Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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10/27/2004 | CN1173457C Switch supply unit with active clamping circuit |
10/27/2004 | CN1173455C Alternatively parallel three-level converter excited by positive voltage |
10/26/2004 | US6809953 Potential generating circuit, potential generating device and semiconductor device using the same, and driving method thereof |
10/26/2004 | US6809943 Programmable power supply |
10/26/2004 | US6809941 Power system having a power factor correction circuit |
10/26/2004 | US6809939 Synchronous rectifying control circuit of flyback switching power supply |
10/26/2004 | US6809923 Power supply unit |
10/26/2004 | US6809678 Data processor controlled DC to DC converter system and method of operation |
10/26/2004 | US6809573 Circuit for generating high voltage |
10/26/2004 | US6809560 Load sensing circuit for a power MOSFET switch |
10/26/2004 | US6809503 Systems and methods for conserving energy in a switching circuit |
10/26/2004 | US6809498 Power supply apparatus and electronic equipment |
10/26/2004 | US6809387 Power switching device |
10/21/2004 | WO2004091069A1 Decoupling circuits |
10/21/2004 | WO2004091068A1 Decoupling circuits |
10/21/2004 | WO2004091052A2 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 |
10/21/2004 | WO2004047263A3 Power converter circuitry and method |
10/21/2004 | WO2003102708A3 Voltage regulator with dynamically boosted bias cuttent |
10/21/2004 | US20040210349 Method and apparatus for controlling a power supply |
10/21/2004 | US20040208667 Power supply control apparatus and electric device |
10/21/2004 | US20040208042 Power output stage for capacitive loads |
10/21/2004 | US20040208032 Microminiature power converter |
10/21/2004 | US20040208029 Method and apparatus for transmitting data |
10/21/2004 | US20040208028 Power system with zero voltage switching |
10/21/2004 | US20040208027 Power system with coupled inductor |
10/21/2004 | US20040208026 Pumping voltage generator |
10/21/2004 | US20040208025 Loosely coupled parallel resonant converter |
10/21/2004 | US20040208024 Switching type AC adapter circuit with a latch protection circuit |
10/21/2004 | US20040208023 Switched mode power supply responsive to current derived from voltage across energy transfer element input |
10/21/2004 | US20040208021 Switching power supply |
10/21/2004 | US20040207459 Charge pump bypass |
10/21/2004 | US20040207458 Voltage booster power supply circuit |
10/21/2004 | US20040207381 Method and apparatus providing final test and trimming for a power supply controller |
10/21/2004 | US20040207378 Enabling circuit for avoiding negative voltage transients |
10/21/2004 | US20040207377 Solenoid driving device |
10/21/2004 | US20040207376 Digital dynamic trace adjustment pulse width modulate controller |
10/21/2004 | US20040207375 Power supply apparatus |
10/21/2004 | US20040207373 Low-cost DC-DC voltage switching converter regulator device |
10/21/2004 | US20040207372 DC-DC converter control circuit and DC-DC converter |
10/21/2004 | US20040207371 Power system with phased controlled inrush limiter |
10/21/2004 | US20040207370 Booster circuit and method for controlling the same |
10/21/2004 | US20040207362 Mobile type power supply, connection device, and carried type electronic equipment |
10/21/2004 | US20040207349 Drive voltage generating apparatus and method for controlling the same |
10/21/2004 | DE4426258B4 Umrichter Inverter |
10/21/2004 | DE10314842A1 Stromerfassungsschaltung für einen DC/DC-Wandler Current detecting circuit for a DC / DC converter |
10/21/2004 | DE102004017514A1 Überstromschutzschaltung für geschaltete Stromversorgung The overcurrent protection circuit switched power |
10/20/2004 | EP1469584A2 Non-contact electrical power transmission system having function of making load voltage constant |
10/20/2004 | EP1469583A2 Switch mode power converter, charger device and portable electrical tool |
10/20/2004 | EP1469582A1 Booster circuit and method for controlling the same |
10/20/2004 | EP1469479A2 Programming voltage protection in non-volatine memory system |
10/20/2004 | EP1468485A1 Method and apparatus for maintaining a constant load current in a switch mode power supply |
10/20/2004 | EP1468484A2 Multicellular dc/dc voltage converter with protection switches |
10/20/2004 | CN2650393Y Isolated self-oscillation reverse exciting inverter |
10/20/2004 | CN2650385Y Soft-changing clamping device |
10/20/2004 | CN1539193A 同步整流器电路 Synchronous rectifier circuit |
10/20/2004 | CN1538806A Reliable board mounted power module |
10/20/2004 | CN1538608A Switch power-supply device |
10/20/2004 | CN1538606A Low voltage largecurrent modle power source |
10/20/2004 | CN1538453A Booster power circuit |
10/20/2004 | CN1172427C Circuit of switching power supply with secondary power supply |
10/19/2004 | US6807075 Start-up circuit for switched mode power supply |
10/19/2004 | US6807073 Switching type power converter circuit and method for use therein |
10/19/2004 | US6807072 Electric power conversion device with push-pull circuitry |
10/19/2004 | US6807071 Transformer isolated driver |
10/19/2004 | US6807070 Resonant converter with phase delay control |
10/19/2004 | US6807069 Direct current converter with integrated transformer windings and output voltage filtering coils on the same magnetic core |
10/19/2004 | US6806761 Integrated charge pump circuit with low power voltage regulation |
10/19/2004 | US6806760 Low-voltage booster circuits and methods of operation thereof |
10/19/2004 | US6806736 Circuit for a lossless capacitive pump |
10/19/2004 | US6806691 Regulator circuit for independent adjustment of pumps in multiple modes of operation |
10/19/2004 | US6806689 Multi-phase buck converter |
10/14/2004 | WO2004088829A1 Switching power supply apparatus |
10/14/2004 | WO2004088828A2 Phase-shifted resonant converter having reduced output ripple |
10/14/2004 | WO2004047268A3 Power converter circuitry and method |
10/14/2004 | US20040204173 Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system |
10/14/2004 | US20040201937 Overcurrent protection circuit for switching power supply |
10/14/2004 | US20040201281 Single-inductor multiple-output switching converters in PCCM with freewheel switching |
10/14/2004 | DE202004012817U1 Passive isolator circuit for DC signals transmission, uses input-side voltage monitoring circuit with reference voltage comparator and switching device for input overvoltages |
10/14/2004 | DE10312921A1 Schaltungsanordnung, Zusatzmodul und Solaranlagen-System Circuitry, additional module and solar system |
10/14/2004 | DE10303435A1 Method for energising semiconductor switch in switching converter, e.g. power MOSFET in bulk converter, with load path of switch in series to energy storage element in converter, providing output voltage from input voltage |
10/14/2004 | DE10051936B4 Spannungspumpe mit Einschaltsteuerung Voltage pump with Power Up |
10/13/2004 | EP1466399A1 Isolated converter with synchronized switching leg |
10/13/2004 | EP1466224A1 Electronic ballast with ignition and operation control |
10/13/2004 | EP1290537B1 Power sequencer control circuit |
10/13/2004 | EP0806074B1 Switching power supply with means for recovering leakage energy from the transformer |
10/13/2004 | CN2648694Y Convension exchange power source supply device with primary/secondary sync control |
10/13/2004 | CN1536750A Switch type AC additional circuit |
10/13/2004 | CN1536749A Recovery time from zero to high load in extra-light DC-DC converter |
10/13/2004 | CN1536748A Feedback bias control circuit of synchronous rectifier |
10/13/2004 | CN1171510C Ballast for discharge lamp |
10/13/2004 | CN1171373C Power supply |
10/13/2004 | CN1171130C Overload protection method for circuit device and readjusting circuit elements |
10/12/2004 | US6804125 Isolated drive circuitry used in switch-mode power converters |
10/12/2004 | US6804091 Switching regulator transient suppressor |
10/12/2004 | US6803807 Negative voltage output charge pump circuit |
10/12/2004 | US6803752 Polyphase PWM regulator with high efficiency at light loads |
10/12/2004 | US6803750 Multiphase synchronous buck converter with improved output current sharing |
10/12/2004 | US6803749 Power supply system and process including sub-switching element control |
10/12/2004 | US6803730 Single stage PFC + ballast control circuit/general purpose power converter |
10/12/2004 | US6803677 System for providing multiple power conversion operations |