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Electricity: power supply or regulation systems January recently filed with US Patent Office 01/10

20100019741 - Circuit arrangement and method for regulating the current in an on-board electrical power supply system of a vehicle: A circuit arrangement for regulating the current in an on-board electric power supply system of a vehicle, with a controllable damping resistance, an energy accumulator and an electronic control unit. The damping resistance is adjustable to satisfy a control condition, such that generator current flowing through the control unit can... Agent: Davis & Bujold, P.l.l.c.

20100019742 - Unified control of single and three-phase power converters: Provided herein is are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping,... Agent: Orrick, Herrington & Sutcliffe, LLPIPProsecution Department

20100019743 - Dc-dc converter: The present invention provides a DC-DC converter including a first series circuit connected to both ends of a first switch and formed of a winding of a first transformer, a first reactor, a first diode, and a smoothing capacitor, a second diode connected to a connection point of a primary... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20100019744 - Variable input voltage regulator: A variable input voltage regulator includes a first circuit configured to convert a first voltage from a first voltage source to a first current, and a second circuit electrically coupled to the first circuit and configured to mirror the first current to a voltage output node. The variable input voltage... Agent: Cantor Colburn LLP-ibm Poughkeepsie

20100019745 - Multiple switch node power converter control scheme that avoids switching sub-harmonics: A method of and system for modulating buck and boost modulation ramps of a multiple switch node power converter without overlap. As the pulse width or duty cycle of the signal to a modulated complementary switching pair approaches a pre-established reference pulse width or duty cycle, plural fixed-width or fixed... Agent: Texas Instruments Incorporated

20100019746 - Converter with parallel coupled differential input pairs: A circuit (1) for converting first and second differential input signals into an output signal is provided with a first differential input stage (10) comprising first and second inputs (11,12) for receiving the first differential input signal and comprising first and second outputs (13,14) and with a second differential input... Agent: Seed Intellectual Property Law Group PLLC

20100019747 - Low dropout regulator: A low dropout regulator comprises a depletion mode NMOS transistor, a switch and an error amplifier. The source electrode of the depletion type NMOS transistor is coupled to a feedback circuit. The switch, controlled by a control signal, connects a supply voltage to the drain electrode of the depletion mode... Agent: Wpat, PC Intellectual Property Attorneys

20100019749 - Switching power supply device: A switching power supply device for a ripple control system that can obtain the ripple component with the necessary amplitude without using discrete elements. On capacitor Ci of CR integrator 11, a voltage is generated corresponding to the integration value of the voltage applied to inductor Lo. The ripple voltage... Agent: Texas Instruments Incorporated

20100019748 - System and method for reducing voltage overshoot during load release within a buck regulator: A buck regulator comprises an upper switching transistor connected between a voltage input node and a phase node. A lower switching transistor is connected between the phase node and a ground node. An inductor is connected between the phase node and an output voltage node. Circuitry generates control signals to... Agent: Howison & Arnott, L.l.p

20100019750 - Power convertor and current detection apparatus thereof: A current detection apparatus including a current detection circuit, a voltage regulation power supply circuit, and a package carrier is disclosed. The current detection circuit has a reference terminal and a detection terminal. The voltage regulation power supply circuit is used to generate an output voltage and includes a current... Agent: Jianq Chyun Intellectual Property Office

20100019751 - Adaptive frequency compensation for dc-to-dc converter: One embodiment of the invention is a compensation circuit that includes a comparator that is coupled to receive a reference voltage. The compensation circuit can also include a capacitance coupled to receive a feedback voltage associated with an output voltage of a converter. Furthermore, the compensation circuit can include an... Agent: Vishay/siliconix C/o Murabito, Hao & Barnes LLP

20100019752 - System and method for enabling power applications over a single communication wire pair: A system and method for enabling power applications over a single communication wire pair. In one embodiment, a data transformer is provided that has three separate windings. Two of the windings are tied to each other via high frequency pass DC-blocking capacitors, or another suitable element that creates an AC... Agent: Law Office Of Duane S. Kobayashi

20100019753 - Dc/dc power converting apparatus: Three or more circuits including a driving inverter circuit and rectifier circuits are connected in series, each of the circuits including a high-voltage side MOSFET and a low-voltage side MOSFET connected in series as well as a smoothing capacitor having positive and negative terminals between which the MOSFETs are connected.... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20100019754 - Power converter for solar electrical current installations and method for controlling it: A power converter having a d.c. voltage input which varies over time and has a maximum voltage, a level converter and at least one inverter, which can be connected to an electrical network. The positive input of the d.c. voltage input is connected with a first switch and with the... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20100013444 - Power converter: This invention relates to a power converter (1) comprising a converter input (3), a converter output, a power factor pre-regulation stage (5), an isolation stage (7) and a control unit (9). The power factor pre-regulation stage (5) further comprises a buck power factor correction (PFC) circuit (15) and a bulk... Agent: Texas Instruments Incorporated

20100013446 - method for controlling the supply voltage for an integrated circuit and an apparatus with a voltage regulation module and an integrated circuit: The present invention relates to a method for controlling the supply voltage for an integrated circuit, which is connected to a voltage regulation module via a sense line, a voltage supply line and a bus wherein the supply voltage is provided by the voltage regulation module (10) via the voltage... Agent: International Business Machines Corporation Dept. 18g

20100013445 - Comparator controlled charge pump for negative voltage booster: Charge pumps and methods for regulating charge pumps. The charge pump includes a voltage booster circuit and a voltage regulator circuit. The voltage booster circuit includes first and second input terminals that respectively receive a regulation voltage and an input voltage. The voltage booster circuit generates an output voltage having... Agent: Ratnerprestia

20100013447 - Switching power supply circuit: A switching power supply circuit for generating an output voltage at an output node based on an input voltage at an input node includes a reference voltage generating circuit configured to generate a reference voltage such that during an initial start-up period of the reference voltage a voltage rise rate... Agent: Cooper & Dunham, LLP

20100013448 - System including an offset voltage adjusted to compensate for variations in a transistor: A system including a first transistor, a first capacitor and a circuit. The first transistor has a first control input and is configured to regulate an output voltage. The first capacitor is coupled at one end to the first control input and at another end to a circuit reference. The... Agent: Dicke, Billig & Czaja

20100013452 - Methods and apparatus for power supply load dump compensation: Methods and apparatus for power supply load dump compensation according to various aspects of the present invention may operate in conjunction with a power stage system, such as a power stage system comprising a bootstrapped driver circuit and a power stage responsive to the driver circuit. The power stage system... Agent: The Noblitt Group, PLLC

20100013450 - Power supply and over voltage protection apparatus and over voltage protection method: A power supply, an over voltage protection (OVP) apparatus, and an OVP method are provided. The present invention employs the OVP apparatus for monitoring a core power. When a voltage level of the core power is higher than a reference voltage, the OVP apparatus disables a power supply unit. As... Agent: Jianq Chyun Intellectual Property Office

20100013449 - Regulator and semiconductor device: Disclosed is a regulator including: a differential amplifier having a differential input stage receiving a reference voltage and an output terminal voltage, a push-pull type output portion of a current mirror configuration, a drive transistor having a control terminal connected to an output portion of the differential amplifier, first and... Agent: Mcginn Intellectual Property Law Group, PLLC

20100013451 - Semiconductor device: A semiconductor device includes: a high-side switching element having a first switching element connected between an input voltage line and an inductive load; and a low-side switching element having a second switching element and a third switching element that are connected in parallel between the inductive load and a reference... Agent: Turocy & Watson, LLP

20100013453 - Dc/dc converter, computer system having the same, and dc/dc conversion method: A computer system including the same, and a DC/DC conversion method. The DC/DC converter includes: a filter part receiving an input voltage and outputting an output voltage converted in level from the input voltage; a plurality of switching parts switching so that the input voltage is selectively supplied to the... Agent: Stein Mcewen, LLP

20100013454 - Controllable voltage reference driver for a memory system: A voltage reference driver includes a voltage divider circuit with a voltage reference output node to output a voltage between a first voltage and a second voltage. The voltage reference driver also includes a first selectable impedance circuit coupled to a node at the first voltage and further coupled to... Agent: Cantor Colburn LLP-ibm Poughkeepsie

20100007314 - Reactance compensation of electrical system: A reactance (capacitive and/or inductive) module that may be connected to an electrical power system of a real estate property such as a residential or commercial property. If the electrical power system has a net reactance power that is degrading a power factor of the electrical power system, the reactance... Agent: Workman Nydegger 1000 Eagle Gate Tower

20100007315 - High-efficiency power supply device and control method thereof: The present invention discloses a high-efficiency power supply device and its control method. The power supply device includes a power conversion circuit and a load balance detection circuit. The power conversion circuit is connected to at least one set of switch module through an electric circuit, a resistor connected in... Agent: Apex Juris, PLLC

20100007317 - Buck-boost pfc converters: A buck-boost PFC converter is provided and includes an inductor, first and second transistors, a first diode, and a control circuit. The inductor has a first terminal and a second terminal. The first transistor is coupled to a positive-power rail and the first terminal of the inductor. The second transistor... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100007316 - Current sensing in a buck-boost switching regulator using integrally embedded pmos devices: A current sense device for a power transistor is described. The power transistor is formed in a cellular structure including a cellular array of transistor cells. The current sense device includes multiple transistor cells in the cellular array of transistor cells of the power transistor being used as sense transistor... Agent: Patent Law Group LLP

20100007318 - Buck converter threshold detection for automatic pulse skipping mode: Circuits and methods to detect a threshold for entering and leaving a discontinuous current mode of a buck converter have been disclosed. A buck converter is switched to continuous mode if the filtered battery current has reached a defined threshold current Ithccm. In order to expedite the transition from DCM... Agent: Saile Ackerman LLC

20100007319 - Converter control device: A converter device which is configured by connecting three converter circuits in parallel is provided between a secondary battery serving as a first power supply and a fuel cell serving as a second power supply. Two differential ammeters are placed on three reactors corresponding to the three converter circuits. A... Agent: Kenyon & Kenyon LLP

20100007320 - Gate driver topology for maximum load efficiency: A circuit comprises a first input for receiving a supply voltage and a second input for receiving a sensed current signal from an output of a DC to DC converter. The circuit also includes an output voltage for providing an adjustable drive voltage to a drive circuit. The circuit additionally... Agent: Howison & Arnott, L.l.p

20100007321 - Dynamic electrical converter system: A dynamic electrical converter system configured to receive a variable voltage input which is then converted to a proper electrical configuration for a load. The converter assembly utilized multiple converters, each of which is configured to accept a unique range of voltages and from these voltages creating the desired electrical... Agent: Mark E. Ogram

20100007323 - Control apparatus of dc-dc converter: A control apparatus of a DC-DC converter includes a reactor and a switching element, repeats an accumulation and a discharge of energy of the reactor by a switching operation of the switching element, and converts a direct-current input voltage to acquire a direct-current output voltage. The control apparatus includes: a... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20100007322 - Resistor unit and a circuit including the resistor unit: A resistor unit is adapted for use in a constant current source circuit or a temperature compensating circuit for providing temperature compensation to a constant voltage reference circuit. The resistor unit includes at least one first resistor, and at least one second resistor coupled to the first resistor. One of... Agent: Stolowitz Ford Cowger LLP

20100007324 - Voltage reference electronic circuit: The invention relates to a temperature-independent voltage reference circuit. The circuit comprises a first circuit of bandgap type providing a first-order temperature-stable voltage, on the basis of a bipolar transistor base-emitter voltage having a negative slope of variation as a function of temperature, and of a voltage or a current... Agent: Lowe Hauptman Ham & Berner, LLP

20100001698 - Static var corrector: A system for providing reactive power compensation to a utility power network includes a switch coupled to the utility power network, and a capacitor coupled with the switch for providing a controlled amount of reactive current based on conditions of the utility power network. The system also includes a switchable... Agent: Occhiuti Rohlicek & Tsao LLP

20100001699 - Output voltage control circuit for modular power supplies: A method for adjusting an output voltage of a module includes providing a digital reference voltage, converting the digital reference voltage to an analog reference voltage, comparing the output voltage and the analog reference voltage, controlling the module based upon a result of the step of comparing the output voltage... Agent: Murata Power Solutions C/o Keating & Bennett, LLP

20100001700 - System for voltage regulation, control protection and monitoring of state of changers under power transformer load, voltage regulators, capacitor banks and similar: System for voltage regulation, control, protection and monitoring of state of changers under power transformer load, voltage regulators, capacitor banks and similar”, is preferably applied to power transformers (1) and voltage regulators and similar, through a microprocessor (2) it provides innovating functions that make up for deficiencies of currently existing... Agent: Mckee, Voorhees & Sease, P.L.C

20100001701 - Circuit with one or more depletion mode transistors: An H-bridge circuit formed from two sub-circuits coupled to each other by a load network across a respective load node of each of the sub-circuits. Each sub-circuit of the two sub-circuits comprises a depletion mode upper transistor with a second electrode coupled to a first electrode of a lower transistor.... Agent: Motorola, Inc.

20100001702 - Single pin multi-vid bit interface circuit for dynamic voltage change of a dc/dc converter: A controller for a DC/DC converter is provided. The controller comprises an error circuit, control logic, a high side driver, a low side driver, and an interface circuit. The error circuit is coupled to a feedback terminal so as to receives a feedback signal and is coupled to the control... Agent: Texas Instruments Incorporated

20100001705 - Power controller for supplying power voltage to functional block: A power controller includes a digital control circuit which performs a digital control on a basis of a difference between an output voltage supplied to a power control target device and a voltage reference, so that the output voltage is equal to the voltage reference, and a processor control circuit... Agent: Mcginn Intellectual Property Law Group, PLLC

20100001704 - Programmable step-down switching voltage regulators with adaptive power mosfets: A step-down switching voltage regulator includes M high-side switches connected between an input voltage and a node; N synchronous rectifiers connected between the node Vx and a ground voltage and an inductor connected between an input voltage and a node Vx and an inductor connected between the node Vx and... Agent: Advanced Analogic Technologies

20100001703 - Programmable step-up switching voltage regulators with adaptive power mosfets: A step-up switching voltage regulator includes an inductor connected between an input voltage and a node Vx, M low-side switches connected between the node Vx and a ground voltage and N synchronous rectifiers connected between the node Vx and an output node. An interface circuit that decodes a control signal... Agent: Advanced Analogic Technologies

20100001706 - Converter having pwm ramp adjustable in discontinuous mode operation: A ramp adjustment circuit for a voltage converter including a gate driver for controlling series connected high- and low-side switches connected across DC voltage and coupled at an output node connected to a load through an inductor such that the converter operates in a continuous conduction mode (CCM) or a... Agent: Farjami & Farjami LLP

20100001707 - Stepwise ramp voltage generator: A stepwise voltage ramp generator includes a tank capacitor, a terminal of which is coupled to a reference potential to be charged with a voltage ramp. A transistor couples the tank capacitor to a supply line. A diode-connected transistor, biased with a bias current is coupled to the transistor to... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20100001708 - Paralleling voltage regulators: Circuits and methods for paralleling voltage regulators are provided. Improved current sharing and regulation characteristics are obtained by coupling control terminals of the voltage regulators together which results in precise output voltages and proportional current production. Distributing current generation among multiple paralleled voltage regulators improves heat dissipation and thereby reduces... Agent: Mcdermott Will & Emery LLP

20100001711 - Reference circuit and method for providing a reference: A reference circuit configured to provide a reference value. The circuit includes a first circuit unit which is configured to provide a first electrical representation that varies linearly with temperature and has a crossover point where its polarity relative to zero changes from a negative value to a positive value.... Agent: Robert L. Hails, Jr. Kenyon & Kenyon LLP

20100001710 - Reference voltage generating circuit: A reference voltage generating circuit provides a stabilized reference voltage and includes; a clock generator providing a clock signal, a high voltage generator providing a pumping voltage in response to the clock signal, a ripple eradicator providing a static voltage by removing voltage ripple from the pumping voltage, and a... Agent: Volentine & Whitt PLLC

20100001709 - System to generate a reference for a charge pump and associated methods: A system to generate a reference for a charge pump may include a diode-connected transistor providing a reference voltage, and an output transistor. The system may also include a reference circuit to provide a current that is substantially temperature insensitive and the reference circuit delivers the current across the diode-connected... Agent: International Business Machines Corporation Richard Lau