Patents for H02M 1 - Details of apparatus for conversion (33,954)
01/2005
01/13/2005DE10327956A1 Circuit arrangement for voltage supply to load in normal and standby operation, has second converter unit coupled to input terminals to provide output voltage during standby
01/13/2005DE102004006753A1 Leistungshalbleitervorrichtung Power semiconductor device
01/12/2005EP1496605A1 Frequency converter and its control method
01/12/2005EP1496604A2 DC-DC converter and device for operation of a high pressure discharge lamp using said converter
01/12/2005EP1495532A2 Soft switching converter using current shaping
01/12/2005CN2671221Y Air cooling powerful high-frequency switchable power supply
01/12/2005CN2671220Y Air cooling high-power high frequency switch power supply
01/12/2005CN2671219Y Air cooling high-frequency switch power supply
01/12/2005CN1565072A Motor control circuit and associated full bridge switching arrangement
01/12/2005CN1564449A Smallest voltage active clamped single-phase A.C-D.C power factor correction transformer
01/12/2005CN1564448A Composite active clamped single-phase A.C-D.C power factor correction transformer
01/12/2005CN1564447A Composite active clamped 3-phase A.C-D.C power factor correction transformer
01/12/2005CN1564439A Setting time sequence for controlled voltage and main loop power supplying of transformer final stage
01/12/2005CN1564438A Switcing linear composite free waveform power transformer
01/11/2005US6842069 Active common mode EMI filters
01/11/2005US6842068 Power management method and structure
01/11/2005US6842064 Overcurrent protection and masking circuitry for protection against an overcurrent condition
01/11/2005US6841980 Apparatus for controlling voltage sequencing for a power supply having multiple switching regulators
01/11/2005US6841979 Power distribution with digital current control
01/11/2005US6841977 Soft-start with back bias conditions for PWM buck converter with synchronous rectifier
01/11/2005US6841898 Automatic power supply selector for a ACPI-compliant PCI devices
01/11/2005US6841896 Dual supply voltages converter and method
01/06/2005WO2005002021A1 Supply-line filter
01/06/2005WO2003100968A8 Active common mode emi filter, including series cascaded filter with reduced power dissipation and transistor voltage rating
01/06/2005WO2003034391A9 Method and system for adjusting the voltage of a precharge circuit
01/06/2005WO2003034385A9 System and method for illumination timing compensation in response to row resistance
01/06/2005US20050003778 Electrical filters
01/06/2005US20050002212 Electric power converting device
01/06/2005US20050002211 Power factor correction method and apparatus and power supply using the same
01/06/2005US20050002162 Modular power converter having fluid cooled support
01/06/2005US20050001659 Gate driving circuit
01/06/2005US20050001601 Circuit for controlling the minimum operating voltage of switching power supply
01/06/2005US20050001599 Power supply system and method of controlling the same
01/05/2005EP1494334A2 Battery charging device
01/05/2005DE19801848B4 Spannungswandler mit einer selbstschwingenden Brückenschaltung Voltage converter comprising a self-oscillating bridge circuit
01/05/2005DE10327407A1 Elektrische Schaltung für einen spannungseinprägenden Umrichter Electrical circuit for a voltage-converter
01/05/2005DE10325519A1 Drive circuit for switch in switched mode power supply has first component group supplied with operating voltage via first input terminal and second component group supplied via supply connection
01/05/2005DE10158790B4 Halbleiterschutzschaltung Semiconductor circuit
01/05/2005CN1561653A Self-oscillating bridge circuit comprising a start circuit
01/05/2005CN1561576A Gate driver apparatus having an energy recovering circuit
01/05/2005CN1561570A Oscillating circuit, converter with such oscillating circuit, and preconditioner with such converter
01/05/2005CN1183654C Power supply device and air conditioner using said power supply
01/05/2005CN1183653C Converter device
01/04/2005US6839251 Apparatus and method for filtering voltage for an electrostatic precipitator
01/04/2005US6839250 Active EMI filter with feed forward cancellation
01/04/2005US6839247 PFC-PWM controller having a power saving means
01/04/2005US6839245 Switching power supply circuit
01/04/2005US6839213 Power converter of electric car or hybrid car
01/04/2005US6838914 Semiconductor device
12/2004
12/30/2004US20040264226 Motor control circuit and associated full bridge switching arrangement
12/30/2004US20040264224 Structure and method for an isolated boost converter
12/30/2004US20040264220 Emi filter circuit
12/30/2004US20040264215 Power conversion circuit with clamp and soft start
12/30/2004US20040263219 Drive circuit and drive method
12/30/2004US20040263140 Device for the correction of the power factor in forced switching power supplies
12/30/2004US20040263138 Watt Power Device
12/30/2004DE4029221B4 Elektronisches Schaltnetzteil An electronic switching power supply
12/29/2004WO2004114509A1 Dead time control in a switching circuit
12/29/2004WO2004114508A1 Ac switch
12/29/2004WO2004073148A3 Ac voltage regulator apparatus and method
12/29/2004EP1490957A2 Line frequency switching regulator
12/29/2004CN2667791Y Harmonic current suppressor
12/29/2004CN2667790Y Simple harmonic current suppressor
12/29/2004CN1181945C Power supply used in the welding, cutting and heating device
12/28/2004US6836161 Semiconductor switch driving circuit
12/28/2004US6836101 Tip having active circuitry
12/23/2004WO2004112231A2 Rectifier/power converter for an ac power source having a connection for a back-up power source
12/23/2004WO2004112225A2 High efficiency off-line linear power supply
12/23/2004WO2004112170A2 Method and system for configuring power electronics in an electrochemical cell system
12/23/2004WO2004045051A3 Controller for dc to dc converter
12/23/2004US20040257845 Series power switch bridge having the ability of automatic voltage-sharing
12/23/2004US20040257841 Device for removing inverter noise
12/23/2004US20040257836 Rapid current demand microprocessor supply circuit
12/23/2004US20040257835 Programmable AC/DC power supply
12/23/2004US20040257834 High output power quasi-square wave inverter circuit
12/23/2004US20040257832 Permanent magnet induction machine
12/23/2004US20040257052 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies
12/23/2004US20040257035 Combination of power supply and detachable electric implement
12/23/2004DE10323502A1 Device to suppress disturbing currents of given frequency in current supply for railed vehicles has feedback through an analog to digital converter and a digital filter
12/22/2004EP1489729A2 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies
12/22/2004EP1489728A2 Electric circuit for a voltage converter
12/22/2004EP1489716A1 A battery-charger device with improved stability
12/22/2004CN2666029Y Device for improving electrochemical capacitor life
12/22/2004CN2666028Y Structure improvement of power factor corrector
12/22/2004CN2666027Y High-pressure large power frequency converter with double heat radiation fans system
12/22/2004CN1556587A Micro power triggering method of thyristor and circuit thereof
12/22/2004CN1556578A Parallel synchronous phase locking method of uninterrupted power source
12/21/2004US6834002 Power factor correction circuit
12/21/2004US6833745 Signal generator for charge pump in an integrated circuit
12/21/2004US6833693 EMI reduction of power converters by way of controlled randomized modulation of oscillating signals
12/21/2004US6833689 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies
12/20/2004CA2471685A1 Programmable ac/dc power supply
12/16/2004WO2004109899A1 Voltage conversion device and electric car
12/16/2004WO2004109896A2 Active emi filter having no inductive current sensing device
12/16/2004WO2004109191A1 Air-conditioner
12/16/2004WO2004108996A2 Electrophoretic dipping system
12/16/2004WO2004036401A3 Bus controlled power switch
12/16/2004US20040254201 Substituted-1,3-oxathiolanes and substituted-1,3-dioxolanes with antiviral properties
12/16/2004US20040252534 Voltage converting method and voltage converting apparatus using large electrolytic condenser
12/16/2004US20040252529 AC/DC flyback converter