Patents for H02M 1 - Details of apparatus for conversion (33,954)
08/2001
08/01/2001EP1120019A1 Circuit for controlling a load to be supplied by an alternating current voltage
07/2001
07/31/2001US6269015 Power supply apparatus for ARC-utilizing apparatuses
07/31/2001US6269012 Energy efficient power supply with light-load detection
07/31/2001US6268754 Gate driving circuit for power semiconductor switch
07/26/2001WO2001054260A1 Switching power supply with storage capacitance and power regulation
07/26/2001WO2001054259A1 Method for starting a switching power supply and a switching power supply comprising a starting circuit
07/26/2001WO2001054258A1 Method for starting a switched-mode power supply and switched-mode power supply with a starting circuit
07/26/2001US20010009517 Method for switching off a switched-mode power supply in the event of short-circuit, and a switched- mode power supply
07/26/2001US20010009516 Active clamp forward converter
07/25/2001EP1118253A2 Ballast circuit with lamp current regulating circuit
07/25/2001EP0929926A4 Method and apparatus for supplying contactless power
07/25/2001CN1068998C Half-bridge driver circuit
07/25/2001CN1068997C Converter circuit device
07/25/2001CN1068995C Power source apparatus
07/24/2001US6266261 DC power adapter system
07/24/2001US6266260 Inverter having center switch and uninterruptible power supply implementing same
07/24/2001US6266256 Circuit for correcting the power factor
07/24/2001US6266255 Efficient power supply with small transformers
07/24/2001US6265855 Coordinated switching in a multiple switching regulator system to lower peak current load
07/19/2001WO2001052415A1 High power modulator
07/19/2001WO2001052395A1 Method and apparatus for driving switching elements of current-controlled power conversion device
07/18/2001EP1023765A4 Method and apparatus for reducing power loss in power conversion circuitry
07/18/2001EP0958647B1 Device for transforming a three-phase voltage system
07/18/2001CN1304629A Circuit arrangement
07/18/2001CN1304205A Electric source switch appliance
07/17/2001US6262899 Power factor corrected UPS maintaining neutral integrity and methods of operation thereof
07/17/2001US6262618 Shoot-through prevention circuit for motor controller integrated circuit gate driver
07/12/2001DE10060429A1 Power transmitter; has control circuit to transmit n instruction signals to n power converter circuits, which are driven to transfer n pulse width modulated signals out of phase by 360/n degrees
07/11/2001WO2001003277A2 Control of dc/dc converters having synchronous rectifiers
07/11/2001EP1115202A1 Drive circuit for semiconductor power device and semiconductor switching circuit using the drive circuit
07/11/2001CN2439137Y Personal computer switch source power-factor booster circuit
07/11/2001CN1303167A Universal power source apparatus
07/11/2001CN1068423C Control apparatus for controlling motor of air conditioner
07/11/2001CA2378666A1 Control of dc/dc converters having synchronous rectifiers
07/10/2001US6259618 Power chip set for a switching mode power supply having a device for providing a drive signal to a control unit upon startup
07/10/2001US6259614 Power factor correction control circuit
07/10/2001US6259613 Power factor correction (PFC) circuit
07/10/2001US6259611 PWM power converter
07/05/2001WO2001048905A2 Variable frequency electric signal generator, automatic control and low cost computing means
07/05/2001WO2001048516A2 Emi reduction for isolated bus systems
07/05/2001US20010006470 Chopping circuit, in particular for an automotive vehicle, with improved filtering
07/05/2001DE19961705A1 Arrangement for decentralized supply of regenerative energy performs voltage regulation at combination point for controlled improvement of quality of electrical supply
07/04/2001EP1113710A1 Electronic ballast for operating a low pressure discharge lamp
07/04/2001EP0832006B1 High voltage power converter system
07/04/2001CN1302473A Switching power supply circuit
07/04/2001CN1302472A Power factor correction application
07/04/2001CN1302113A DC-AC exchanger
07/03/2001US6256214 General self-driven synchronous rectification scheme for synchronous rectifiers having a floating gate
07/03/2001US6256209 AC to DC conversion arrangement
07/03/2001US6255806 Supply device for power supply to an electronic unit in a semiconductor valve in a shunt-connected thyristor-switched capacitor
06/2001
06/28/2001WO2001047094A2 Method and control circuitry for a three-phase three-level boost-type rectifier
06/28/2001US20010005323 Power circuit with smoothing choke coil inductance varying circuit
06/28/2001US20010005322 Dc-to-dc converter having an improved surge suppressor
06/28/2001US20010005152 Drive circuit for semiconductor power device and semiconductor switching circuit using the drive circuit
06/28/2001DE19963282A1 Elektronisches Vorschaltgerät zum Betrieb einer Niederdruck-Entladungslampe Electronic ballast for operating a low-pressure discharge lamp
06/28/2001DE19958041A1 Verfahren zur Steuerung bidirektionaler Schalter in Matrixumrichtern Method for controlling bidirectional switch in matrix converters
06/27/2001EP1111764A2 Drive apparatus for vibrating-type compressor
06/27/2001EP1110318A1 High efficiency high frequency resonant gate driver for power converter
06/27/2001EP1110299A1 An apparatus for controlling voltage-charge controlled power semiconductor devices
06/27/2001EP1110292A1 Electric circuit
06/27/2001EP0972334B1 Switched-mode power supply with regulation of line current consumption
06/27/2001CN1301080A Method and device for suppressing ripples for high-power DC power supply
06/20/2001EP1109302A2 Power supply
06/20/2001CN1067500C Power supply unit
06/20/2001CN1067497C Driving circuit for IGBT
06/19/2001US6249876 Frequency jittering control for varying the switching frequency of a power supply
06/19/2001US6249411 Over-voltage protection circuit and method for preventing system shutdown in a power system employing multiple power supplies
06/19/2001US6249156 Electric circuit
06/19/2001CA2268480C Universal harmonic mitigating system
06/14/2001WO2001043267A1 Power supply with flux-controlled transformer
06/14/2001WO2001043263A1 Electronic ballasts with current and voltage feedback paths
06/13/2001EP1107436A2 Method and system for avoiding interferences on the supply network in the operation of a pulse current rectifier
06/13/2001DE19957132C1 Schutzvorrichtung gegen die durch Schaltvorgänge einer Energieversorgung verursachten Überspannungen an Klemmen eines elektrischen Betriebsmittels Guard against disease caused by switching operations of a power supply surges at the terminals of electrical equipment
06/12/2001US6246598 High-voltage modulator system
06/12/2001US6246596 Switching power supply
06/12/2001US6246595 Series control of electric ARC furnaces
06/12/2001CA2088059C Miniaturized switching power supply with programmed level gate drive
06/07/2001WO2001041290A2 Method for controlling bi-directional switches in matrix converters
06/07/2001WO2001041278A1 A three stage power conditioning circuit
06/07/2001WO2001003490A3 Apparatus for increasing the voltage utilization of three-phase pwm rectifier systems with connection between output center point and artificial mains star point
06/07/2001DE10050380A1 Vorrichtung zur weltweiten Leistungsversorgung Device for global power supply
06/06/2001EP1104949A2 Coordinated switching in a multiple switching regulator system to lower peak current load
06/06/2001EP1104553A1 Switching power supplies with linear precharge, pseudo-buck and pseudo-boost modes
06/06/2001CN1066891C Power supply with feedback loss protection arrangement
06/05/2001US6243277 Bi-directional dc to dc converter for energy storage applications
06/05/2001US6242968 Semiconductor power converting apparatus
06/05/2001CA2244044C Current mode controller for continuous conduction mode power factor correction circuit and method of operation thereof
05/2001
05/31/2001WO2001039556A1 Circuit device for operating a discharge lamp by means of a high-frequency current
05/31/2001WO2001039347A1 Protective device against overpotential in the terminals of electrical equipment, caused by switching operations
05/30/2001EP1104083A1 Power factor correcting electrical converter apparatus
05/30/2001EP1103096A1 Switching power supply circuit
05/30/2001EP0901691B1 Control equipment for an active filter
05/30/2001CN1297604A Circuit for correcting power factor
05/30/2001CN1297306A Frequency related X-ray protector for multimedia monitor
05/30/2001CN1297280A Control of line harmonic
05/29/2001US6239995 Resonant-boost-input three-phase power factor corrector with a low current stress on switches
05/29/2001US6239992 Electric power unit with early auxiliary capacitor charging
05/23/2001EP1102388A2 High-voltage X-ray generator
05/23/2001EP1102387A2 DC power supply apparatus
05/23/2001DE19955406A1 Method for controlling multiple electrical loads operated from one source of power e.g. for motor vehicle, involves synchronizing time point and/or length of pulse triggering for operating current for loads with the operation of other loads