Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › H02M 1 - Details of apparatus for conversion
Patents for H02M 1 - Details of apparatus for conversion (33,954)
11/1982
11/17/1982EP0064498A1 Electrical switching device
11/09/1982US4358730 AC Power control circuit
11/09/1982US4358688 Controllable voltage converter system having a high switching speed
11/09/1982CA1135336A1 Transistor switching circuit
11/03/1982EP0063749A2 Composite circuit for power semiconductor switching
11/03/1982EP0063673A1 Sine wave synchronisation voltage generating circuit for SCR firing
10/1982
10/26/1982US4356525 Method and circuit for controlling a hybrid contactor
10/26/1982CA1134438A1 Method of and apparatus for eliminating priming and carrier sweep-out losses in scr switching circuits and the like
10/26/1982CA1134437A1 Method of and apparatus for enabling soft-failure of modular power converter systems, including rf generator systems, embodying switching components in the power conversion
10/19/1982US4355353 Power supply apparatus
10/19/1982US4355243 Sinusoidal output generator
10/14/1982WO1982003507A1 Device for controlling thyristors connected in series
10/12/1982US4354121 Field controlled thyristor control circuit with additional FCT in reverse bias circuit
10/05/1982US4353114 DC/DC Converter
10/05/1982CA1133055A1 Frequency sensitive switching circuit
09/1982
09/29/1982EP0061343A2 An arrester device for protecting a thyristor valve arrangement from overvoltage
09/28/1982US4352156 AC to AC Power converter with a controllable power factor
09/28/1982US4352155 Variable speed constant frequency power converter with two modes of operation
09/28/1982CA1132656A1 Circuit for protecting anti-parallel-connected switches against overvoltages
09/21/1982US4350949 Bidirectional switching circuit with control terminal
09/21/1982CA1132196A1 Control unit for multi-phase static converter
09/15/1982EP0060190A1 Improvements of D.C. converters
09/08/1982EP0059537A2 Switching circuit
09/08/1982EP0059326A1 A stepper motor drive circuit for synchronous switching of core winding
09/08/1982EP0059271A1 Method and device for the generation of a gatepulse for the ignition of a main thyristor
09/07/1982US4348718 Timing generator for use with multi-phase control rectifier systems
09/01/1982EP0059053A2 Switched mode power supply
08/1982
08/31/1982US4347562 Digital power converter trigger
08/31/1982CA1130858A1 Harmonic cancellation for multi-bridge, three-phase converters
08/31/1982CA1130857A1 Switching regulator with high efficiency starting resistor circuit
08/24/1982US4346309 Controllable rectifier circuit
08/18/1982EP0057910A2 Circuit for the regulated supply to a user
08/17/1982US4345190 Chopper control system
08/11/1982EP0057340A2 Automatic device for the compensation of the voltage variations of the polyphase alternating current mains applied to an AC-DC converter
08/04/1982EP0057025A2 Switching circuit
08/03/1982CA1128990A1 Inverter circuits
07/1982
07/20/1982US4340931 Power supply system
07/20/1982US4340849 Ripple-compensated voltage regulator, particularly for automotive use
07/14/1982EP0055941A1 Inverter power supply capable of operation at high frequencies
07/13/1982CA1127713A1 Device for displaying ignition and conduction completion phase angles
06/1982
06/29/1982CA1126812A1 Power conversion apparatus
06/22/1982US4336563 Overcurrent protection circuit for inverter
06/16/1982EP0053812A2 Thyristor stack
06/08/1982US4334254 Gated snubber circuit
06/08/1982US4334182 Motor control system
06/02/1982EP0053028A1 Semiconductor switch
06/01/1982US4333137 Thyristor switch with transient protection and RF interference suppression
06/01/1982US4333048 Thyristor control circuits
06/01/1982US4333042 System for driving a motor by a pulse width modulation inverter
06/01/1982CA1124869A1 Control unit for a converter
05/1982
05/25/1982US4331994 Shootthrough fault protection system for a voltage source transistor inverter
05/19/1982EP0051663A1 Pulse generating system
05/19/1982EP0051612A1 A control device for a silicon-controlled rectifier
05/18/1982US4330820 Circuit for forming periodic pulse patterns
05/18/1982US4330817 Process and system for controlling the energization of a load
05/13/1982WO1982001627A1 High voltage high frequency dc-dc power supply
05/12/1982EP0051416A1 A safety circuit for preventing or reducing phase control system malfunction
05/12/1982EP0016762B1 Device for smoothing an output voltage of an electric generator
05/11/1982US4329595 AC Resonant charger with charge rate unrelated to primary power frequency
05/05/1982EP0050753A1 Circuit arrangement to supply an alternative current user with an alternative voltage and more particularly with a sinous voltage
04/1982
04/27/1982US4327420 Polyphase reference generator
04/27/1982CA1122647A1 Rapid transit system transient voltage suppression apparatus
04/21/1982EP0049839A2 Method of inducing dynamic firing-angle reliability in a line-conducted converter
04/20/1982US4326160 Control unit for static converter
04/13/1982US4325114 Gate controlling circuit for a thyristor converter
04/06/1982US4323960 Dual mode direct current power supply
04/06/1982US4323959 Power supply with resonant inverter circuit using variable frequency control for regulation
03/1982
03/30/1982US4322790 Calibration source for instruments to measure power and negative sequence current of dynamoelectric machines
03/30/1982US4322785 Transistor switching circuit
03/30/1982US4322772 Rapid transit system transient voltage suppression apparatus
03/16/1982US4320445 Gate control circuit for thyristor converter
03/16/1982US4320336 Circuit arrangement for the on-off switching of a line voltage to and from a load
03/16/1982US4320305 Method and voltage source for producing a smoothed voltage from three-phase current
03/16/1982CA1120102A1 Gate controlling apparatus for a thyristor valve
03/09/1982US4319318 Voltage reapplication rate control for commutation of thyristors
03/09/1982US4319317 D.C. Power supply
03/09/1982CA1119667A1 High voltage semiconductor converter protective apparatus
03/03/1982EP0046515A2 Blocking oscillator switching power supply unit
03/02/1982US4318171 Method of three commutation on rectifiers and of inverted electric current converters
03/02/1982US4317975 Induction heating apparatus with means for detecting zero crossing point of high-frequency oscillation to determine triggering time
02/1982
02/24/1982EP0046207A1 Switched-mode power supply
02/23/1982US4317166 Circuit arrangement for self-commutated inverters
02/18/1982WO1982000549A1 Electrical switching device
02/16/1982CA1118511A1 Control logic for an inverter ripple controlled power system
02/16/1982CA1118491A1 Control circuit for igniting thyristors and reporting back thereon
02/09/1982US4315305 Controlled D-C power supply
02/02/1982US4314195 Solid state control for motor-generator welder
01/1982
01/27/1982EP0044663A2 Improvements in or relating to d.c. converters
01/26/1982US4313156 Gate controlling circuit for a thyristor converter
01/26/1982US4313061 Method and apparatus for supplying electric current to a number of electrical loads
01/19/1982US4311955 Phase control device which compensates for input variations
01/13/1982EP0043516A2 Electric filtration device
01/13/1982EP0043510A1 Circuit arrangement for switching half-waves in synchronism with the supply voltage
01/12/1982US4310866 Shootthrough fault protection system for bipolar transistors in a voltage source transistor inverter
01/05/1982US4309749 Circuit having improved firing angle symmetry for ignition pulses in the control of a multipulse rectifier
12/1981
12/30/1981EP0042382A1 Apparatus for providing multiphase current
12/29/1981US4308577 Base drive circuit
12/29/1981US4308575 Power source system
12/22/1981US4307346 Phase detecting circuit
12/08/1981US4305132 Method to eliminate the noise at known frequency
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