| Patents for G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems (37,749) |
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| 04/02/2009 | US20090086518 Switching mode power supplies with digital electromagnetic interference control |
| 04/02/2009 | US20090085655 Power supply circuit with stand-by control circuit and energy storage circuit |
| 04/02/2009 | US20090085654 Biasing Circuit with Fast Response |
| 04/02/2009 | US20090085653 Semiconductor device, control method of semiconductor device, and control information generating method for semiconductor device |
| 04/02/2009 | US20090085652 Compensation of operating time related degradation of operating speed by adapting the supply voltage |
| 04/02/2009 | US20090085650 Internal voltage generating circuit for semiconductor device |
| 04/02/2009 | US20090085649 Negative Output Regulator Circuit and Electrical Apparatus Using Same |
| 04/02/2009 | US20090085547 Switching Power Supply Unit |
| 04/02/2009 | US20090085546 Fast Transient Step Load Response in a Power Converter |
| 04/02/2009 | US20090085545 Voltage regulator |
| 04/02/2009 | US20090085544 Current regulator and method for regulating current |
| 04/02/2009 | US20090085543 Variable Output Voltage Power Converter |
| 04/02/2009 | US20090085542 Drive system for power semiconductor device |
| 04/02/2009 | US20090085541 Semiconductor Device, Method for Fabricating the Same, and Transformer Circuit Using the Same |
| 04/02/2009 | US20090085540 Voltage Rising/Falling Type Switching Regulator and Reverse Current Prevention Method |
| 04/02/2009 | US20090085539 Feedback and comparison apparatus and dc-dc voltage converter |
| 04/02/2009 | US20090085538 Power Supply Device, Electronic Device, and A/D Converter Used for Them |
| 04/02/2009 | US20090085537 Power supply apparatus |
| 04/02/2009 | US20090085536 Systems and methods for improved coupled inductor topology efficiency utilizing a light load signal |
| 04/02/2009 | US20090085535 Dc/dc boost converter with pulse skipping circuitry |
| 04/02/2009 | US20090085534 Wideband low dropout voltage regulator |
| 04/02/2009 | US20090085533 Parallel supply current sharing using thermal feedback |
| 04/02/2009 | US20090085532 Dc-dc converter |
| 04/02/2009 | US20090085501 Constant current driver circuit with voltage compensated current sense mirror |
| 04/02/2009 | US20090085407 Method and device for assessing and monitoring voltage security in a power system |
| 04/02/2009 | DE202005021665U1 Stromquellenanordnung Current source arrangement |
| 04/02/2009 | DE112007001333T5 Stromversorgungsgerät, Prüfvorrichtung und Stabilisierungsvorrichtung Power supply, tester and stabilizing device |
| 04/01/2009 | EP2042965A2 Method and apparatus for power conversion with maximum power point tracking and burst mode capability |
| 04/01/2009 | EP2042964A2 Method and apparatus for maximum power point tracking in power conversion based on dual feedback loops and power ripples |
| 04/01/2009 | EP2041685A2 Prognostic health monitoring in switch-mode power supplies with voltage regulation |
| 04/01/2009 | CN201215989Y Voltage stabilizing circuit and television set having the voltage stabilizing circuit |
| 04/01/2009 | CN201215929Y Photovoltaic integrating net power generating system realizing on-line capacity enlarging |
| 04/01/2009 | CN201215634Y Temperature adding controller for plant |
| 04/01/2009 | CN101401052A Circuit and method for changing transient response characteristics of a DC/DC converter module |
| 04/01/2009 | CN101399497A Electric power circuit |
| 04/01/2009 | CN101398695A Semiconductor integrated circuit device |
| 04/01/2009 | CN101398694A Non-capacitance low voltage difference constant voltage regulator with rapid excess voltage response |
| 04/01/2009 | CN101398693A Voltage conversion device with soft startup function |
| 04/01/2009 | CN101398692A Electronic system |
| 04/01/2009 | CN100474754C Method for realizing high-quality current stabilization feedback signal of rectifier unit |
| 04/01/2009 | CN100474753C 电源电路及电子装置 The power supply circuit and electronic device |
| 04/01/2009 | CN100474750C Power supply method and electric source equipment capable of fast responding input and output voltage change |
| 04/01/2009 | CN100474746C Multiplier-divider circuit for a PFC controller |
| 04/01/2009 | CN100474730C A device and a method for control of power flow in a transmission line |
| 04/01/2009 | CN100474209C Step-up/step-down switch stabilizer control circuit and step-up/step-down switch stabilizer |
| 04/01/2009 | CN100474208C Led driving apparatus and method of controlling luminous power |
| 04/01/2009 | CN100474207C Circuit for realizing autonomous equalizing current of parallel electric source module |
| 04/01/2009 | CN100474206C Semiconductor device |
| 04/01/2009 | CN100474205C Digital dimming fluorescent ballast |
| 03/31/2009 | US7512821 Power supply system and method for supplying power to CPU providing power saving mode |
| 03/31/2009 | US7511569 Circuit for supplying a voltage in a memory device |
| 03/31/2009 | US7511568 Reference voltage circuit |
| 03/31/2009 | US7511567 Bandgap reference voltage circuit |
| 03/31/2009 | US7511566 Semiconductor circuit with positive temperature dependence resistor |
| 03/31/2009 | US7511565 Integrated circuit apparatus and method of compensating a current |
| 03/31/2009 | US7511564 Voltage-booster power supply circuit |
| 03/31/2009 | US7511563 Ripple current reduction circuit |
| 03/31/2009 | US7511562 High voltage generating circuit preserving charge pumping efficiency |
| 03/31/2009 | US7511561 Boosting circuit |
| 03/31/2009 | US7511560 Charge pump circuit |
| 03/31/2009 | US7511559 Booster circuit |
| 03/31/2009 | US7511472 Power measuring apparatus |
| 03/31/2009 | US7511466 Method and apparatus for predicting discharge time of magnetic device for power converter |
| 03/31/2009 | US7511465 Digital pulse width modulated power supply with variable LSB |
| 03/31/2009 | US7511464 Voltage regulator |
| 03/31/2009 | US7511463 Multiple output buck converter |
| 03/31/2009 | US7511462 DC power conversion circuit having self-auxiliary power and self-protection |
| 03/31/2009 | US7511461 Switching regulator control circuit which prevents shoot-through current in a synchronous rectifier |
| 03/31/2009 | US7511460 Circuits, systems, methods, and software for power factor correction and/or control |
| 03/31/2009 | US7511436 Current control method and circuit for light emitting diodes |
| 03/31/2009 | US7511435 Backlight unit and liquid crystal display device having the same |
| 03/31/2009 | US7511434 Lamp driving apparatus, liquid crystal display comprising the same, and driving method thereof |
| 03/27/2009 | CA2638485A1 Constant current driver circuit with voltage compensated current sense mirror |
| 03/26/2009 | WO2009039112A1 Digital driver apparatus, method and system for solid state lighting |
| 03/26/2009 | WO2009039061A2 Start-up circuit and method for a self-biased zero-temperature-coefficient current reference |
| 03/26/2009 | WO2009037758A1 Power unit and electronic device |
| 03/26/2009 | WO2009037757A1 Power unit and electronic device |
| 03/26/2009 | WO2009037756A1 Power unit and electronic device |
| 03/26/2009 | WO2009037755A1 Power unit and electronic device |
| 03/26/2009 | US20090082910 Information processing apparatus |
| 03/26/2009 | US20090080276 Temperature Dependent Bias for Minimal Stand-by Power in CMOS Circuits |
| 03/26/2009 | US20090079495 Power supply circuit, display driver, electro-optical device, and electronic instrument |
| 03/26/2009 | US20090079411 Voltage dividing circuit and magnetic sensor circuit |
| 03/26/2009 | US20090079410 DC/DC Converter |
| 03/26/2009 | US20090079409 Voltage/current control apparatus and method |
| 03/26/2009 | US20090079408 Voltage mode pwmff-pfm/skip combo controller |
| 03/26/2009 | US20090079407 Semiconductor integrated circuit device |
| 03/26/2009 | US20090079405 Linearized controller for switching power converter |
| 03/26/2009 | US20090079404 Single-inductor multiple-output dc/dc converter method |
| 03/26/2009 | US20090079403 Apparatus to provide a current reference |
| 03/26/2009 | US20090079402 Switching power supply |
| 03/26/2009 | US20090079401 Switch mode power supply (smps) and methods thereof |
| 03/26/2009 | US20090079367 Software Controlled Electronic Dimming Ballast |
| 03/26/2009 | US20090079364 Driving device, driving circuit, LED head, and image forming apparatus |
| 03/25/2009 | EP2038721A1 Apparatus and method for controlling activation of an electronic device |
| 03/25/2009 | EP2038720A2 Configurable voltage regulator |
| 03/25/2009 | EP2038719A2 Voltage up-conversion circuit using low voltage transistors |
| 03/25/2009 | CN201213240Y Standard power source output circuit |
| 03/25/2009 | CN101395555A A hybrid on-load tap changer and a method of operating the same |
| 03/25/2009 | CN101395554A 功率变换器系统 Power converter system |