| 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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| 04/30/2009 | US20090108818 Switching power supply circuit |
| 04/30/2009 | US20090108817 Method for actuation by boosting power source voltage |
| 04/30/2009 | DE10240425B4 Schaltwandler mit einem separaten Transformator zur Sicherung des Standby-Betriebs Switching converter having a separate transformer for securing the standby operation |
| 04/30/2009 | CA2642332A1 Output control apparatus of generator |
| 04/29/2009 | CN201230220Y Light vehicle voltage regulator for enhancing current amount in assistance |
| 04/29/2009 | CN201229514Y Low loss series voltage stabilizing and over-current protection circuit |
| 04/29/2009 | CN201229513Y Low voltage difference linear voltage regulator |
| 04/29/2009 | CN201229512Y 电压调节器 Voltage Regulator |
| 04/29/2009 | CN101421901A Power supply circuit, charging unit having the power supply circuit, and power supply method |
| 04/29/2009 | CN101421897A Power supply device and power supply device control method |
| 04/29/2009 | CN101421684A Power converting device, and control method therefor |
| 04/29/2009 | CN101421683A Low-dropout voltage regulator with a voltage slew rate efficient transient response boost circuit |
| 04/29/2009 | CN101420224A Output buffer circuit, low power biasing circuit thereof and input buffer circuit |
| 04/29/2009 | CN101420182A Voltage stabilizing method and device for single phase DC-to-AC converter |
| 04/29/2009 | CN101420179A Capacitor charging circuit and control circuit, control method and electronic equipment |
| 04/29/2009 | CN101419479A Low-voltage difference linear constant voltage regulator with novel structure |
| 04/29/2009 | CN101419478A Fiducial reference source circuit with gap and design method |
| 04/29/2009 | CN101419477A Controllable low voltage differential linear voltage stabilizing circuit for providing multi-output voltages |
| 04/29/2009 | CN100483903C Optional input power and product power supply, and its method |
| 04/28/2009 | US7525371 Multi-threshold CMOS system and methods for controlling respective blocks |
| 04/28/2009 | US7525370 Circuits for generating a reference voltage |
| 04/28/2009 | US7525296 Spread spectrum power converter with duty-cycle error compensation |
| 04/28/2009 | US7525295 Switching DC-DC converter with parallel switches |
| 04/28/2009 | US7525294 High-voltage regulator system compatible with low-voltage technologies and corresponding electronic circuit |
| 04/28/2009 | US7525293 Power supply switching circuit for a halogen lamp |
| 04/28/2009 | US7525260 Discharge lamp lighting apparatus |
| 04/28/2009 | US7525259 Primary side regulated power supply system with constant current output |
| 04/28/2009 | US7525254 Vehicle lighting methods and apparatus |
| 04/23/2009 | WO2009035906A3 Composite, thermal interface material containing the composite, and methods for their preparation and use |
| 04/23/2009 | WO2008047374A3 Switched resonant-tank, cell based power converter |
| 04/23/2009 | WO2007132345A3 Power converters having balanced power rail currents |
| 04/23/2009 | WO2007056165A3 Signal-to-noise improvement for power loss minimizing dead time |
| 04/23/2009 | WO2007016401A3 Pre-charge method for isolated boost converter |
| 04/23/2009 | WO2005101623A3 Method and apparatus for starting power converters |
| 04/23/2009 | US20090106564 Acoustic noise reduction in power supply inductors |
| 04/23/2009 | US20090102544 Semiconductor device including detector circuit capable of performing high-speed operation |
| 04/23/2009 | US20090102448 Voltage regulator and method for generating indicator signal in voltage regulator |
| 04/23/2009 | US20090102447 Constant-on-time power-supply controller and related system and method |
| 04/23/2009 | US20090102446 Digital Controlled Power Supply |
| 04/23/2009 | US20090102445 Switching dc-dc converter and oscillator |
| 04/23/2009 | US20090102444 Dc-dc converter |
| 04/23/2009 | US20090102443 H-bridge pulse generator |
| 04/23/2009 | US20090102441 DC to DC converter |
| 04/23/2009 | US20090102440 Buck-Boost Switching Voltage Regulator |
| 04/23/2009 | US20090102439 Step-up DC/DC voltage converter with improved transient current capability |
| 04/23/2009 | US20090102438 Useful improvements in the art of 3-phase electronic tap changer commutation device |
| 04/23/2009 | US20090102436 Controller for the three-phase cascade multilevel converter used as shunt active filter in unbalanced operation with guaranteed capacitors voltages balance |
| 04/23/2009 | US20090102006 Electrostatic micro actuator, electrostatic microactuator apparatus and driving method of electrostatic micro actuator |
| 04/22/2009 | EP2051152A2 Linear regulator |
| 04/22/2009 | EP2003527A9 Digital controller |
| 04/22/2009 | CN201226497Y High efficiency power supply equipment |
| 04/22/2009 | CN201226496Y Power converter capable of implementing output end voltage constant |
| 04/22/2009 | CN201226493Y Primary feedback controller for implementing high precision constant-current output |
| 04/22/2009 | CN201226023Y Integrated tester for volt-ampere transformation ratio polar |
| 04/22/2009 | CN101416365A Apparatus and method for controlling electric power tide in transmission line |
| 04/22/2009 | CN101416135A Circuit and method for monitoring the point of maximum powerfor solar energy sources and solar generator incorporating said circuit |
| 04/22/2009 | CN101416134A Universal input device for a tap changer |
| 04/22/2009 | CN101414788A DC constant current power supply with low ripple implemented through mixing IGBT series and parallel connections |
| 04/22/2009 | CN101414752A Closed-cycle control system for reactive automatic optimization of network-configuring voltage |
| 04/22/2009 | CN101414195A High voltage stabilizing feedback type electricity-saving device |
| 04/22/2009 | CN101414194A High precision digital power supply control regulating apparatus |
| 04/22/2009 | CN101414193A Power supply automatic switchover circuit |
| 04/22/2009 | CN100481712C Power source for amplifier and method for controlling operational power fed to the amplifier |
| 04/22/2009 | CN100481670C A remotely controlled power supply device for the dynamic test of the car tyre |
| 04/22/2009 | CN100480943C 电压调节器 Voltage Regulator |
| 04/22/2009 | CN100480942C Current drive circuit reducing VDS dependency |
| 04/22/2009 | CN100480941C Active or operation controller for redundant power systems |
| 04/22/2009 | CN100480940C Synchronous buck converter improvements |
| 04/21/2009 | US7522437 Inverter circuit and control circuit thereof |
| 04/21/2009 | US7522432 Switching regulator and control circuit and method used therein |
| 04/21/2009 | US7521988 Voltage booster for semiconductor device and semiconductor memory device using same |
| 04/21/2009 | US7521914 Photovoltaic DC-to-AC power converter and control method |
| 04/21/2009 | US7521913 Active transient response circuits, system and method for digital multiphase pulse width modulated regulators |
| 04/21/2009 | US7521912 Power supply apparatus |
| 04/21/2009 | US7521911 Switching power supply capable of always switching a switching element at an optimal timing |
| 04/21/2009 | US7521910 Method and device for measuring current in a switched current path of a circuit |
| 04/21/2009 | US7521909 Linear regulator and method therefor |
| 04/21/2009 | US7521908 Method and apparatus for reducing audio noise in a switching regulator |
| 04/21/2009 | US7521907 Controller for a power converter and method of operating the same |
| 04/21/2009 | US7521877 Dimmer circuit for a discharge lighting apparatus |
| 04/21/2009 | US7520046 Method and article of manufacturing for designing a transformer |
| 04/16/2009 | WO2009048951A2 Methods and apparatus for controlling respective load currents of multiple series-connected loads |
| 04/16/2009 | WO2009048563A2 Compressor having a power factor correction system and method |
| 04/16/2009 | WO2009047194A1 Device for determining and/or monitoring a process variable |
| 04/16/2009 | WO2009023284A3 Interconnection element with plated posts formed on mandrel |
| 04/16/2009 | WO2009023283A3 Interconnection element with posts formed by plating |
| 04/16/2009 | WO2008062419A3 A device that enables plc based smart dimmers to function with no new wires |
| 04/16/2009 | WO2007022350A3 Reference buffer with improved drift |
| 04/16/2009 | WO2006128186A3 Solid state led bridge rectifier light engine |
| 04/16/2009 | WO2006116710A3 System and method for driving a power field-effect transistor (fet) |
| 04/16/2009 | WO2006074302A3 Power converters with limited operation to conserve power and with adjustments that overcome ringing |
| 04/16/2009 | US20090096513 Multiple circuit blocks with interblock control and power coservation |
| 04/16/2009 | US20090096512 Standby modes for integrated circuit devices |
| 04/16/2009 | US20090096511 Method and apparatus for high performance switch mode voltage regulators |
| 04/16/2009 | US20090096510 Reference voltage generating circuit for use of integrated circuit |
| 04/16/2009 | US20090096509 Bandgap Reference Circuits for Providing Accurate Sub-1V Voltages |
| 04/16/2009 | US20090096508 Semiconductor integrated circuit |
| 04/16/2009 | US20090096505 Systems, circuits and methods for reducing thermal damage and extending the detection range of an inspection system |
| 04/16/2009 | US20090096436 Dc-dc converter |
| 04/16/2009 | US20090096435 Layout schemes and apparatus for high performance dc-dc output stage |