Electricity: power supply or regulation systems inventions 08/09

20090212748 - Voltage sag generator device: A voltage sag generator device (30) for use in an electrical generator machine (2) such as a wind turbine, connected to an electrical network (1) including one to three parallel transformers (3, 4, 5) connected on one side to the wind turbine (2) via a coupling switch (7) and circuit... Agent: Ladas & Parry LLP

20090212749 - Semiconductor device and voltage divider circuit: A semiconductor device includes a resistance layout area that disposes multiple unit resistors, and a voltage divider circuit that divides a voltage applied to a series circuit and has the series circuit including a first resistance element, a second resistance element, some trimming resistance element connected in series, and some... Agent: Cooper & Dunham, LLP

20090212750 - Method for operating an inverter having a step-up device connected upstream: The invention relates to a method for operating an inverter comprising a step-up device which is upstream-connected by means of an intermediate circuit and is connectable to a direct-current source with a variable reference sampling current wherein said inverter and the step-up device are provided with an efficiency optimizing working... Agent: Siemens Corporation Intellectual Property Department

20090212751 - Controller for a power converter and method of operating the same: A controller for use with a power converter including a switch configured to conduct to provide a regulated output characteristic at an output of the power converter, and method of operating the same. In one embodiment, the controller includes a linear control circuit, coupled to the output, configured to provide... Agent: Slater & Matsil, L.l.p.

20090212752 - Power supply unit and portable device: A step-like operation command signal is inputted into a time-constant circuit to generate a gradually rising operation command input voltage, which is supplied to a power supply unit. Enablement and disablement of the power supply unit is controlled on the basis of the operational command input voltage. When the operation... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20090212753 - Voltage regulator having fast response to abrupt load transients: A voltage regulator includes an undervoltage detector having a charge transistor smaller than an output transistor of the voltage regulator, providing a detection path for fast response, compensating undervoltage without large control current when loading changes from light to heavy.... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090212754 - Noise reduction systems and methods: We describe a switch mode power supply having a power input, a switch, a transformer, and a power output. The transformer has a primary winding coupled to said power input via said switch, and a secondary winding coupled to said power output. The transformer further comprises an auxiliary winding and... Agent: Schwegman, Lundberg & Woessner, P.a.

20090212755 - 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 LLP

20090212756 - System and method for power controller: System and method for power controller. According to an embodiment, the present invention provides a power factor correction apparatus. The apparatus includes a multiplier component that is configured to process a first input signal and a second input signal. For example, the first input signal is associated with a rectified... Agent: Jones Day

20090212757 - Voltage transformer with sequentially switchable voltage selection circuit: A voltage transformer with a sequentially switchable voltage selection circuit is provided for converting input electrical energy through the sequentially switchable voltage selection circuit, which is arranged within the transformer body with its two ends electrically connected to an input port and an output port respectively, into one of a... Agent: Bacon & Thomas, Pllc

20090212758 - Method and apparatus for power conversion with wide input voltage range: A power conversion system includes an input terminal that is arranged to be connected to a voltage source; a transformer having a first winding connected to the input terminal and a second winding connected to an output terminal of the power conversion system, either the first winding or the second... Agent: Murata Power Solutions C/o Keating & Bennett, LLP

20090206804 - Quasi-parallel voltage regulator: Improved regulation and transient response are provided by a power supply architecture providing both unregulated and regulated voltage converters in parallel but deriving input power from separate power supplies connected in series wherein regulated and unregulated branches each provide a substantially fixed and constant proportion of the output current. The... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20090206805 - Converter and driving method thereof: The present invention relates to a converter and a driving method thereof. The converter includes a switch controller that controls switching operation of a master switch and a slave switch. The switch controller detects a center point of one switching operation period of the master switch by using an internal... Agent: Sidley Austin LLP

20090206806 - Voltage comparison circuit, and semiconductor integrated circuit and electronic device having the same: A disclosed voltage comparison circuit for detecting a voltage difference of two input signals includes one or more differential amplifier circuits, each of which has a differential pair of first and second input transistors each having an electrode to which a corresponding one of the input signals is input, a... Agent: Cooper & Dunham, LLP

20090206807 - Voltage regulator: Provided is a voltage regulator including an overcurrent protection circuit, which is capable of enhancing accuracy of a limit current value and a short-circuit current value, and suppressing electric power loss when an overcurrent flows through an output transistor. The overcurrent protection circuit includes: an output current detection transistor controlled... Agent: Bruce L. Adams, Esq Adams & Wilks

20090206811 - Current limited voltage source with wide input current range: An integrated electronic device includes circuitry for providing a regulated output supply voltage level at an output node from an adjustable current. The circuitry includes an adjustable current source for providing the adjustable current and for adjusting the adjustable current to a magnitude of a target value in response to... Agent: Texas Instruments Incorporated

20090206809 - Interleaved switching converter, and switching controller and controlling method thereof: In an interleaved switching converter, a first converter including a first switch is coupled to a second converter including a second switch. A switching controller for controlling the first switch and the second switch outputs a second control signal for operating the second switch based a first control signal for... Agent: Sidley Austin LLP

20090206808 - Method for generating an internal compensation network of a pole and two zeros to compensate high frequency voltage mode switching regulators: A method for controlling a switching voltage regulator that includes generating a feedback voltage that is proportional to the output voltage of the voltage regulator; generating a voltage proportional to the duty-cycle of the inductor charging and discharging phases as a function of the difference between the feedback voltage and... Agent: Advanced Analogic Technologies

20090206813 - Power supply circuit: A power supply circuit includes a first voltage regulator, a second voltage regulator, and a voltage comparator. The first voltage regulator is connected to a direct current power supply, and regulates a direct current supply voltage down to a first voltage level to output a first voltage at a first... Agent: Cooper & Dunham, LLP

20090206812 - Power switching circuit improved to reduce loss due to reverse recovery current: In a power switching circuit, a second commutation member has a second commutation path electrically connected in parallel to a first commutation path and a second diode provided in the second commutation path and electrically connected antiparallel to a semiconductor switching element. While the semiconductor switching element is off, the... Agent: Nixon & Vanderhye, PC

20090206810 - Switched mode power supply having improved transient response: A switched mode power supply has a high side switching transistor coupled between a voltage source and a load for generating the output voltage at the load. A driver circuit drives the high side switching transistor. A first resistor divider is coupled to the output voltage and has a first... Agent: Texas Instruments Incorporated

20090206814 - Method and system for efficient power control with multiple modes: Method and system for efficient power control with multiple modes. According to an embodiment, the present invention provides a power system with selectable power modes. The power system includes a first terminal for outputting energy, and the first terminal is electrically coupled to a load. The system also includes a... Agent: Jones Day

20090206815 - Slope rate compensation circuit, method thereof and pulse width modulation boost converter circuit: A slope rate compensation circuit includes a source follower level-shift amplifier, a capacitor, a first resistor and a second resistor. The source follower level-shift amplifier includes a first transistor and a second transistor. The first transistor allows a first current to flow therein, the second transistor allows a second current... Agent: Wpat, PC Intellectual Property Attorneys

20090206816 - Controller for a domestic appliance, domestic appliance and associated method: A controller for functionally controlling a domestic appliance, such as a dryer, comprises a monitoring device that monitors the correct functioning of the domestic appliance. The domestic appliance has at least one monitoring connection connected to at least one associated evaluation node within a power circuit of the domestic appliance,... Agent: Alston & Bird LLP

20090206817 - High voltage drive circuit employing capacitive signal coupling and associated devices and methods: According to one embodiment, there is provided a high voltage drive circuit comprising drive and sense electrodes formed substantially in a single plane. The device effects signal transfer between drive and receive circuits through the drive and sense electrodes by capacitive means, and permits high voltage devices, such as IGBTs,... Agent: Kathy Manke Avago Technologies Limited

20090206818 - Ac voltage regulation system and method: Control of the RMS AC voltage applied to the load (Motor) utilizes a switching device (SCR) such as a SCR in series between the load and a power source. A controller (lPController) including a processor and an analog to digital converter is connected to the line voltage and floats at... Agent: William C. Cahill

20090206819 - Dc-dc converter for a low power electronic circuit: The DC-DC converter (21) is for integration in a low power transceiver (100). The converter is able to supply an output voltage that is higher than the input voltage. The converter includes two distinct variable voltage regulator circuits (3 and 4). The first variable voltage regulator circuit (3) is arranged... Agent: Griffin & Szipl, PC

20090200994 - Method and apparatus for distributed var compensation: A method and apparatus for generating on-demand power. The method comprises receiving a peak reactive current request, generating a control signal based on the peak reactive current request, and utilizing the control signal to drive a DC/AC inverter to generate reactive power commensurate with the peak reactive current request.... Agent: Raymond R. Moser Jr., Esq. MoserIPLaw Group

20090200995 - Combination continuous and discontinuous control of a power regulator: One embodiment of the invention includes a power regulator system. The system includes a switching system comprising at least one switch and an inductor, the switching system being configured to provide an output voltage based on a current through the inductor. The system also includes a switch driver configured to... Agent: Texas Instruments Incorporated

20090200998 - Buck switching regulator with improved mode transition and control method thereof: The present invention discloses a buck switching regulator with improved mode transition, and a method for controlling a buck switching regulator. The method comprises: providing a switching regulator including: an output power stage for converting an input voltage to an output voltage, the output power stage being controlled by a... Agent: Tung & Associates / Randy W. Tung, Esq.

20090200996 - Controlling power supply in radio transmitter: A switched mode power supply unit realized by an integrated circuit comprising a control circuit controlling the operation of the switched mode power supply unit, wherein the control circuit is configured to provide a plurality of different circuit configurations for different operating environments. The circuit configuration for the control circuit... Agent: Squire, Sanders & Dempsey L.L.P.

20090200997 - Switching controller having programmable feedback circuit for power converters: A switching controller for a boost power converter includes a switching-control circuit and a programmable feedback circuit. The programmable feedback circuit is coupled to an output of the boost power converter via a voltage divider. The programmable feedback circuit includes a current source coupled to a switch. On a light-load... Agent: Jianq Chyun Intellectual Property Office

20090200999 - Voltage regulator with compensation and the method thereof: A voltage regulator including a transconductance amplifying unit, a transresistance amplifying unit, a feedback unit, a differential amplifying unit, and a compensation capacitor. The transconductance amplifying unit includes two inputs for receiving a feedback voltage and a reference voltage, and includes an output for outputting a current. The transresistance amplifying... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090201002 - Load driving device and portable apparatus utilizing such driving device: A load such as an LED and a constant-current source are connected in series with each other between the node of a dc-dc conversion type power supply circuit providing an output voltage and the ground. The constant-current source provides a constant current Io, the magnitude of which can be adjusted.... Agent: Hogan & Hartson L.L.P.

20090201001 - Sampled data analog circuits for integrated compensation of switch mode power supplies: A switching mode power supply utilizing an analog sampled data system in the feedback control loop in which the coefficients of the sampled data system are change by reprogramming a programmable nonvolatile memory when external LC values vary.... Agent: Texas Instruments Incorporated

20090201000 - Synchronous rectification switching regulator, control circuit thereof, and method of controlling the operation thereof: A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor;... Agent: Cooper & Dunham, LLP

20090201003 - Dc/dc converter: An error signal, which is representative of a difference between a target voltage and a present voltage, is inputted to both a step-down switching control circuit and a step-up switching control circuit. When the difference between the target voltage and the present voltage is below a predetermined value, the switchings... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090201004 - High-frequency power supply circuit: [Means for Solving Problems] A high-frequency power supply circuit includes: a basic drive square wave generation circuit unit (5) for generating a basic drive square wave having an output frequency; a differential signal generation circuit unit (9) for generating a front edge differential signal of the basic drive square wave;... Agent: Hayes Soloway P.C.

20090201005 - Dc to dc converter module: Lower surface terminals are disposed at the lower surface of a magnetic substrate. An upper surface electrode is disposed at the upper surface of the magnetic substrate. A control circuit, an input capacitor, and an output capacitor are mounted on the upper surface electrode. The control circuit contains a switching... Agent: Studebaker & Brackett PC

20090201006 - Constant current circuit: Provided is a constant current circuit capable of supplying a stable constant current. Even when K values of NMOS transistors vary due to manufacturing fluctuations in semiconductor devices, a voltage generated across a resistor is always a threshold voltage difference between the NMOS transistors, and thus hardly varies. Even when... Agent: Brinks Hofer Gilson & Lione/seiko Instruments Inc.

20090200994 - Method and apparatus for distributed var compensation: A method and apparatus for generating on-demand power. The method comprises receiving a peak reactive current request, generating a control signal based on the peak reactive current request, and utilizing the control signal to drive a DC/AC inverter to generate reactive power commensurate with the peak reactive current request.... Agent: Raymond R. Moser Jr., Esq. MoserIPLaw Group

20090200995 - Combination continuous and discontinuous control of a power regulator: One embodiment of the invention includes a power regulator system. The system includes a switching system comprising at least one switch and an inductor, the switching system being configured to provide an output voltage based on a current through the inductor. The system also includes a switch driver configured to... Agent: Texas Instruments Incorporated

20090200998 - Buck switching regulator with improved mode transition and control method thereof: The present invention discloses a buck switching regulator with improved mode transition, and a method for controlling a buck switching regulator. The method comprises: providing a switching regulator including: an output power stage for converting an input voltage to an output voltage, the output power stage being controlled by a... Agent: Tung & Associates / Randy W. Tung, Esq.

20090200996 - Controlling power supply in radio transmitter: A switched mode power supply unit realized by an integrated circuit comprising a control circuit controlling the operation of the switched mode power supply unit, wherein the control circuit is configured to provide a plurality of different circuit configurations for different operating environments. The circuit configuration for the control circuit... Agent: Squire, Sanders & Dempsey L.L.P.

20090200997 - Switching controller having programmable feedback circuit for power converters: A switching controller for a boost power converter includes a switching-control circuit and a programmable feedback circuit. The programmable feedback circuit is coupled to an output of the boost power converter via a voltage divider. The programmable feedback circuit includes a current source coupled to a switch. On a light-load... Agent: Jianq Chyun Intellectual Property Office

20090200999 - Voltage regulator with compensation and the method thereof: A voltage regulator including a transconductance amplifying unit, a transresistance amplifying unit, a feedback unit, a differential amplifying unit, and a compensation capacitor. The transconductance amplifying unit includes two inputs for receiving a feedback voltage and a reference voltage, and includes an output for outputting a current. The transresistance amplifying... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090201002 - Load driving device and portable apparatus utilizing such driving device: A load such as an LED and a constant-current source are connected in series with each other between the node of a dc-dc conversion type power supply circuit providing an output voltage and the ground. The constant-current source provides a constant current Io, the magnitude of which can be adjusted.... Agent: Hogan & Hartson L.L.P.

20090201001 - Sampled data analog circuits for integrated compensation of switch mode power supplies: A switching mode power supply utilizing an analog sampled data system in the feedback control loop in which the coefficients of the sampled data system are change by reprogramming a programmable nonvolatile memory when external LC values vary.... Agent: Texas Instruments Incorporated

20090201000 - Synchronous rectification switching regulator, control circuit thereof, and method of controlling the operation thereof: A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor;... Agent: Cooper & Dunham, LLP

20090201003 - Dc/dc converter: An error signal, which is representative of a difference between a target voltage and a present voltage, is inputted to both a step-down switching control circuit and a step-up switching control circuit. When the difference between the target voltage and the present voltage is below a predetermined value, the switchings... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090201004 - High-frequency power supply circuit: [Means for Solving Problems] A high-frequency power supply circuit includes: a basic drive square wave generation circuit unit (5) for generating a basic drive square wave having an output frequency; a differential signal generation circuit unit (9) for generating a front edge differential signal of the basic drive square wave;... Agent: Hayes Soloway P.C.

20090201005 - Dc to dc converter module: Lower surface terminals are disposed at the lower surface of a magnetic substrate. An upper surface electrode is disposed at the upper surface of the magnetic substrate. A control circuit, an input capacitor, and an output capacitor are mounted on the upper surface electrode. The control circuit contains a switching... Agent: Studebaker & Brackett PC

20090201006 - Constant current circuit: Provided is a constant current circuit capable of supplying a stable constant current. Even when K values of NMOS transistors vary due to manufacturing fluctuations in semiconductor devices, a voltage generated across a resistor is always a threshold voltage difference between the NMOS transistors, and thus hardly varies. Even when... Agent: Brinks Hofer Gilson & Lione/seiko Instruments Inc.

20090195227 - Constant voltage circuit: A constant voltage circuit configured to convert an input voltage into an output voltage having a predetermined level is disclosed. The constant voltage circuit includes a differential amplifier circuit configured to produce an output signal having a voltage level in response to a reference voltage and the output voltage; and... Agent: Cooper & Dunham, LLP

20090195228 - Microprocessor die with integrated voltage regulation 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: Intel Corporation C/o Cpa Global

20090195229 - Method and apparatus for reducing audio noise in a switching regulator: A switching regulator utilizing on/off control that reduces audio noise at light loads by adjusting the current limit of the switching regulator. In one embodiment, a switching regulator includes a state machine that adjusts the current limit of the switching regulator based on a pattern of feedback signal values from... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090195230 - Circuits and methods for controlling a switching regulator based on a derived input current: In one embodiment the present invention includes a method of controlling a switching regulator based on a derived input current. In one embodiment, an output current of said switching regulator is detected and used to generate a first voltage or current signal corresponding to the output current. Additionally, a switching... Agent: Fountainhead Law Group, PC

20090195233 - Management of regulator-induced switching noise for sampled systems: A system includes a sampler to sample an input voltage and a switching regulator. The switching regulator is adapted to regulate a switching operation of the regulator in response to the sampling by the sampler.... Agent: Hogan & Hartson LLP

20090195231 - Power supply circuit and dynamic switch voltage control: According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20090195232 - Radio-frequency switch circuit: A switch circuit is provided that includes at least one main switching device and at least one shunt switching device. Each main switching device is connected in series with a conductor that carries an RF signal between an input circuit and an output circuit. Each shunt switching device is connected... Agent: Hoffman Warnick LLC

20090195234 - On-chip voltage supply scheme with automatic transition into low-power mode of msp430: An integrated electronic device includes circuitry for providing a system supply voltage from a primary power supply. The circuitry has a high power (HP) stage coupled to the primary power supply and having an output node coupled to a supply system node for providing a HP system supply voltage level... Agent: Texas Instruments Incorporated

20090195235 - Drive circuit and method of using the same: A drive circuit may include a SUPPLY that outputs a first voltage potential, an energy storage device that outputs a second voltage potential, and a LOAD. Switches control the flow of current through the LOAD in a flow direction or in a direction opposite to the flow direction. The first... Agent: Rader Fishman & Grauer PLLC

20090195236 - Semiconductor circuits capable of mitigating unwanted effects caused by input signal variations: Semiconductor circuit capable of mitigating unwanted effects caused by variations in a received input signal are provided, in which a main circuit receives an input signal and comprises a first current source coupled between a first node and a first power voltage to generate a first current according to a... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090195237 - Dual direction power and data transfer protocol and safety detection: A device for monitoring the condition of a power outlet and for reducing or interrupting power in the event that a condition of the outlet circuitry indicates that a potentially dangerous situation exists. The device can also include a reporting function to alert a user as to the existence of... Agent: Zilka-kotab, PC- Hit