| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 323350000 | Including plural final control devices | 16 |
| 20080231252 | Sag-Swell and Outage Generator for Performance Test of Custom Power Devices - The present invention relates to a sag-swell generator for generating power signal with sag, swell and outage for use in testing custom power devices. | 09-25-2008 |
| 20080265862 | Parallell Arranged Power Supplies - A power supply system comprises a parallel arrangement of a first switched mode power supply ( | 10-30-2008 |
| 20080284407 | ELECTRONIC CIRCUIT POWER SUPPLY DEVICE AND ELECTRONIC CIRCUIT - An electronic circuit power supply device configured to selectively apply at least one first voltage or one second voltage to a power supply terminal of the electronic circuit that includes elements for applying to the power supply terminal a voltage variable from a value equal to the first voltage to a value equal to the second voltage and elements designed for selecting application of the second voltage to the power supply terminal when the variable voltage reaches the second voltage. | 11-20-2008 |
| 20090085552 | POWER MANAGEMENT USING DYNAMIC EMBEDDED POWER GATE DOMAINS - In some embodiments of the invention, a processor with a power management scheme using dynamically switchable embedded power gates. | 04-02-2009 |
| 20090153127 | METHOD AND APPARATUS FOR EXTERNAL CONTROL MODE STEP DOWN SWITCHING REGULATOR - A switching regulator integrated circuit (IC) is disclosed that includes a switch circuit that further includes a first switch and a second switch, a mode selector circuit controlled by external circuitry to select between a first mode and a second mode, and a control circuit. In response to a feedback signal from the switch circuit, when the first mode is selected, the control circuit toggles the first switch and the second switch ON and OFF alternately at a fixed first frequency. When a second mode is selected, the control circuit causes the second switch to turn OFF completely and the first switch to switch ON and OFF at a variable second frequency. | 06-18-2009 |
| 20090237064 | Switched mode power supply for a transmitter - A switched mode power supply (SMPS) suitable for use with a transmitter is disclosed. A digital signal processing unit, using a reference voltage and a voltage signal from the power source as inputs, determines the duty cycle for a voltage converter, such as a buck-boost converter, of the SMPS. | 09-24-2009 |
| 20090256547 | STANDBY REGULATOR - A standby regulator circuit includes a standby bias circuit and a standby operational amplifier. The standby regulator circuit provides a standby regulated control voltage to a multiplexer. A regular operational amplifier provides a regulated control voltage to the multiplexer. During regular operation, the multiplexer selects the regular operational amplifier and selects the standby regulator circuit in a low-power mode. The multiplexer couples to a native pass transistor gate having a threshold voltage about equal to 0 V. The native pass transistor provides a regulated output voltage with relatively low-level input control voltages. In low-power mode, a power-down signal, provided to the multiplexer, smoothly transitions regulated control voltage from the regular operational amplifier to regulated control voltage sourcing from the standby operational amplifier. In low-power operation regular operational amplifier power is saved and the standby operational amplifier is appropriate for regulating the low threshold voltage native pass transistor. | 10-15-2009 |
| 20100253316 | Current control circuit - A current control circuit in accordance an exemplary aspect of the present invention includes a first transistor that controls a current flowing to a load, a first resistor through which a current flows according to a current flowing through the first transistor, a control signal generation circuit that generates a control signal used to control the first transistor based on a comparison voltage and a predetermined reference voltage, the comparison voltage being determined based on a resistance value of the first resistor and a current flowing through the first resistor, and a reference voltage generation circuit that generates the reference voltage, the reference voltage generation circuit including a constant current source and a second resistor connected in series with the constant current source. | 10-07-2010 |
| 20100289476 | METHOD AND APPARATUS FOR REGULATING A POWER SUPPLY OF AN INTEGRATED CIRCUIT - Disclosed is a circuit for adjusting a voltage supplied to an IC by a power supply circuit that produces a regulated-output voltage based on an output-control signal generated by a resistive voltage divider. The circuit includes a PVT detector configured to generate an interface control signal and an interface circuit (i) connected to PVT detector and to the resistive voltage divider and (ii) configured to adjust its resistance in response to the interface control signal. Adjusting the resistance of the interface circuit causes the voltage of the output-control signal to be adjusted, thus causing the power supply circuit to adjust the regulated output voltage. | 11-18-2010 |
| 20110109297 | PARALLEL AC SWITCHING WITH SEQUENTIAL CONTROL - Parallel switches arranged to transfer power between an AC power source and a load may be individually operated during different portions of the AC waveform. In some embodiments, the switches may be operated during alternate cycles of the waveform to cause the individual switches to sequentially conduct the entire load current. | 05-12-2011 |
| 20120293156 | Assisting an Output Current of a Voltage Converter - Methods, apparatuses and systems for assisting an output current of a voltage converter, are disclosed. One method includes detecting a request for a positive change in an output voltage of the voltage converter, selecting an output current assist value based on the requested positive change in the output voltage, for a predetermined load, and assisting the output current with the selected output assist current. | 11-22-2012 |
| 20130009624 | POWER SOURCE SWITCH DEVICE AND POWER SOURCE SYSTEM PROVIDED WITH SAME - Provided are semiconductor elements | 01-10-2013 |
| 20130154606 | POWER CIRCUIT - According to one embodiment, there is provided a power circuit including a DC/DC converter, an A/D converter, a control unit, a determining unit, and a conversion timing adjusting unit. The determining unit determines whether a transition timing of the conversion candidate timing signal overlaps a transition timing of the first switching signal or a transition timing of the second switching signal. The conversion timing adjusting unit adjusts the conversion candidate timing signal so that the transition timing of the conversion candidate timing signal does not overlap the transition timing of the first switching signal and the transition timing of the second switching signal when the transition timing of the conversion candidate timing signal overlaps the transition timing of the first switching signal or the transition timing of the second switching signal to thereby generate the conversion timing signal. | 06-20-2013 |
| 20130207637 | POWER CONVERSION DEVICE - With a power conversion device, it is possible to lengthen the lifespan of a mechanical switch by preventing an absorption by the mechanical switch of induction energy accumulated in a reactor when there is a problem. When a mechanical switch is turned off when there is a problem, an absorption by the mechanical switch of induction energy accumulated in a reactor is prevented by the energy accumulated in the reactor being released to a capacitor via a diode, thus enabling a lengthening of the lifespan of the mechanical switch. | 08-15-2013 |
| 20140176114 | TIME SEQUENCE CIRCUIT FOR POWER SUPPLY UNIT - A time sequence circuit for a power supply unit includes first through tenth resistors, first and second electronic switches, first through fourth diodes, and a capacitor. Each of the first and second electronic switches includes first through third terminals. When the power supply unit outputs all voltages, the power supply unit outputs a high-voltage level power good signal. If one of the voltages is not outputted, the power supply unit outputs a low-voltage level power good signal. | 06-26-2014 |
| 20150042306 | REFERENCE CURRENT GENERATING CIRCUIT AND METHOD FOR DRIVING THE SAME - A current generating circuit includes a reference voltage generating unit, a clock signal generating unit, a reference current generating unit, and a current mirror unit. The reference voltage generating unit generates a first reference voltage and a second reference voltage. The clock signal generating unit generates clock signals. The reference current generating unit generates a reference current corresponding to a selection signal based on the first reference voltage. The current mirror unit supplies a first current and a second current based on the reference current. A capacitor charges voltage based on the second current. A selection signal generating unit counts clock signals during a period in which a voltage charged in the capacitor is less than the second reference voltage, and outputs the selection signal based on the counted result. | 02-12-2015 |
