Park, Vaughan & Fleming LLP

20100026252 - Low drop-out voltage regulator with efficient frequency compensation: A low drop-out (LDO) voltage regulator with efficient frequency compensation is disclosed. The LDO voltage regulator includes an error amplifier, a transmission element, a voltage divider and a pole control unit. The error amplifier generates a control signal according to a reference voltage and a feedback voltage. The transmission element... Agent: North America Intellectual Property Corporation

20100026253 - Buck converter with surge protection: A buck converter with surge protection comprises a transistor, a voltage clamp circuit, a control circuit, a rectifier diode, an inductor, an output capacitor and a resistor. The transistor is coupled to a input voltage. The voltage clamp circuit has a Zener diode. The Zener diode is coupled to the... Agent: Juan Carlos A. Marquez C/o Stites & Harbison PLLC

20100026254 - Low dropout regulator and the over current protection circuit thereof: An over current protection circuit for low dropout regulator comprises a sense transistor, a sense resistor, an operational amplifier and a first transistor. The sense transistor senses the current flowing through the power transistor. The sense resistor is coupled to the sense transistor and shares the same current flowing through... Agent: Wpat, PC Intellectual Property Attorneys

20100026259 - Dc-dc converter integrated circuit and dc-dc converter: A DC-DC converter integrated circuit includes: a switching terminal; a feedback terminal; a high-side transistor operable to output a voltage through the switching terminal in ON state; a voltage sensor operable to compare voltage at the switching terminal with a first reference voltage; an error amplifier operable to generate an... Agent: Turocy & Watson, LLP

20100026257 - Non-synchronous boost converter including low-voltage device for load disconnection: A non-synchronous boost converter includes a low-voltage device connected between the input voltage terminal and the output voltage terminal of the converter. When the converter is shutdown, the low-voltage device disconnects the output voltage terminal and the input voltage terminal. Since it is a low-voltage device used in the converter... Agent: Rosenberg, Klein & Lee

20100026255 - Power switch circuit: A power switch circuit includes a connector connected to a power supply, a detecting circuit, a first switch circuit, and a first conversion circuit. The connector is connected to the detecting circuit and connected to a first power terminal of a motherboard. The connector is connected to a second power... Agent: PCe Industry, Inc. Att. Steven Reiss

20100026258 - Semiconductor integrated circuit: The present invention provides a semiconductor integrated circuit which can reduce power consumption without hampering operation of a CPU. A power supply control circuit 40 installed separately from a CPU 10 detects a signal (e.g., an idle signal Si) from the CPU 10 installed on a semiconductor chip 1. In... Agent: Young & Thompson

20100026256 - Switching regulator and control method thereof: A switching regulator may operate in a synchronous mode or an asynchronous mode. When the load current is higher than a threshold, the switching regulator switches a pair of serially connected high side and low side switches with a pulse width modulation signal. When the load current is lower than... Agent: Rosenberg, Klein & Lee

20100026263 - Buck controller having integrated boost control and driver: An integrated circuit controller for controlling the operation of a voltage converter which includes a first comparator for comparing a voltage associated with an input of a boost converter with a threshold voltage and generating a control signal in response thereto. A second comparator compares a second voltage associated with... Agent: Howison & Arnott, L.l.p

20100026261 - Multi-level signaling: A control circuit generates an output based on the first signal and the second signal by encoding the output to be a multi-state signal having at least three states. A magnitude of the multi-state signal generated by the controller varies depending on binary states of the first signal and the... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20100026262 - Power supplying apparatus: A first-order feedback control power supply apparatus being arranged in such a manner that when the apparatus is driven under light load condition, a current flowing through an inductor is detected by employing a second CR smoothing filter; when the present load condition is judged as a light load condition... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100026264 - Self-adjusting switched-capacitor converter with multiple target voltages and target voltage ratios: A method for constructing a direct-current to direct current (DC-DC) converter from an input voltage to an output voltage. The DC-DC converter has multiple capacitors and multiple switches connectible the capacitors. A target voltage ratio is obtained based on the input voltage and the output voltage. The target voltage is... Agent: The Law Office Of Michael E. Kondoudis

20100026260 - Switching regulator circuit for operation as a switching device in a switching mode and a passive device in a passive mode: A switching regulator circuit is provided for operation as a switching device in a switching mode and as a passive device in a passive mode. A controller is provided for operating the circuit in a switching mode and a passive mode. Additionally, a single transistor is provided for operating as... Agent: Zilka-kotab, PC

20100026265 - Power supply unit having configurable output voltage ranges: As a result of a path being connected to an input terminal to allow a first intermediate voltage from a power-side regulator or another external source that does not pass through the power-side regulator to be selectively inputted into any supply-side regulator, a supply voltage can be generated based on... Agent: Nixon & Vanderhye, PC

20100026266 - Pulse width modulation controller, circuit and method thereof with short circuit protection: A PWM comprises a voltage transformation module, a voltage-sensing module and a timer. The voltage transformation module is configured to transform an input voltage into an output voltage. The voltage-sensing module is coupled to the voltage transformation module and configured to detect a voltage of a first terminal, wherein the... Agent: Wpat, PC Intellectual Property Attorneys

20100026268 - Control method for adjusting leading edge blanking time in power converting system: A control method for adjusting leading edge blanking time in a power converting system is disclosed. The control method includes: receiving a feedback signal relative to a load connected to an output terminal of the power converting system; determining the leading edge blanking time to be a first value if... Agent: North America Intellectual Property Corporation

20100026267 - Single inductor multiple output switching devices: Single inductor multiple output (SIMO) switching devices with efficient regulating circuits. The SIMO switching device includes a plurality of time division multiplexing (TDM) switches for switching current through an inductor of the SIMO switching device. The plurality of TDM switches produces a plurality of outputs. The SIMO switching device further... Agent: Evergreen Valley Law Group

20100026269 - Output voltage compensation device: An output voltage compensation device has a Bark converter, a current detection resistance, a sense resistance, a voltage feedback circuit and a Pulse Width Modulation (PWM) controller. The current detection resistance is series connected with an output end of the Bark converter. Voltage at a front end of the current... Agent: Rosenberg, Klein & Lee

20100026270 - Average input current limit method and apparatus thereof: The embodiment of invention discloses an average input current limit method and apparatus thereof. The apparatus comprises a switching circuit, a current average circuit and a current limit circuit. The current average circuit samples the input current of the switching circuit and generates a signal representative of the average value... Agent: Perkins Coie LLP Patent-sea

20100026271 - Power converters and associated methods of operation: Power converters and associated methods of operation are disclosed herein. In one embodiment, a power converter includes a first switch and a second switch electrically coupled to the first switch in series. The first switch is electrically coupled to a first node and to a second node via the second... Agent: Perkins Coie LLP Patent-sea

20100026272 - Method and apparatus for distribution of a voltage reference in integrated circuits: Inventive embodiments described here provide for accurately distributing a voltage reference to multiple cores of an integrated circuit (IC). A quasi-differential interface is used to transmit the voltage reference, and a virtual ground is established at a receiver located at each core location on the integrated circuit. In one embodiment,... Agent: Dillon & Yudell LLP

20100026273 - Electronic device and adapter thereof: An adapter includes a connector, a rectifier, a communication unit, a modulating unit, and a switching unit. The connector receives an input voltage. The rectifier is capable of rectifying the input voltage into various direct current voltages. The various direct current voltages include a predetermined voltage and a desired voltage.... Agent: PCe Industry, Inc. Att. Steven Reiss

20100026274 - Boost snubber circuit structure: A boost snubber circuit structure applied in a power supply having a boost circuit and a power conversion unit, wherein the boost circuit includes a boost unit connected to a switch element, a boost control unit for generating a driving signal to drive the switch element to control the charge/discharge... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20100026275 - Flux control system for active voltage conditioning: A flux control system for a three-phase active voltage conditioner that utilizes an injection transformer to apply calculated compensation voltage to a mains supply. The flux control system is configured to modify the compensation voltage to be applied to at least one primary terminal of the injection transformer so as... Agent: Buchanan, Ingersoll & Rooney PC