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| Number | Title | Issue Date |
| 7848126 | Integrating current regulator and method for regulating current Current regulators and related method for regulating a current through a load. The current regulator may include, for example, a first circuit configured to determine an amount of current that flows through the load; and a second circuit configured to cause a voltag... | 12/07/2010 |
| 7432473 | Electrofusion machine with improved functions A portable electrofusion machine includes: a power supply circuit having a triac configured to have a proper regulation for dropping a commercial voltage to a voltage adapted for a fitting; and a printer unit integrated with the electrofusion unit, for printing info... | 10/07/2008 |
| 7358712 | Power supply control circuit and control method thereof A power supply control circuit includes: a conducting part configured to be controllable in its a conducting amount for conducting a power supply current to a load circuit; a current change ratio detecting part detecting a change rate of the power supply curr... | 04/15/2008 |
| 7356647 | Cache with integrated capability to write out entire cache A cache arrangement of a data processing system provides a cache flush operation initiated by a command from a maintenance processor. The cache arrangement includes a cache memory, a mode register, and a controller. The mode register is settable by the maintenance p... | 04/08/2008 |
| 7325749 | Distributed solid state programmable thermostat/power controller A self-contained power controller having a power driver switch, programmable controller, communication port, and environmental parameter measuring device coupled to a controllable device. The self-contained power controller needs only a single voltage source to powe... | 02/05/2008 |
| 7279874 | Power supply device with dead-time control and printing apparatus having the same In a power supply device including a PWM-controlled DC/DC converter which changes an output voltage on the basis of a setting signal, and a control unit, the DC/DC converter includes a circuit for changing a dead-time control voltage in accordance with a control sig... | 10/09/2007 |
| 7271646 | Loop powered process control instrument power supply A loop powered process instrument comprises a control circuit measuring a process variable and developing a control signal representing the process variable. An output circuit for connection to a two-wire process loop controls current on the loop in accordance with ... | 09/18/2007 |
| 7263620 | System and method for graceful shutdown of host processor cards in a server system A host processor card configured to be fitted into a server system includes a processor, and a memory coupled to the processor for storing an operating system. A power control line controls the power state of the host processor card. A graceful shutdown circuit is c... | 08/28/2007 |
| 7259470 | Power control device for vehicle In a power control device for a vehicle, a monitoring control device 2 disposed separately from a power converter 1 judges normality/abnormality of the power converter 1, and sets an abnormality-occurrence electric generation switching signal | 08/21/2007 |
| 7260731 | Saving power when in or transitioning to a static mode of a processor A method for reducing power utilized by a processor including the steps of determining that a processor is transitioning from a computing mode to a mode is which system clock to the processor is disabled, and reducing core voltage to the processor to a value suffici... | 08/21/2007 |
| 7259542 | System and method for controlling bidirectional three-phase DC/DC converter Disclosed are an apparatus and method for controlling a Direct Current (DC)/DC converter which controls energy flow between a first DC source and a second DC source to eliminate a high-frequency resonance. The apparatus for controlling the DC/DC converter includes a... | 08/21/2007 |
| 7245513 | Semiconductor integrated circuit device, contactless electronic device, and handheld terminal In a semiconductor integrated circuit device in which a rectifier device constituting a rectifier comprises a MOS transistor whose gate is connected to one antenna terminal and whose source is connected to the other antenna terminal, the parasitic capacitance applie... | 07/17/2007 |
| 7225088 | Programmable power supply and brownout detector for electronic equipment A programmable power supply and brownout detector for electronic equipment features independent, but coordinated, control of operating voltage and brownout reference voltage. Improper programming of the operating voltage and the brownout reference voltage levels is ... | 05/29/2007 |
| 7212012 | Method of and system for regulating output voltage A method of and system for regulating voltage supplied by a local power supply to a remote load includes sensing a low frequency portion of the output voltage at the remote load, locally sensing a high frequency portion of the output voltage produced by the local po... | 05/01/2007 |
| 7206210 | Power supply control loop with multiple leveling modes A method and apparatus for controlling a power supply. The system includes a power supply and a controller for outputting a command signal to regulate the operation of the power supply. The controller determines the command signal based on at least one error signal ... | 04/17/2007 |
| 7176424 | Induction heating cooking apparatus and method for operating the same An induction-heating cooking apparatus and a method for operating the same are disclosed. Upon receiving a low-voltage signal in a high-output level state, the apparatus controls an output signal to allow an inverter to be operated only in a ZVS (Zero Voltage Switch... | 02/13/2007 |
| 7126798 | On die voltage regulator According to one embodiment, an integrated circuit (IC) is disclosed. The IC includes a package, a die mounted within the package, circuit components mounted on the die, and a voltage regulator mounted on the die to supply power to the circuit components. ... | 10/24/2006 |
| 7113024 | Circuit module with high-frequency input/output interfaces The invention relates to a circuit module with high-frequency input/output interfaces, and in particular to a circuit realized on a chip, principally a monolithic integrated circuit having a phase-regulated circuit which is fed by externally applied voltages and an ... | 09/26/2006 |
| 7107015 | ISM band to U-NII band frequency transverter and method of frequency transversion A frequency transverter (10) and method for enabling bi-frequency dual-directional transfer of digitally encoded data on an RF carrier by translating between a crowded or otherwise undesirable first frequency band, such as the 2.4 GHz ISM band, and a less-cro... | 09/12/2006 |
| 7100061 | Adaptive power control A method for controlling the power used by a computer including the steps of measuring the operating characteristics of a central processor of the computer, determining when the operating characteristics of the central processor are significantly different than requ... | 08/29/2006 |
| 7078957 | Internal voltage generator of semiconductor device comprising characteristic controller An internal voltage generator of a semiconductor device features a tuning unit, a characteristic controller and an internal voltage generating unit. The tuning unit receives a test mode signal, an external signal and a signal stored in an internal setup device, and ... | 07/18/2006 |
| 7005838 | Voltage generation circuit A differential amplifier is used to determine the level of an output voltage of a charge pump circuit, and is operated in the voltage follower mode with a reference voltage being an input thereto for charging a capacitance element with a resultant output voltage of ... | 02/28/2006 |
| 6747882 | Power conversion device A power conversion device including, a power converter controlling a motor in variable speed control, first to second control circuits outputting first to second control signals, first to second detectors detecting a state of the power converter and outputting first... | 06/08/2004 |
| 6700807 | Flexible converter The present invention is directed to a flexible converter. A flexible converter of the present invention may provide a desired output utilizing a variety of methods, systems and apparatus without departing from the spirit and scope of the present inventio... | 03/02/2004 |
| 6580623 | Flexible converter routing apparatus, system and method The present invention is directed to a flexible converter suitable for providing a routing function. A flexible converter of the present invention may provide a desired output utilizing a variety of methods, systems and apparatus without departing from th... | 06/17/2003 |
| 6515881 | Inverter operably controlled to reduce electromagnetic interference A lamp load control system that includes a lamp controller comprising an inverter generating an AC signal from a DC signal, a load coupled to the inverter, and a feedback circuit coupled to the load generating a feedback signal indicative of power supplie... | 02/04/2003 |
| 6504734 | Switched power converter utilizing a piezoelectric transformer The switched power converter comprises a first rectifier module (11-1) connected to a first capacitor (11-2) that, in turn, is connected to an excitation module (11-3) that applies a voltage to some input terminals (PT-1, PT-2) of a piezoelectric transfor... | 01/07/2003 |
| 6426887 | Power control device, remote control receiving device and optical communication device with zero power consumption during standby A remote control receiving device mounted on an apparatus has a switch circuit and an LED. The switch circuit is connected between a power supplied circuit of the apparatus and a power source. The LED functioning as a light receiving element receives an o... | 07/30/2002 |
| 6424548 | Power converter The present invention relates to a bi-directional AC/DC converter having (i) a power stage, (ii) a sourcing control circuit and (iii) a recuperation control circuit. The converter operates with a Power Factor Correction in both directions, i.e. when trans... | 07/23/2002 |
| 6333864 | Power supply adjusting circuit and a semiconductor device using the same A power supply adjusting circuit includes a reference voltage supplying part generating a reference voltage based on an external voltage, a plurality of internal voltage generating parts generating a plurality of respective internal voltages based on the ... | 12/25/2001 |
| 6147885 | Method and apparatus for controlling providing of conditioned AC power A method and apparatus for controlling the providing of conditioned AC power, with the conditioned AC power being capable of being provided on a continuous basis. Unconditioned AC voltage is received by transverters. The transverters convert the unconditi... | 11/14/2000 |
| 6125048 | Method and apparatus for adjusting power delivered from a central power unit to a remote unit via a supply cable A power delivery apparatus and method which calibrates a voltage delivered from a central unit to a remote unit to compensate for losses in the supply lines between the central unit and remote unit is disclosed. The impedance of the supply lines is determ... | 09/26/2000 |
| 6108223 | IGBT-controlled thyristor AC/DC converter A hybrid diode/thyristor AC/DC converter includes a thyristor bridge (21) poled oppositely to a diode bridge (13), current through the thyristor bridge being controlled by IGBTs (30, 31). A thyristor turn-off circuit (40-42, 45-47) is responsive to turn-o... | 08/22/2000 |
| 6094367 | Voltage regulating device for dynamically regulating voltage in a computer system The invention provides a voltage regulating device for regulating the operating voltage of a CPU in a computer system. The voltage regulating device includes a voltage identification signal regulator and a voltage identification signal bridge. The voltage... | 07/25/2000 |
| 6021057 | Inverter system A converter system, in particular for supplying electrical drives with direct current or DC voltage, or with alternating current or AC voltage, at a specifically matched frequency or for dynamic power factor correction. The converter system has at least o... | 02/01/2000 |
| 6005303 | Linear voltage regulator compatible with bipolar and MOSFET pass devices and associated methods A linear voltage regulator includes a pass device for supplying current to a load, and an error amplifier for generating a control signal for controlling the pass device for regulating an output voltage at the load. The error amplifier is connected to a f... | 12/21/1999 |
| 5956242 | Switched-mode power supply having a sample-and-hold circuit with improved sampling control A switched-mode power supply includes a transformer having a primary winding, a secondary winding and an auxiliary winding. A switching device is included in series with the primary winding for alternately interrupting the flow of current through the prim... | 09/21/1999 |
| 5943227 | Programmable synchronous step down DC-DC converter controller An monolithic programmable dc--dc converter controller integrated circuit with a high speed synchronous controller and a 4-bit programmable DAC to provide an operating voltage to an external device such as a microprocessor in response to a code programmed... | 08/24/1999 |
| 5889666 | Method and apparatus for controlling providing of conditioned AC power A method and apparatus for controlling the providing of conditioned AC power, with the conditioned AC power being capable of being provided on a continuous basis. Unconditioned AC voltage is received by transverters. The transverters convert the unconditi... | 03/30/1999 |
| 5886514 | Piezoelectric transformer driving curcuit and method capable of stabilizing load current In a piezoelectric transformer driving circuit which comprises a boosting circuit (2) for boosting an input direct current voltage, a piezoelectric transformer (3), a current voltage converting circuit for converting a load alternating current which flows... | 03/23/1999 |
