Patents for H02M 1 - Details of apparatus for conversion (33,954)
10/2002
10/10/2002WO2002080347A2 Enhanced conduction angle power factor correction topology
10/10/2002WO2002080342A1 Control means for a transistor switch circuit
10/10/2002WO2002079892A1 Power factor correction circuit arrangement
10/10/2002WO2002079891A1 Current limiting technique for a voltage converter
10/10/2002WO2002041481A3 Dc-dc converter with reduced input current ripples
10/10/2002WO2002041479A3 Voltage clamping system and method for a dc/dc power converter
10/10/2002WO2001078091A9 Miniaturized ac/dc power supply and battery charger
10/10/2002US20020145897 Controlled rectifier equipment with sinusoidal waveform supply current
10/10/2002US20020145896 Method and apparatus for transmitting power
10/10/2002US20020145890 Controlling operation of an ac/dc converter
10/10/2002US20020145889 Method for pulse width modulation frequency correlation
10/10/2002US20020145887 Inverter device
10/10/2002US20020145407 Zero voltage, zero current switching power factor correction converter with low conduction loss and low switching loss
10/10/2002US20020145338 Uninterruptable power supply with energy control
10/10/2002DE10149390C1 Controller has current detector for determining current in load circuit before measurement pause that detects length of free-running period in measurement pause, computes current from this
10/09/2002EP1248368A2 Switching device for a HF-GTO
10/09/2002EP1248344A2 Bipolar reactance circuit for nonlinear loads
10/09/2002EP1247329A2 Method for controlling bi-directional switches in matrix converters
10/09/2002CN1373553A High-reliability control circuit for full-bridge phase-shift zero-voltage zero-current switching power supply
10/09/2002CN1092418C Single-switch triphase power factor correcting method and circuit
10/08/2002US6462976 Conversion of electrical energy from one form to another, and its management through multichip module structures
10/08/2002US6462974 Space vector modulation-based control method and apparatus for three-phase pulse width modulated AC voltage regulators
10/08/2002US6462971 Method and apparatus providing a multi-function terminal for a power supply controller
10/08/2002US6462970 SMPS protection circuit in electronic appliance
10/08/2002US6462969 Method and apparatus for controlling power supply units in a power supply based on the number of operating power supply units
10/08/2002US6462966 Power supply circuit and method
10/08/2002US6462964 High frequency power generator and related methods
10/08/2002US6462963 Zero voltage switching power conversion circuits
10/08/2002US6462962 Lossless switching DC-to-DC converter
10/03/2002WO2002078161A1 Switch-mode power supply with autonomous primary inverter
10/03/2002WO2002078158A2 Active filter for power distribution system with selectable harmonic elimination
10/03/2002WO2002077738A1 Single-stage pfc + ballast control circuit/general purpose power converter
10/03/2002US20020141214 Synchronous rectifiers
10/03/2002US20020141211 Adapter circuit for selectively doubling input voltage depending upon connector type
10/03/2002US20020141206 Isolated drive circuitry used in switch-mode power converters
10/03/2002US20020141126 Semiconductor device
10/03/2002US20020140408 Technique for limiting current through a reactive element in a voltage converter
10/03/2002US20020140407 Power factor correction circuit arrangement
10/03/2002US20020140294 Voltage fluctuation compensating apparatus
10/02/2002DE10111913A1 Schaltender Spannungsumformer A switching Power
10/02/2002DE10111696A1 Regulating power factor correction circuit for rectifier involves subtracting deviation of bridge rectifier output and reference currents from reference duty cycle to give control duty cycle
10/02/2002CN2514545Y Interchangeable power supply device
10/01/2002US6459604 Power supply for both AC and DC
10/01/2002US6459603 Adapter circuit for selectively doubling input voltage depending upon connector type
10/01/2002US6459597 Electric power conversion apparatus with noise reduction device
10/01/2002US6459174 Protection circuit for reducing noise received at a circuit operating on a voltage reference supply
10/01/2002US6459172 Power distribution with redundant circuitry for reliability
09/2002
09/26/2002WO2002075910A2 Vacuum arc method, system, and apparatus
09/26/2002WO2002075909A1 Multiple power supply, and method and apparatus for overcurrent protection of multiple power supply
09/26/2002WO2002075779A2 Power supply with a reduced harmonic load on the mains system, and a corresponding appliance
09/26/2002WO2002075471A1 Power factor correction circuit
09/26/2002US20020136040 Switching voltage converter
09/26/2002US20020136039 Power supply apparatus
09/26/2002US20020136036 Active filter for power distribution system with selectable harmonic elimination
09/26/2002US20020136033 Switching power supply
09/26/2002US20020136029 Low voltage, high current dc computer power system
09/26/2002US20020135341 Circuitry for improving the efficiency of a switching regulator by reducing reverse recovery current
09/26/2002US20020135328 Electric power conversion apparatus
09/25/2002EP1244203A2 Power converter circuit for generators with dynamically varying outputpower
09/25/2002CN2513286Y Adjustable filter for converter output
09/25/2002CN1371544A High frequency switch-mode dc powered computer system
09/25/2002CN1371159A Grid driver for thyratron
09/25/2002CN1371151A Power supply specially for household cinema
09/24/2002US6456512 Method for pulse width modulation frequency correlation
09/24/2002US6456511 Start-up circuit for flyback converter having secondary pulse width modulation
09/24/2002US6456510 Unique method of reducing losses in circuits using V2 PWM control
09/24/2002US6456508 Drive apparatus for vibrating-type compressor
09/24/2002US6456475 Off-line converter with digital control
09/19/2002WO2002073782A1 Device for voltage conversion
09/19/2002WO2002041480A3 Switchable power converter for multiple level input line power factor correction
09/19/2002WO2001003276A3 Diode recovery current suppression circuits
09/19/2002US20020131788 Power supply control apparatus and image formation apparatus
09/19/2002US20020131555 Apparatus for producing vacuum arc discharges
09/19/2002US20020131286 Switching voltage converter
09/19/2002US20020131284 Auxiliary output voltage control implemented with a bi-directionally magnetizing Magnetic amplifier
09/19/2002US20020131280 Method and apparatus for fault condition protection of a switched mode power supply
09/19/2002US20020131276 Power conversion apparatus
09/19/2002US20020131224 Switching power supply apparatus
09/19/2002US20020130649 Frequency converter system having a damper device with a general complex impedance for damping undesirable resonant oscillations in a tuned circuit formed by at least one input-side inductance and parasitic distributed capacitances
09/19/2002US20020130648 Power factor corrected UPS with improved connection of battery to neutral
09/19/2002US20020130645 Overvoltage protection device for buck converter
09/19/2002US20020130640 Power factor correction circuit
09/19/2002DE10112982A1 Operating method for 3-phase rectifier with power factor correction uses 3 different switching patterns in which different phases are switched in
09/19/2002DE10112141A1 Vorrichtung zur Spannungswandlung Device for voltage conversion
09/19/2002DE10110615A1 Verfahren zur Erzeugung von Ansteuerimpulsen für Leistungshalbleiter A method of generating control pulses for the power semiconductor
09/18/2002EP1241778A2 Method and apparatus for fault condition protection of switched mode power supply
09/18/2002EP1241777A2 Switching voltageconverter
09/18/2002EP1241775A2 Switching voltageconverter
09/18/2002EP1240707A2 Variable frequency electric signal generator, automatic control and low cost computing means
09/18/2002CN1369953A Switching mains
09/17/2002US6452819 Inverter without harmonics
09/17/2002US6452817 Switching power supply circuit
09/17/2002US6452815 Accelerated commutation for passive clamp isolated boost converters
09/17/2002US6452814 Zero voltage switching cells for power converters
09/17/2002US6452369 Output Controlled Buck Converter
09/17/2002US6451463 Electro-chemical power generation systems employing arrays of electronically-controllable discharging and/or recharging cells within a unity support structure
09/12/2002WO2002071807A1 Induction heating system
09/12/2002WO2002071590A1 Power supply device
09/12/2002WO2002071588A1 Method and apparatus for providing an initial bias and enable signal for a power converter
09/12/2002WO2002071587A2 Start-up circuit for switched mode power supply