Patents for H02M 1 - Details of apparatus for conversion (33,954)
06/2008
06/18/2008CN201075720Y Control circuit of controller for electric vehicle
06/18/2008CN201075671Y Electromagnetic furnace IGBT high voltage protective circuit with low cost
06/18/2008CN201075661Y Switch power source integrated with short-circuit protection and over low-voltage protection
06/18/2008CN101204120A Method for driving an inverter of a gas discharge supply circuit
06/18/2008CN101202515A Electric power convertion device
06/18/2008CN101202513A On-line separate AC/DC power supply with PFC circuit
06/18/2008CN101202511A Synchronous rectification circuit for resonance power converter
06/18/2008CN101202500A DC power supply switch and realizing method thereof
06/18/2008CN101202498A Non-rectifying bridge type PFC circuit
06/18/2008CN101202497A Three-phase rectifying flat wave circuit
06/18/2008CN101202496A Common-mode filtering device and speed variator comprising such a device
06/18/2008CN101202495A Power converter unit
06/18/2008CN101202494A Device and method for auto linear error compensating of electric voltage /frequency converter
06/18/2008CN101201692A Bus controlled power switch
06/18/2008CN100395949C Mould building method for multiple-phase PWM controller
06/17/2008US7388766 Harmonic control and regulation system for harmonic neutralized frequency changer
06/17/2008US7388422 Charge pump circuit for high side drive circuit and driver driving voltage circuit
06/17/2008US7388358 Method and apparatus for a pulse width modulated DC-DC converter
06/17/2008US7388357 Method and apparatus for reducing input supply ripple in a DC-DC switching converter
06/17/2008CA2403856C Dc power adapter system
06/17/2008CA2266941C Load-side filter arrangement for a converter circuit arrangement
06/12/2008WO2008069129A1 Drive circuit and semiconductor device using the same
06/12/2008WO2008067736A1 A power supply system, a power cable distribution device, a power system subrack and an integrative equipment
06/12/2008WO2007121944A3 Boost power factor correction circuit (boost pfc)
06/12/2008US20080137386 Portable power supply apparatus capable of receiving ac or dc input power
06/12/2008US20080136392 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power
06/12/2008US20080136353 Power supply circuit for LCD backlight and method thereof
06/12/2008DE4420182B4 Stromversorgungsvorrichtung A power supply apparatus
06/12/2008DE102006058867A1 Chirurgisches Schaltnetzteil und chirurgisches Gleichstromelektrowerkzeug Surgical switching power supply and surgical DC power tool
06/11/2008EP1929630A1 Close control of electric power converters
06/11/2008EP1929614A2 System and method of reducing harmonic effects on a power delivery system
06/11/2008CN201072438Y Multi-input channel modularized high-frequency isolation single phase electric energy feedback type electronic load
06/11/2008CN101197546A Power conversion apparatus and motor drive system
06/11/2008CN101197543A Controllable green electric power adopting novel regulation and transformation method
06/11/2008CN101197537A Semiconductor integrated circuit driving external fet and power supply incorporating the same
06/11/2008CN101197532A Refrigerating apparatus and an inverter device used therein
06/11/2008CN101197531A Capacity controlled numerical frequency modulation circuit
06/11/2008CN101197530A Suspending chopper box of magnetic suspension train
06/11/2008CN101197211A Metallized polyester film capacitor and its manufacturing method and usage
06/11/2008CN100394688C Power-supply regulation
06/11/2008CN100394685C Combined two-way power switch with diode clamping circuit and its application
06/11/2008CN100394684C Configuration and method for protecting converter means
06/11/2008CN100394347C Dimmer circuit with improved ripple control
06/11/2008CN100394344C Output power constant high-voltage high-power barrier
06/10/2008US7385438 Active filter for reduction of common mode current
06/10/2008US7385356 Energy saving startup circuit for power supply
06/10/2008US7385312 Method and apparatus for mode selection for high voltage integrated circuits
06/10/2008US7384203 Power conversion apparatus
06/05/2008WO2007127463A3 Startup for dc/dc converters
06/05/2008US20080130340 Power brick with passthrough
06/05/2008US20080130330 Current sensing in a power converter
06/05/2008US20080129262 Switching power supply source
06/05/2008US20080129260 Current sharing for multiphase power conversion
06/05/2008DE202008003375U1 Unterputznetzgerät mit USB-Steckverbindungsanschluss Concealed Power Supply with USB connector port
06/05/2008DE19537526B4 Elektrisch betriebenes Fahrzeug, insbesondere Triebfahrzeug An electrically operated vehicle, in particular train
06/05/2008DE102006056785A1 Control signal producing method for circuit-breaker, involves defining two duty cycles in control signal sections using signal transfer section, where one of duty cycles differ from another duty cycle
06/05/2008DE102006056255A1 Servo motor supply module for electrical system, has fastening units designed for arranging module at opening of cabinet such that outlet of connecting system is impinged with component of connecting system through opening
06/04/2008EP1928083A1 Excessive-temperature detection system of motor controller
06/04/2008EP1928076A2 Circuit controlling the firing angle of semiconductors
06/04/2008EP1927041A2 Inrush current limiter device and power factor correction circuit comprising the same
06/04/2008CN101192807A An intelligent controller for DC frequency conversion compressor and its control method
06/04/2008CN101192795A Jitter smoothing filter and jitter smoothing method for driving charge pump
06/04/2008CN101192792A No loss current buffer circuit and its converter circuit
06/04/2008CN101192791A EMC common mode filtering circuit
06/04/2008CN101192790A 1/2 current adjuster/modulator
06/04/2008CN101192789A Idle power reduction device of switch power and its method
06/04/2008CN101192788A Idle power-saving device of switch power and its power-saving method
06/04/2008CN101192747A No contact long life soft start energy-saving distribution box
06/04/2008CN100392972C Switch-mode power supply with over-current protection
06/04/2008CN100392971C Voltage limiter
06/04/2008CN100392968C A high power factor DC power supply
06/04/2008CN100392966C Choke converter
06/04/2008CN100392962C Circuit arrangement with power factor correction, and corresponding appliance
06/04/2008CN100392923C Adapter with rotation plug
06/04/2008CN100392552C Duty ratio estimator
06/04/2008CN100392551C Output regulator
05/2008
05/29/2008WO2008004177A3 Method for controlling a deceleration process of a dc motor and controller
05/29/2008US20080123382 Switching element drive circuit
05/29/2008US20080123380 Switching mode power supply and driving method thereof
05/29/2008US20080123379 Voltage Regulating Circuit
05/29/2008US20080123377 Circuit and method for predicting a valley timing for a voltage across a switching device
05/29/2008US20080122422 Parallel Current Mode Control Using a Direct Duty Cycle Algorithm with Low Computational Requirements to Perform Power Factor Correction
05/29/2008US20080122420 Programmable conduction mode control for switching circuits
05/29/2008DE102005009069B4 Steuerschaltung einer Leistungs-Halbleiter-Vorrichtung und steuernde integrierte Schaltung Control circuit of a power semiconductor device and controlling integrated circuit
05/28/2008EP1926212A1 Method for thermal protection of power switch element in a frequency converter
05/28/2008EP1926198A2 Driver circuit with BOT level shifter for transmitting an input signal and assigned method
05/28/2008EP1754304A4 Method for controlling low- voltage using waves ac and system for performing the same
05/28/2008CN201066820Y A novel high-capacity rectifying device
05/28/2008CN201066819Y Assembly structure for reversible case of cascaded frequency converter
05/28/2008CN101188386A PWM current rectifying system based on DSP and CPLD
05/28/2008CN101188379A Power inverter having liquid cooled capacitor and low inductance bus structure
05/28/2008CN101188378A A high price/performance ratio high-power IGBT module
05/28/2008CN101187364A Inverter-integrated electric compressor
05/27/2008US7379310 Over-voltage protection circuit for a switched mode power supply
05/27/2008US7379286 Quantum vacuum energy extraction
05/27/2008US7378943 Noise suppressing circuit
05/27/2008US7377805 Universal power supply apparatus
05/22/2008WO2008059471A1 A digital power controller
05/22/2008WO2008034271A3 Encapsulated electrical valve module
05/22/2008WO2007121945A3 Boost power factor correction circuit (boost pfc)