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| Number | Title | Issue Date |
| 8188720 | Multi-phase DC-DC converter control A system and method of controlling a multi-phase DC-DC converter having a first phase-leg and a second phase-leg using a single current sensor and a controller is provided. The single current sensor senses an amount of current flowing through the direct current link... | 05/29/2012 |
| 8183841 | Multi-phase power supply controller and method therefor In one embodiment, a multi-phase power supply controller is configured to an operating status signal and responsively inhibit the PWM controller from forming at least one PWM drive signal of a plurality of PWM drive signals. ... | 05/22/2012 |
| 8183842 | Control device for a multi-phase DC-DC converter and related multi-phase DC-DC converter A control device for a multi-phase DC-DC converter is disclosed. The multi-phase DC-DC converter includes a plurality of converting channels. The control device includes an error amplifier for comparing a feedback signal of the multi-phase DC-DC converter and a refe... | 05/22/2012 |
| 8148957 | Power switch-mode circuit with devices of different threshold voltages The high side or low side FET of a buck converter, or both, are replaced by plural parallel devices of different threshold voltage and are turned on and off in a sequence which offers the best turn on and turn off characteristics related to high and low threshold vo... | 04/03/2012 |
| 8148958 | System and method for transmitting current sharing information among paralleled power trains An embodiment of the invention relates to a power control device configured to provide current-sharing control in a power converter including a plurality of power trains. The power control device transmits or receives a synchronization signal on a synchronization no... | 04/03/2012 |
| 8148959 | 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. ... | 04/03/2012 |
| 8138731 | Power regulation for large transient loads Methods and circuits for power supply arrangement and control are disclosed herein. In one embodiment, a power supply can include: (i) an input capacitor coupled to an input terminal that is coupled to a power source, where the power source provides power that is co... | 03/20/2012 |
| 8134352 | Switched mode power supply including power supply units and controller A switched mode power supply assembly (1) is described, comprising at least two switched mode power supply units (10i) coupled to each other in parallel; each power supply unit (10i) having an output stage (50i | 03/13/2012 |
| 8129964 | Interleaved/all-phase mode switched PWM system A multi-phase power switching converter having first and second states includes a pulse width modulator having an output, a converter output providing an output signal, and a plurality of drivers, each having an output electrically coupled to the converter output an... | 03/06/2012 |
| 8125203 | PFC controller, switching regulator and power supply circuit A PFC counter which controls a switching element of voltage step-up chopper circuits arranged in parallel has a circuit (SLOG) generating a switch signal (GD_S) whose phase is shifted from that of a switch signal of one of the switching elements. This circuit has a ... | 02/28/2012 |
| 8120338 | Dropper-type regulator A dropper-type regulator capable of providing a soft start function using a simple circuit configuration. An exemplary regulator includes a first FET having a relatively high current driving capability and a second FET having a relatively low current driving capabil... | 02/21/2012 |
| 8120339 | Switching power supply with switching circuits A switching power supply has first and second switching units and a control unit. Each switching unit has a switching element performing a switching operation to intermittently receive electric current from a battery while accumulating electric power in a coil and d... | 02/21/2012 |
| 8120340 | Control device for an interleaving power factor corrector In an interleaving power factor corrector, a control device interleavingly drives first and second converting circuits such that the power factor corrector generates a voltage output (Vo), and includes first and second control modules generating respectively first a... | 02/21/2012 |
| 8115462 | Voltage regulator for an integrated circuit A voltage regulator is disclosed. The voltage regulator includes a comparator for providing a gated output signal; and a state machine for receiving the gated output signal. The voltage regulator further includes at least one switch cell controlled by the state mach... | 02/14/2012 |
| 8111055 | Method for controlling a direct current chopper controller A method of controlling a direct current (“DC”) chopper controller having a switch and a storage choke in which the choke has a current dependent on the switching of the switch on and off includes the following. A current variable derived from one of the time av... | 02/07/2012 |
| 8111056 | Converter control device for a bidirectional power supply system having plural parallel phases 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... | 02/07/2012 |
| 8085015 | Current balancing circuit and method A multi-phase power converter and a method for balancing a plurality of currents in the multi-phase power converter. The multi-phase power converter has a pulse width modulation circuit, a current ordering circuit, and a plurality of currents, wherein each current o... | 12/27/2011 |
| 8085016 | Power supply circuit having standby detection circuit A power supply circuit includes a voltage output controller configured for outputting voltages, a standby controller configured for directing the voltage output controller to provide voltage to a load, and a microprocessor configured for controlling the standby cont... | 12/27/2011 |
| 8085017 | Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators A pulse control system for a multiphase regulator including an error amplifier, a multiphase generator, and an adaptive controller. The error amplifier provides an error signal indicative of output voltage error. The multiphase generator develops modulation pulses f... | 12/27/2011 |
| 8063617 | Quick response width modulation for a voltage regulator A per-phase quick response generation circuit generates a quick response signal to determine a quick response pulse to be inserted into a pulse width modulation signal of the corresponding phase. The quick response pulse will force the upper power switch of the corr... | 11/22/2011 |
| 8058856 | Multi-phase DC-DC converter and method for balancing channel currents A multi-phase DC-DC converter is provided. A plurality of switching sets are coupled to an output, wherein each switching set includes a phase node. A plurality of inductors are separately coupled between the phase nodes and the output. A sense circuit has a plurali... | 11/15/2011 |
| 8049474 | Switching converter with plural converter stages having calibrated current uptake A switching converter according includes a control arrangement to furnish a control signal dependent on the output voltage, as well as a first and at least one second converter stage. Each converter includes an inductive storage element, a ramp signal generator to f... | 11/01/2011 |
| 8044645 | Multi-phase voltage regulator A multiphase voltage regulator provides a voltage to an output terminal. The voltage regulator includes N parallel switches providing respective current phases that are added together to generate a total current for a general load coupled to the output terminal. The... | 10/25/2011 |
| 8035361 | Boost device for voltage boosting A boost device boosts an input voltage to an output voltage across an output capacitor, and includes first and second output diodes coupled to the output capacitor, and a transformer coupled to first and second switches, first and second switching circuits, and to t... | 10/11/2011 |
| 8013581 | Power supply circuit with stand-by control circuit and energy storage circuit An exemplary power supply circuit configured for supply power for a load includes: a main power supply configured for converting received voltages into required direct current voltages; a microprocessor configured for providing control signals; a stand-by control ci... | 09/06/2011 |
| 7999524 | Interleaved power factor correction pre-regulator phase management circuitry Methods for power factor correction (PFC) and for reducing conduction losses and switching losses in a power converter as well as the power converter and phase management circuitry for the power converter. The power converter includes a first PFC pre-regulator inter... | 08/16/2011 |
| 7969130 | Voltage supply interface with current sensitivity and reduced series resistance A voltage supply interface provides both coarse and fine current control with reduced series resistance. The voltage supply interface has a segmented switch having N component switches that are digitally controlled. The voltage supply interface replaces a convention... | 06/28/2011 |
| 7960952 | Switching mode power supply and switch thereof A switching mode power supply and a switch thereof are provided. The switch includes a plurality of first transistors, and a second transistor that is turned on/off by a control signal that is equal to that of the plurality of first transistors and in which a second... | 06/14/2011 |
| 7960951 | Digital calibration with lossless current sensing in a multiphase switched power converter Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a method of calibrating a multiphase voltage regulator by applying a kn... | 06/14/2011 |
| 7948222 | Asymmetric topology to boost low load efficiency in multi-phase switch-mode power conversion Techniques for performing DC to DC power conversion in switch-mode converter circuits include combinations of dynamic switch shedding, phase shedding, symmetric phase circuit topologies, and asymmetric phase circuit topologies. In at least one embodiment of the inve... | 05/24/2011 |
| 7928705 | Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode A voltage conversion circuit for a host electronic device includes a buck converter circuit having an input terminal coupled to a first node and having an output terminal coupled to a second node, a switched capacitor voltage converter circuit having an input couple... | 04/19/2011 |
| 7919956 | Start-up circuit and method for high voltage power distribution circuit A start-up circuit for a high voltage power distribution circuit includes a transistor, a current source which generates ramped current, an operational amplifier which is connected between the current source and the transistor and controls the transistor, a capacito... | 04/05/2011 |
| 7919955 | Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied... | 04/05/2011 |
| 7919954 | LDO with output noise filter A low-drop out (LDO) regulator is provided. In one embodiment, the LDO regulator includes an error amplifier, a pass transistor, a reference voltage circuit, an output noise filter, and a voltage divider. The voltage divider provides a feedback voltage based on the ... | 04/05/2011 |
| 7915878 | Switching regulator and method of converting DC voltage A switching regulator includes an inverter circuit and a size adjustment circuit. The inverter circuit converts an input voltage into an output voltage by a switching operation of a switch circuit. The size adjustment circuit controls an ON resistance of the switch ... | 03/29/2011 |
| 7911190 | Regulator with automatic power output device detection A switching regulator (20) including an on-chip power output function (24) and also an interface (26) to which off-chip power output devices (42PU, 42PD) may be connected is disclosed. The switching regulator (20) includes a... | 03/22/2011 |
| 7906947 | 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. ... | 03/15/2011 |
| 7893669 | Efficient voltage converter methods and structures Voltage converter are provided for efficient generation of voltage signals in a load. The converters are formed with a group of inductors and at least two sets of buck and sync transistors that are arranged with the group so that conducted currents through each of t... | 02/22/2011 |
| 7884588 | Control method and device for a system of interleaved converters using a designated master converter Control device for a switching converter structure comprising at least a first and a second interleaved converter, wherein the control device is configured to designate one converter as master and at least the other converter as slave, to set a time delay of the ope... | 02/08/2011 |
| RE42063 | Multi-phase converter with balanced currents A multi-phase DC/DC converter having an output voltage and including a plurality of converter channels. Each converter channel includes a converter channel input and a converter channel output. Each converter channel is configured for generating a converter channel ... | 01/25/2011 |
