| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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| 06/04/2008 | CN101192797A Switching power supply circuit |
| 06/04/2008 | CN101192796A Voltage ascending power circuit |
| 06/04/2008 | CN101192795A Jitter smoothing filter and jitter smoothing method for driving charge pump |
| 06/04/2008 | CN101192794A Charge pump circuit |
| 06/04/2008 | CN101192793A Semiconductor device voltage control apparatus |
| 06/04/2008 | CN101192792A No loss current buffer circuit and its converter circuit |
| 06/04/2008 | CN100392973C AC/DC converter and power supply system using the same |
| 06/04/2008 | CN100392972C Switch-mode power supply with over-current protection |
| 06/04/2008 | CN100392971C Voltage limiter |
| 06/04/2008 | CN100392970C Zero-bias working passive signal isolator |
| 06/04/2008 | CN100392969C Boost installation |
| 06/04/2008 | CN100392968C A high power factor DC power supply |
| 06/04/2008 | CN100392967C Control circuit for switching power supply device and switching power supply device used therewith |
| 06/04/2008 | CN100392966C Choke converter |
| 06/04/2008 | CN100392965C Power device with improved output voltage responsiveness |
| 06/04/2008 | CN100392964C Power supply device, power supply method and electronic equipment |
| 06/04/2008 | CN100392963C Low voltage largecurrent modle power source |
| 06/04/2008 | CN100392962C Circuit arrangement with power factor correction, and corresponding appliance |
| 06/04/2008 | CN100392763C Boosting circuit with boosted voltage limited |
| 06/04/2008 | CN100392552C Duty ratio estimator |
| 06/04/2008 | CN100392551C Output regulator |
| 06/04/2008 | CN100392546C Single chip ballast control with power factor correction |
| 06/04/2008 | CN100392545C Electronic dimmable ballast for high intensity discharge lamp |
| 06/04/2008 | CN100392482C Driving voltage control device, display device and driving voltage control method |
| 06/03/2008 | USRE40352 Switch mode power supply with reduced switching losses |
| 06/03/2008 | US7382635 Power supply apparatus, method of controlling the apparatus, and electronic device using the apparatus |
| 06/03/2008 | US7382634 Voltage multiplier with charge recovery |
| 06/03/2008 | US7382633 DC converter |
| 06/03/2008 | US7382176 Charge pump circuit |
| 06/03/2008 | US7382115 Apparatus for converting DC power and method of the same |
| 06/03/2008 | US7382065 Circuit for controlling inductive loads, in particular of electro actuators, at high efficiency |
| 06/03/2008 | US7382062 Wide voltage range stabilized switching power supply for valve actuators |
| 06/03/2008 | CA2398110C Device for increasing power of extremely low dc voltage |
| 05/29/2008 | WO2008062856A1 Controller for power supply circuit |
| 05/29/2008 | WO2008062706A1 Voltage output circuit, integrated circuit and electronic device |
| 05/29/2008 | WO2008042230A3 Capacitive load driving device |
| 05/29/2008 | US20080123372 Control circuit with adaptive minimum on time for power converters |
| 05/29/2008 | US20080122812 Direct current to direct current converting circuit, display apparatus having the same and method of driving the direct current to direct current converting circuit |
| 05/29/2008 | US20080122422 Parallel Current Mode Control Using a Direct Duty Cycle Algorithm with Low Computational Requirements to Perform Power Factor Correction |
| 05/29/2008 | US20080122387 Lamp state determining circuit and controller thereof |
| 05/29/2008 | US20080122291 Switching Power Supply Control Circuit, Switching Power Supply Device and Electronic Apparatus Employing the Same |
| 05/29/2008 | DE4432776B4 Schaltnetzteil Switching power supply |
| 05/29/2008 | DE19882882B4 Verfahren und Schaltung für die Detektion eines Zustandes eines primären Schalters in isolierten Gleichspannungswandlern Method and circuit for the detection of a state of a primary switch in isolated DC-DC converters |
| 05/29/2008 | DE102006050581B3 Direct current voltage converter, has measuring transistor e.g. self-conducting FET, with control circuit to control supply transistor, and resistor forming voltage divider that delivers gate voltage of measuring transistor |
| 05/29/2008 | DE102006009956B4 Auf-/Abwärts-DC/DC-Wandler Up / down DC / DC converter |
| 05/29/2008 | DE10158794B4 Induktiver kontaktloser Leistungsübertrager Inductive contactless power transformer |
| 05/28/2008 | EP1926200A1 Compensation for parameter variations in a feedback circuit |
| 05/28/2008 | EP1926199A1 Buck converter with inductor pre-energizing |
| 05/28/2008 | EP1925072A1 Charge pump circuit for rfid integrated circuits |
| 05/28/2008 | EP1044426B1 Data processing device and method for the voltage supply of same |
| 05/28/2008 | CN201066822Y Power supply circuit |
| 05/28/2008 | CN201066821Y Boost circuit |
| 05/28/2008 | CN101189914A Induction heating or melting with multiple frequencies |
| 05/28/2008 | CN101189786A Power and information signal transfer using micro-transformers |
| 05/28/2008 | CN101188894A Light source drive |
| 05/28/2008 | CN101188384A Synchronization rectification and soft switch control circuit for power converter |
| 05/28/2008 | CN101188383A Power circuit |
| 05/28/2008 | CN101188382A Power supply controller and method therefor |
| 05/28/2008 | CN101188381A DC-DC converter |
| 05/28/2008 | CN101188380A Circuits and methods for controlling a converter |
| 05/28/2008 | CN101188363A Capacitance charging module |
| 05/28/2008 | CN100391092C Circuit arrangement for generating switching signal for current controlled switched mode power supply |
| 05/28/2008 | CN100391091C Power supply circuit and electronic device |
| 05/28/2008 | CN100391090C Circuit for controlling power supply voltage output range |
| 05/28/2008 | CN100391077C Electric power supply device |
| 05/28/2008 | CN100390853C Efficient liquid crystal display drive voltage generating circuit and its method |
| 05/27/2008 | US7379313 Voltage conversion device |
| 05/27/2008 | US7379312 High-voltage device having a measuring resistor |
| 05/27/2008 | US7379309 High-frequency DC-DC converter control |
| 05/27/2008 | US7378929 Method and apparatus for substantially reducing electrical displacement current flow between input and output circuits coupled to input and output windings of an energy transfer element |
| 05/27/2008 | US7378825 DC/DC converter |
| 05/27/2008 | US7377805 Universal power supply apparatus |
| 05/22/2008 | WO2008059979A1 Electric power feeding system |
| 05/22/2008 | WO2007146292A3 Portable combination utility and power tool unit |
| 05/22/2008 | US20080119142 Spread spectrum isolator |
| 05/22/2008 | US20080117656 Primary side sampled feedback control in power converters |
| 05/22/2008 | US20080117655 Spike converter |
| 05/22/2008 | US20080117654 Multi-output switching power supply having voltage limiting circuit |
| 05/22/2008 | US20080117653 Semiconductor Device, Integrated Circuit Including the Semiconductor Device, Control IC for Switching Power Supply and the Switching Power Supply |
| 05/22/2008 | US20080116960 Charge pump-type dc/dc converter |
| 05/21/2008 | EP1922802A1 Peak charging current modulation for burst mode conversion |
| 05/21/2008 | DE102006049715A1 Motor drive's power supply unit for use in area of e.g. living space, has switching power supply connected with supply voltage input with contacts of plug of wall power supply and with output voltage outputs by cable with motor drive |
| 05/21/2008 | CN201063546Y Energy-saving device of electronic motor equipment |
| 05/21/2008 | CN201063545Y Single-phase, three-phase voltage dual-purpose high-frequency inversion electric welder |
| 05/21/2008 | CN201063541Y High-frequency highly effective boosting DC/DC converter |
| 05/21/2008 | CN201063540Y Positive-inverse excitation switch converter circuit |
| 05/21/2008 | CN201063539Y LLC series resonance converter protection circuit |
| 05/21/2008 | CN201063538Y AC/DC universal type power supply changeover module |
| 05/21/2008 | CN201063537Y Power supply dedicated for DC-DC locomotive monitoring |
| 05/21/2008 | CN201063535Y Single-stage power factor emendation convertor |
| 05/21/2008 | CN201063531Y Power supply converting circuit and pulse width modulation controller |
| 05/21/2008 | CN201063530Y Duplex power supply device for high voltage frequency converter control power supply |
| 05/21/2008 | CN201063524Y Split type DC voltage-controlled power source module |
| 05/21/2008 | CN201063454Y Non-switch tube type pulse charger |
| 05/21/2008 | CN201063453Y Charger capable of improving service lifetime of accumulator |
| 05/21/2008 | CN101185232A Multiphase transformer for a multiphase dc-dc converter |
| 05/21/2008 | CN101185139A Voltage regulator with bypass mode |
| 05/21/2008 | CN101183831A DC-DC converter, liquid crystal display device, aging test apparatus of liquid crystal display device, and method thereof |
| 05/21/2008 | CN101183830A Method and apparatus for a control circuit with multiple operating models |
| 05/21/2008 | CN101183829A Method and apparatus to reduce audio frequencies in a switching power supply |