Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
09/2005
09/22/2005US20050206366 Bias technique for electric utility meter
09/22/2005US20050206365 Reducing power consumption of electrical meters
09/22/2005US20050206357 Cooled power switching device
09/22/2005US20050206273 Piezoelectric transformer drive circuit and cold cathode tube lighting apparatus
09/22/2005US20050205679 Rectifier circuit
09/22/2005US20050204761 Temperature detection device, temperature detection method, and computer-readable computer program product containing temperature detection program
09/22/2005US20050204760 Refrigerating apparatus and inverter device
09/22/2005DE202005011076U1 Circuit for transformer less galvanically separated signal adjuster has smoothing capacitor switching in or out according to the signal input voltage
09/22/2005DE10361458A1 Converter, in particular for producing active power for inductive heating, with device for producing switching signals determines switching time point of load circuit signal by deriving from period to next anticipated null crossing
09/22/2005DE102005009494A1 Tragbare Bildaufnahmevorrichtung und Versorgungsspannungs-Umschaltsteuerverfahren Portable imaging device and supply voltage switching control
09/22/2005DE102005006587A1 Frequenzweiterleitung für eine konstante Lichtabgabe in einem Hintergrundbeleuchtungsinverter Rate forwarding for a constant light output in a backlight inverter
09/22/2005DE102004009994A1 Überstrom- und Mittenpunktspannungserfassung Overcurrent and midpoint voltage detection
09/22/2005DE10051156B4 Verfahren und Umrichterschaltung zur mittelfrequenten transformatorischen Energieübertragung Method and medium-converter circuit for transformative power transmission
09/21/2005EP1576719A1 Power conversion apparatus
09/21/2005EP1576718A1 Inverter type motor drive unit
09/21/2005EP1472776B1 Power factor correction circuit
09/21/2005EP1410486B1 Power factor correction circuit with a coil
09/21/2005EP0992104B1 Low voltage illumination system
09/21/2005CN2728094Y An electronic transformer capable of automatic power limitation
09/21/2005CN2726727Y Alternating current/direct current superposing high-frequency pulse purification power supply
09/21/2005CN1672470A Driver for a gas discharge lamp
09/21/2005CN1672109A Single chip ballast control with power factor correction
09/21/2005CN1671266A Parallel lighting system for surface light source discharge lamps
09/21/2005CN1671035A A method of photovoltaic grid-connected inversion
09/21/2005CN1671034A Single-chip microcomputer constant current device for single-phase bridge type semi-control electroplating DC source
09/21/2005CN1671033A System for controlling the delivery of power to DC computer components
09/21/2005CN1670497A Temperature detection device, temperature detection method, and computer-readable computer program product containing temperature detection program
09/21/2005CN1220324C Switch power circuit
09/20/2005US6947300 Parallel DC-to-AC power inverter system with current sharing technique and method thereof
09/20/2005US6947298 Switching power source apparatus
09/20/2005US6947270 Building block for series connection in high power converter
09/20/2005CA2267522C Method and apparatus for switching circuit system including a saturable core device with multiple advantages
09/20/2005CA2134743C Ac/dc power supply
09/18/2005CA2796128A1 Reducing power consumption of electrical meters
09/18/2005CA2501271A1 Reducing power consumption of electrical meters
09/15/2005WO2005086336A1 Dc-ac converter, its controller ic, and electronic apparatus using the dc-ac converter
09/15/2005WO2005086335A1 Variable speed drive for multiple loads
09/15/2005WO2005086322A1 Rotary electric machine for vehicles
09/15/2005US20050201129 Control apparatus, dual chip inverter and single chip inverter of AC motors
09/15/2005US20050201127 Multi-mode uninterruptible power supplies and methods of operation thereof
09/15/2005US20050201124 Power factor correction circuits
09/15/2005US20050200302 Pulse width modulation circuit and illuminating device incorporating same
09/15/2005US20050200206 Portable power inverter with pass through device
09/15/2005DE102004007426A1 Elektrisches Antriebssystem Electric propulsion system
09/15/2005DE10131016A1 Circuit with multi pulse rectifier has active overvoltage protection device with zener diode and decoupling diodes
09/15/2005CA2557593A1 Variable speed drive for multiple loads
09/14/2005EP1575156A2 Synchronization of parallel-connected inverter units or frequency converters
09/14/2005EP1575152A2 Power factor correction circuits
09/14/2005EP1573893A2 Flexible inverter power module for motor drives
09/14/2005CN2726211Y Digital power controlling system
09/14/2005CN2726210Y Low power dissipation resonance type switch power device
09/14/2005CN2726198Y Universal cell phone charging power for vehicle
09/14/2005CN1669209A Motor drive control with a single current sensor using space vector technique
09/14/2005CN1669208A Inverter
09/14/2005CN1669207A DC/AC converter and its controller IC
09/14/2005CN1668160A Discharge lamp lighting device
09/14/2005CN1667952A Minisize micro-heat control circuit
09/14/2005CN1667941A Control apparatus, dual chip inverter and single chip inverter of AC motors
09/14/2005CN1667933A Portable power inverter with pass through device
09/13/2005US6944037 Method and voltage converter for converting DC input voltage to AC voltage in a system frequency range
09/13/2005US6943534 Multipurpose transforming device
09/13/2005US6943506 Inverter apparatus and liquid crystal display including inverter apparatus
09/13/2005US6943445 Semiconductor device having bridge-connected wiring structure
09/12/2005CA2495358A1 Power factor correction circuits
09/09/2005WO2005083879A1 Motor and drive system of motor
09/09/2005WO2005083872A1 Current overload and voltage detection in a central point
09/08/2005US20050197799 Temperature detection method of semiconductor device and power conversion apparatus
09/08/2005US20050195625 Portable photographing apparatus and power switching control method
09/08/2005US20050195624 Method and arrangement in connection with network inverter
09/08/2005US20050195623 Method and apparatus for output voltage regulation in primary controlled switched mode power supplies
09/08/2005US20050195003 Charge pump circuit using active feedback controlled current sources
09/08/2005US20050194925 Apparatus for controlling three-phase AC motor on two-phase modulation technique
09/08/2005US20050194918 Motor and motor drive system
09/07/2005EP1571752A2 Soft-switching half-bridge inverter power supply system
09/07/2005EP1571707A2 Semiconductor device temperature detection method and power conversion apparatus
09/07/2005EP1509995A4 Polyphase induction electrical rotating machine
09/07/2005CN2724291Y Intelligent inverse power source
09/07/2005CN1665118A Control method for three-phase four-arm converter
09/07/2005CN1665117A Inverter circuit and inverting method thereof
09/07/2005CN1665116A Biphase orthogonal vector control type magnetic stirrer inverter
09/07/2005CN1664522A Temperature detection method of semiconductor device and power conversion apparatus
09/07/2005CN1663728A Soft-switching half-bridge inverter power supply system
09/07/2005CN1218463C Electric power apparatus and power system
09/06/2005US6940735 Power converter system
09/06/2005US6940715 Modular power converter having fluid cooled support
09/06/2005US6940384 Packaging techniques for a high-density power converter
09/06/2005US6940380 Transformer/reactor
09/06/2005US6940188 Electric power converting device
09/01/2005WO2005081389A1 Multiple phase simultaneous switching preventing circuit, pwm inverter and its driving method
09/01/2005WO2005081387A1 Voltage conversion device
09/01/2005WO2005081385A1 Current direction determining circuit, and switching regulator having the same
09/01/2005WO2005081384A2 Apparatus and method for regulating a clock frequency of a power converter
09/01/2005US20050190583 Soft-switching half-bridge inverter power supply system
09/01/2005US20050190005 Method and apparatus for generating pulse-width modulated waveform
09/01/2005US20050189986 Atonal converter and inverter
09/01/2005US20050189889 Modular control system for an AC motor
09/01/2005US20050189888 Variable speed drive for multiple loads
09/01/2005US20050189566 Switching power-supply module
09/01/2005US20050188886 Non-lethal projectile systems
09/01/2005DE10393403T5 Energiespar-Effekt-Anzeigeeinheit in einem Inverter Energy-saving effect display unit in an inverter