Patents for H02M 1 - Details of apparatus for conversion (33,954)
05/2004
05/27/2004WO2004045055A1 Filter
05/27/2004WO2004045054A1 Filter device
05/27/2004WO2004045052A2 Controller for dc to dc converter
05/27/2004WO2004045051A2 Controller for dc to dc converter
05/27/2004WO2004045043A1 Filter
05/27/2004WO2004006037A3 Output regulator
05/27/2004WO2003081757B1 Apparatus and method for filtering voltage for an electrostatic precipitator
05/27/2004US20040100807 Dual input AC and DC power supply having a programmable DC output utilizing single-loop optical feedback
05/27/2004US20040100806 Method and apparatus for dissipative clamping of an electrical circuit
05/27/2004US20040100750 Interface circuit with power converter with interface circuit and electric vehicle with power converter
05/27/2004US20040100239 Circuit configuration for voltage stabilization
05/27/2004US20040100237 Device for the correction of the power factor in power supply units with forced switching operating in transition mode
05/27/2004US20040100232 Active power factor correction
05/27/2004DE19920505B4 Umrichter mit Temperatursymmetrierung Inverter with Temperatursymmetrierung
05/26/2004EP1422824A1 Interface circuit, power converter with interface circuit and electric vehicle with power converter
05/26/2004EP1422818A1 Frequency converter
05/26/2004EP1422813A2 Inverter control method and apparatus
05/26/2004EP1422803A1 Electrical distribution system and method for a vehicle with two networks having different voltage levels
05/26/2004EP1198876B1 System for controlling the delivery of power to dc computer components
05/26/2004EP0895669B1 Low-cost, high-voltage, flyback power supply
05/26/2004CN2618364Y Rapid radiative silicon rectifier bridge
05/26/2004CN2618363Y Streamer desulfurization and denitration power supply
05/26/2004CN2618362Y Power controller of power supply
05/26/2004CN2618361Y Built-in inputting and outputting terminals of frequency converter
05/25/2004US6741482 Power conversion device
05/25/2004US6741436 Microprocessor-controlled DC to DC converter with fault protection
05/21/2004WO2004042908A1 Uninterrupted power supply with power-factor correcting bypass mode
05/21/2004WO2004042905A1 Power converter
05/21/2004WO2004042903A1 A quasi-active power factor correction circuit for switching power supply
05/21/2004WO2004042793A2 One cycle control pfc boost converter ic with inrush current limiting, fan motor speed control
05/21/2004CA2504440A1 Uninterrupted power supply with power-factor correcting bypass mode
05/20/2004US20040095787 Protection circuit and method for floating power transfer device
05/20/2004US20040095786 Startup apparatus and method for power converters
05/20/2004US20040095785 Method and apparatus for providing input emi filtering in power supplies
05/20/2004US20040095784 Reduced capacitance AC/DC/AC power converter
05/20/2004US20040095694 Fault condition protection
05/20/2004US20040095120 Power converter circuitry and method
05/20/2004US20040095116 Power converter circuitry and method
05/20/2004US20040095115 Power converter circuitry and method
05/20/2004US20040095112 Power converter circuitry and method
05/20/2004US20040095101 Device for the correction of the power factor in power supply units with forced switching operating in transition mode
05/19/2004EP1420509A1 EMI filter for power supply
05/19/2004EP1420262A1 Method and system for detecting at least one failure of at least one switch
05/19/2004DE10252653A1 Controlling flow of power from supply network to AC device, e.g. for controlling fan, pump etc. by connecting operating voltage of microcontroller to neutral conductor of supply network
05/19/2004DE10250731A1 Method for monitoring junction temperatures of power semiconductors in multiphase inverters or rectifiers e.g. for road vehicles, involves using phase current of at least one selected bridge branch
05/19/2004CN1497829A Power supply capable of protecting circuit of electric apparatus
05/18/2004US6738277 Method and apparatus for balancing active capacitor leakage current
05/18/2004US6738268 Method and apparatus for providing power signals to operating circuitry mounted on circuit boards
05/18/2004US6737845 Current inrush limiting and bleed resistor current inhibiting in a switching power converter
05/18/2004US6737842 Method and circuits for reducing dead time and reverse recovery loss in buck regulators
05/18/2004US6735968 Refrigerating apparatus and an inverter device used therein
05/13/2004WO2004040744A1 Audio system with inactive smps during tuner search
05/13/2004WO2002041462A9 Inverter dc link volts 'tooth' modulation scheme
05/13/2004US20040090804 Controller for DC to DC converter
05/13/2004US20040090803 AC power line filter
05/13/2004US20040090260 Control of a thyristor of a rectifying bridge
05/13/2004US20040090218 Self-powered over-voltage protection circuit
05/12/2004CN2615948Y Thermal connecting & disconnecting secondary power supply for electric system automation equipment
05/12/2004CN1496600A Uninterruptible power supply
05/12/2004CN1496001A Duty ratio detection equipment whose return time is short
05/12/2004CN1495991A 高压供电设备 High voltage power supply equipment
05/12/2004CN1495990A 电功率转换器 Electrical power converter
05/12/2004CN1149732C Electronic ballasts with current and voltage feedback paths
05/12/2004CN1149725C Leakage current reduction circuit and power supply using the same circuit
05/12/2004CN1149461C Power saving circuit of power factor adjusting type
05/11/2004US6735098 Inrush current limiting circuit, power source device and power conversion device
05/11/2004US6735097 Method and apparatus of using leakage inductance as a boost inductor
05/11/2004US6735095 Switched-mode power supply with a function for detecting a broken feedback loop
05/11/2004US6734706 Circuit for driving a power device
05/11/2004CA2299219C Series compensator
05/06/2004WO2004039130A1 High-pressure discharge lamp operation device and illumination appliance having the same
05/06/2004WO2004038903A1 Stepping inductor for fast transient response of switching converter
05/06/2004WO2004038900A2 Ac-dc power converter having high input power factor and low harmonic distortion
05/06/2004WO2002011267A3 Dc to dc converter and power management system
05/06/2004US20040085793 Programmable power converter
05/06/2004US20040085790 Autobias driving a high frequency power system
05/06/2004US20040085788 Quasi active power factor correction circuit for switching power supply
05/06/2004US20040085785 Power supply apparatus and methods with power-factor correcting bypass mode
05/06/2004US20040085703 Multi-pulse HVDC system using auxiliary circuit
05/06/2004US20040085694 Universal multiple device power adapter and carry case
05/06/2004US20040085086 Predictive control boost current method and apparatus
05/06/2004US20040085050 Power converter module with an active snubber circuit
05/06/2004US20040085049 Ac voltage regulator apparatus and method
05/06/2004US20040084967 Combined ac-dc to dc converter
05/06/2004EP1416621A2 Latching shutdown and delayed re-start of DC power supply in broadband network
05/06/2004EP1416620A1 Driver circuit for two unidirectional current switches
05/06/2004EP1415388A2 Odd harmonics reduction of phase angle controlled loads
05/06/2004EP1415387A1 Method and apparatus for controlling synchronous rectifiers of a power converter
05/05/2004CN1494765A Filter system and method for filtering analog signal
05/05/2004CN1148865C Constant ractive current compensation method for full-bridge phase-shifting resonance soft switch
05/05/2004CN1148863C Harmonic suppression equipment for air conditioner and its suppression method
05/05/2004CN1148860C Switching power supply
05/05/2004CN1148622C Method and apparatus for electronic power control
05/04/2004US6731524 Parallel connected DC regulators with power factor corrected rectifier inputs
05/04/2004US6731486 Output-powered over-voltage protection circuit
04/2004
04/29/2004WO2004036726A1 Dc converter
04/29/2004WO2004036401A2 Bus controlled power switch
04/29/2004WO2003100968A3 Active common mode emi filter, including series cascaded filter with reduced power dissipation and transistor voltage rating
04/29/2004WO2003067745A8 Static electric power converter for modulating electric power exchanged between at least a voltage source and a current source
04/29/2004WO2003009690A3 Oscillating circuit, converter with such oscillating circuit, and preconditioner with such converter