Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
01/1987
01/27/1987US4639849 Snubber circuit for H.F. bridge converter
01/27/1987US4639848 Method and system for controlling an AC-DC converter system
01/27/1987US4639847 Circuit arrangement for controlled power supply devices particularly for autoconverters
01/27/1987US4639846 Method and compensating device for compensating current oscillations
01/27/1987US4639845 Voltage inverter
01/27/1987US4639844 Resonant current driven power source for low input voltages
01/27/1987US4639663 Fly-back transformer with reduced ringing
01/27/1987US4639662 Thyristor circuit for current regulation
01/27/1987US4639660 Switching circuit for a power supply in a signal processing apparatus
01/21/1987EP0209500A1 Method and arrangement at a transformer
01/21/1987EP0208716A1 Inverter control
01/20/1987US4638420 Apparatus for maintaining constant frequency in a DC to square wave inverter
01/20/1987US4638419 Process and device for determining the mean value of the current delivered by a controllable valve rectifier bridge
01/20/1987US4638418 Power inverter
01/20/1987US4638416 Method and apparatus for high-voltage D.C. transmission with a bypass circuit for malfunctions
01/20/1987US4638415 Method and apparatus for resumption of normal operation of a high-voltage D. C. transmission line
01/20/1987US4638240 Base drive circuit for high-power switching transistor
01/20/1987US4638176 Uninterruptible power supply
01/20/1987US4638138 High frequency inverter circuit for melting and induction heating
01/20/1987CA1216890A1 Rectifier circuits
01/15/1987DE3524632A1 Device for forming the actual current value in three-phase current block feeding
01/15/1987DE3524522A1 Energy recovery circuit for antiparallel-connected electronic branch pairs
01/15/1987DE3524169C1 Circuit arrangement for a transformer-supplied, controllable single-phase converter bridge
01/14/1987EP0208204A2 Optically controlled power converting apparatus
01/14/1987EP0208088A1 Device for producing a three-phase voltage system with a neutral cable to be loaded
01/14/1987EP0208065A2 Circuit arrangement for driving high-voltage power transistors
01/13/1987US4636933 Power control circuit with digital pulse width control
01/13/1987US4636932 dv/dt Protection circuit device for an AC-DC converter apparatus
01/13/1987US4636929 Abnormal state detecting circuit of inverter
01/13/1987US4636928 Inverter-drive controlling apparatus
01/13/1987US4636927 DC to AC converter
01/13/1987US4636655 Circuit in which output circuit and operational amplifier equipped input circuit are electrically isolated
01/13/1987CA1216626A1 Method and apparatus for controlling switches in an inverter
01/13/1987CA1216625A1 Current source sine wave inverter
01/08/1987DE3528641A1 High-voltage DC voltage source
01/08/1987DE3523530A1 Method for the transition to synchronous pulse-duration modulation in the case of a pulse converter
01/08/1987DE3522872A1 Digital method and device for synchronous control of a mains-commutated converter
01/07/1987EP0207408A1 Method of controlling the phase angle of the output-voltage or current of an inverter, and device for carrying it out
01/06/1987US4635181 Bridge circuit for reduced switching losses
01/06/1987US4635178 Paralleled DC power supplies sharing loads equally
01/06/1987US4635177 Control for a neutral point clamped PWM inverter
01/06/1987US4635176 High voltage DC generator with reduced ringing and voltage fluctuation
01/06/1987US4634952 Inverter
01/06/1987US4634888 Uninterruptible power supply
01/06/1987CA1216323A1 Method and apparatus for controlling pwm inverter
01/02/1987DE3522025A1 Method for operating a zero-current signalling device for a double converter which is free of circulating current
01/02/1987DE3521983A1 Discharging circuit without significant losses for symmetrically arranged electronic switches in branched pairs
12/1986
12/31/1986CN85105133A Invertor apparatus
12/31/1986CN85102904A Microthyristor circuit and device
12/30/1986US4633382 Inverter control system
12/30/1986US4633379 DC-DC converter having feedback type switching voltage converting circuit
12/30/1986US4633241 Method of automated in-place SCR testing
12/30/1986US4633141 Low voltage power source power inverter for an electroluminescent drive
12/30/1986EP0206395A1 Superconducting rectifier for the conversion of a relatively low alternating current into a relatively high direct current
12/30/1986EP0206150A2 Power supply installation for DC electric railroad
12/30/1986EP0206104A2 FET gate driver circuit
12/30/1986EP0205477A1 Control for a neutral point clamped pwm inverter
12/30/1986CA1216023A1 Phase detecting apparatus
12/30/1986CA1216022A1 Current spreading circuit
12/30/1986CA1216019A1 High voltage generating circuit for an automatic ignition system
12/23/1986US4631656 Mounting for electrical converter valve assembly
12/23/1986US4631652 Frequency controlled resonant regulator
12/23/1986US4631573 Heat sink structure
12/23/1986US4631449 Integral crystal-controlled line-voltage ballast for compact RF fluorescent lamps
12/23/1986CA1215742A1 Electrical power supply
12/18/1986WO1986007501A1 Proportional base drive circuit
12/17/1986EP0205287A2 Improvements in or relating to switched mode power supplies
12/17/1986EP0205100A2 Method and system for preventing an excessive voltage build-up in a power converter system
12/17/1986CN86104235A Power supply equipment for d.c. electrification railway
12/17/1986CN86103326A Electric power supply for a unidirectional load
12/17/1986CN86102980A Control apparatus for alternating elevator
12/16/1986US4630188 Multi-zone ramp system for digital pulse generator and large scale integrated chip embodying the same
12/16/1986US4629959 Method and apparatus for controlling PWM inverter
12/09/1986US4628475 Pulse width modulation pulse generator
12/09/1986US4628460 Microprocessor controlled phase shifter
12/09/1986US4628438 Power converter apparatus and method employing plural branches
12/09/1986US4628432 Proportional transistor base drive circuit for use in power converters
12/09/1986US4628219 Rectifier assembly for mounting in a rotor
12/04/1986WO1986007193A1 Cooled stack of electrically isolated semiconductors
12/02/1986US4626983 Power conversion device for solar cell
12/02/1986US4626981 Dual voltage converter circuit
12/02/1986US4626980 Power bridge having a non-dissipative snubber circuit
12/02/1986US4626979 Anticipatory feedback technique for pulse width modulated power supply
12/02/1986US4626978 Static power frequency converter
12/02/1986US4626763 Inverter system with hysteresis transition between pulse width modulation mode and pure square wave mode of operation
12/02/1986US4626701 Rectifying circuit comprising a superconductive device
12/02/1986US4626697 Power supply for providing plural DC voltages
12/02/1986CA1214825A1 Current sensor for ac/dc converter
12/02/1986CA1214824A1 Static electrical converter
11/1986
11/26/1986EP0202603A2 Cross coupled current regulator
11/26/1986EP0202579A1 Power feed apparatus for load having reverse blocking characteristics
11/26/1986EP0202499A1 Snubber circuit for GTO thyristor
11/26/1986CN86103505A Method and an arrangement for controlling the magnetizing current passing through a transformer
11/25/1986US4625272 Converter control apparatus and method
11/25/1986US4625271 Soft-start circuit for a power converter
11/25/1986US4625270 RFI suppression technique for switching circuits
11/25/1986CA1214516A1 Static power converter
11/20/1986WO1986006892A1 Circuit for producing a high direct voltage from a medium frequency alternating voltage
11/12/1986EP0201335A2 Transformer assembly and winding therefor
11/12/1986CN86101839A Output circuitry wiring of control section of a regulator