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| Number | Title | Issue Date |
| 8125200 | Systems and methods for intelligently optimizing operating efficiency using variable gate drive voltage Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulat... | 02/28/2012 |
| 8106638 | Power control circuit with coupling circuit for controlling output power sequence and liquid crystal display using same An exemplary power control circuit (24) includes a scaler circuit (245) configured for outputting a control signal, a voltage converter (27) configured for converting a received voltage into a plurality of desired voltages, a first control unit ... | 01/31/2012 |
| 8058853 | 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 val... | 11/15/2011 |
| 8058854 | Drive circuit A drive circuit includes a plurality of output drive terminals and a plurality of push-pull circuit stages. Each of the push-pull circuit stages includes a pair of complementary transistors having a common terminal connected to a respective output drive terminal. Th... | 11/15/2011 |
| 8049472 | 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 plura... | 11/01/2011 |
| 8026702 | Voltage regulator system The present disclosure includes circuits, systems and methods for regulating voltage. One voltage regulator system embodiment includes a voltage regulator having an output and a number of stages coupled in parallel to the output of the voltage regulator. Each stage ... | 09/27/2011 |
| 7999521 | DC-DC converter usable for dual voltage supply A converter has a single inductor with a first terminal connectable to a first terminal of the supply input through a first power transistor and a second terminal connectable to a second terminal of the supply input through a second power transistor. A first rectifi... | 08/16/2011 |
| 7999520 | Static phase shedding for voltage regulators based upon circuit identifiers Systems and methods are disclosed that provide static phase shedding techniques to improve the efficiency of multi-phase voltage regulators within information handling systems by selecting the number of active phases for the multi-phase voltage regulators using circ... | 08/16/2011 |
| 7999522 | Method and apparatus for power conversion and regulation Techniques are disclosed to control a power converter with multiple output voltages. One example regulated power converter includes a an energy transfer element coupled between a power converter input and first and second power converter outputs. A switch is coupled... | 08/16/2011 |
| 7994760 | Regulation scheme for a charge pump A boost regulator system for regulating one or more output voltages includes, a first pump element coupled to receive a first input voltage, a first switching device coupled to the first pump element, the first switching device causing a finite amount of energy to b... | 08/09/2011 |
| 7994759 | System and method for driving a power supply device in an initial activation stage The present application describes a system and method for driving a power supply device in an initial activation stage. In one embodiment, the method comprises providing in the power supply device at least one voltage regulator that is coupled with a voltage output ... | 08/09/2011 |
| 7956587 | Power supply apparatus A power supply apparatus that supplies an operating voltage to a microcomputer reliably resets the microcomputer before operation becomes unstable when an external power supply voltage decreases due to interruption. A switching regulator and series regulators are in... | 06/07/2011 |
| 7915877 | Power supply circuit A power supply circuit (1), particularly for a microcontroller of a transmission control unit, comprises a first output (3) supplying a first output voltage (UOUT1) and a second output (4) supplying a second output voltage (UOUT2... | 03/29/2011 |
| 7880451 | Method and apparatus for power conversion and regulation Techniques are disclosed to control a power converter with multiple output voltages. One example regulated power converter includes a an energy transfer element coupled between a power converter input and first and second power converter outputs. A switch is coupled... | 02/01/2011 |
| 7847528 | Single-board power supply structure and method for providing power supply A single-board power supply structure and a method for providing a power supply are provided. An operational processor sends control signals capable of controlling the output of the power supply to a DC/DC converter. The DC/DC converter converts a received bus volta... | 12/07/2010 |
| 7821239 | Switching power supply A switching power-supply unit uses a time when a transformer voltage Vt inverts due to a rectifier diode (Ds1) entering a non-conducting state as a trigger, and a first switching control circuit (CNT1) turns on a first switching element (Q1) aft... | 10/26/2010 |
| 7816895 | Power supplying device A power supplying device includes: an output transformer including first and second output coils for generating first intermediate voltages from an input voltage; a voltage adjusting transformer including primary and secondary coils; a first rectifying-and-filtering... | 10/19/2010 |
| 7782028 | DC-DC converter and power supply apparatus A DC-DC converter includes: an inductance element and a rectifier element connected in series between a voltage input terminal to accept input direct current voltage and a first output terminal; a switching element connected between a connection node of the inductan... | 08/24/2010 |
| 7782029 | Method and system for controlling and monitoring an array of point-of-load regulators A power control system comprises a plurality of POL regulators, at least one serial data bus operatively connecting the plurality of POL regulators, and a system controller connected to the serial data bus and adapted to send and receive digital data to and from the... | 08/24/2010 |
| 7759914 | Method and apparatus for power conversion and regulation of two output voltages A power supply converter is disclosed. An apparatus according to aspects of the present invention includes a power supply converter having an energy transfer element coupled between a power converter input and first and second power converter outputs. A switch is co... | 07/20/2010 |
| 7733070 | Multi-output type DC/DC converter A multi-output type DC/DC converter including: a reactor connected to a direct-current power supply; a first switching circuit to apply a current to the reactor; a second switching to switch an output from the reactor to any one of output terminals; output voltage d... | 06/08/2010 |
| 7701180 | DC-to-DC converter and method therefor In one embodiment a switched capacitor dc-dc converter uses the load current to assist in determining a supply configuration to use to form the output voltage. ... | 04/20/2010 |
| 7696733 | Resonant switching power source device A resonant switching power source device is provided which comprises first and second MOS-FETs 1 and 2 connected in series to a DC power source 3, a first transformer 5 which has a first primary winding 5a connected in paral... | 04/13/2010 |
| 7629781 | Multi-output switching power supply A multi-output switching power supply of the present invention includes: a series resonant circuit which is connected in parallel with a first switching element or a second switching element, and includes a current resonance capacitor, a resonant reactor and a prima... | 12/08/2009 |
| 7629780 | Power supply unit and printing apparatus with a supplemental power supply unit A power supply unit and a printing apparatus, including a first power supply unit and a second power supply unit. The second power supply unit accumulates a power from an outlet and converts an accumulated power to a DC power. An output current from the second power... | 12/08/2009 |
| 7629779 | Multiple output multiple topology voltage converter In some embodiments, a three-switch dual output buck converter includes a converter circuit having N+1 switch circuits, the converter circuit being configured to receive an input voltage and to provide N output voltages, where N is two or more, and a control circuit... | 12/08/2009 |
| 7622901 | System power supply apparatus and operational control method A system power supply apparatus includes a first constant voltage circuit that generates and increases a voltage up to a first constant level when receiving a first control signal. A second constant voltage circuit is provided to generate and increase a voltage up t... | 11/24/2009 |
| 7583066 | Method of operating a DC/DC up/down converter A method for an up-down converter which is based on a buck converter during the current down-conversion phase (Φ2, Φ3 and Φ5, Φ6, respectively) of the coil (L1) supplies an output (B) with a relatively high ... | 09/01/2009 |
| 7564229 | Method and apparatus for power conversion and regulation in a power converter having a plurality of outputs Techniques are disclosed to control a power converter with multiple output voltages. One example regulated power converter includes a an energy transfer element coupled between a power converter input and first and second power converter outputs. A switch is coupled... | 07/21/2009 |
| 7560914 | Current-fed multiple-output power converter A power converter is disclosed. According to one embodiment, the power converter includes a first stage comprising a current source and a second stage comprising n output circuits for converting the current signal into n corresponding output voltages. Each of the n ... | 07/14/2009 |
| 7538527 | Current-fed multiple-output power converter A power converter is disclosed. According to one embodiment, the power converter includes a first stage including a current source for generating a current signal, and a second stage. The second stage includes n output circuits coupled to the current source for conv... | 05/26/2009 |
| 7511463 | Multiple output buck converter In some embodiments, a three-switch dual output buck converter includes a converter circuit having N+1 switch circuits, the converter circuit being configured to receive an input voltage and to provide N output voltages, where N is two or more, and a control circuit... | 03/31/2009 |
| 7456617 | System for controlling and monitoring an array of point-of-load regulators by a host A power control system comprises a plurality of POL regulators, at least one serial data bus operatively connecting the plurality of POL regulators, and a system controller connected to the serial data bus and adapted to send and receive digital data to and from the... | 11/25/2008 |
| 7453243 | Switching power supply with multiple output voltages and an intermittent oscillation pulse in standby If an intermittent oscillation pulse in a case in which the power consumption in the standby state is reduced at the maximum is supplied to a connection point from an output port of a microcomputer through a capacitor and a resistor, a DC component of the intermitte... | 11/18/2008 |
| 7440294 | Power adapter and power supply system using the same The present invention is associated with a power adapter capable of simultaneously providing a low-level DC voltage and a high-level DC voltage. The power adapter includes a transformer having a primary winding for storing energy when a main switch coupled therewith... | 10/21/2008 |
| 7417878 | Distributed power supply and method of recovering from error A distributed power supply is incorporated in a device including a plurality of PCB. An on-board power supply is provided in the distributed power supply. The on-board power supply individually supplies a secondary power to each PCB using a primary power. Each PCB i... | 08/26/2008 |
| 7417414 | Semiconductor device provided with feedback circuit including resistive element and capacitive element The present invention provides a switching power supply circuit capable of stabilizing an output voltage as well as increasing a response speed of the output voltage by improving a phase margin of an open loop as a whole of the switching power supply circuit. The sw... | 08/26/2008 |
| 7400120 | Constant voltage control device A first output voltage Vcc is obtained via a first switching element from an external power supply, and a second output voltage Vme via a second switching element cascade-connected to the first switching element. The first switching element has a base current contin... | 07/15/2008 |
| 7391197 | Apparatus for regulating output voltages with a current conversion module and analog to digital converter An apparatus for regulating output voltages is used to regulate and output DC voltages, and can output a plurality of DC voltages through a simple structure. The apparatus for regulating output voltages can handle the current mode, and has the function of overcharge... | 06/24/2008 |
| 7389087 | Adaptive radio transceiver with filtering An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged ... | 06/17/2008 |
