Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094)
08/1986
08/27/1986CN85102835A Three phase field-modulated alternator
08/20/1986EP0191178A1 Saturation-monitoring arrangement for a welding device containing a frequency converter
08/19/1986US4607206 Flux control for induction motor drive using load commutated inverter circuit
08/14/1986WO1986004751A1 A.c. power supply systems
08/13/1986EP0190904A2 Series resonant converter
08/06/1986EP0189832A1 Excitation current control for induction motor drive using load commutated inverter circuit
08/06/1986EP0089984B1 Interference suppressing circuit for phase-controlled light dimmers
07/1986
07/30/1986EP0189211A2 Method for natural commutation piloted by the network or load
07/23/1986CN85107714A Current source conversion apparatus having auto-cutoff devices
07/22/1986US4602200 Alternating current motor drive having current filter
07/22/1986US4602199 Control for induction motor drive using load commutated inverter circuit
07/22/1986US4602198 Induction motor drive using load commutated inverter circuit
07/22/1986CA1208381A1 Apparatus for controlling an a-c power elevator
07/16/1986CN86100229A Self-controlled variable inductor with air gaps
07/15/1986US4600877 Arrangement in transformers
07/15/1986US4600874 Excitation current control for induction motor drive using load commutated inverter circuit
07/15/1986CA1207834A1 Unrestricted frequency changer system and adjustable frequency ac motor drive using such a system
07/09/1986EP0187042A2 Apparatus for operating cycloconverters in parallel fashion
07/08/1986US4599519 Superconducting magnetic energy storage for asynchronous electrical systems
07/02/1986EP0186598A1 Three-phase electric-power supply for an ozone generator
07/02/1986EP0186513A2 Control method for cycloconverter and control apparatus therefor
07/02/1986CA1207022A Current supply apparatus for an a.c. consumer
07/02/1986CA1207017A Control for an electrostatic treater
07/01/1986US4598349 Electronic transformer composed of flyback converters
06/1986
06/24/1986US4597039 Switched capacitor induction motor drive
06/24/1986CA1206520A1 Starting system for chopper controlled motor- commutated thyristor inverter
06/18/1986EP0184659A1 Mulitplexing apparatus for phase-control circuits
06/17/1986US4595843 Low core loss rotating flux transformer
06/10/1986CA1205851A1 Capacitively ballasted low voltage incandescent lamp
06/10/1986CA1205850A1 Power supply for low voltage incandescent lamp
06/10/1986CA1205849A1 Capacitively ballasted low voltage incandescent lamp
06/04/1986EP0183307A2 Electronic device for feeding an ion pump with two different tensions and for improved measuring of the pressure in said pump
05/1986
05/27/1986US4591781 Variable control circuit having a predetermined timed output
05/27/1986US4591728 Transformerless power unit
05/20/1986US4590548 A.C. supply converter
05/20/1986CA1204819A1 Power supply
05/14/1986EP0180967A2 Process to operate an inverter producing a low-frequency AC from a DC, and circuit for the application of this process
05/13/1986US4589059 Method of starting a current-fed inverter with self-excitation
05/06/1986US4587591 Power supply for ozone generator
04/1986
04/22/1986US4584519 For controlling the application of an AC voltage to a load
04/22/1986CA1203567A1 Voltage-controlled, inverter-motor system
04/22/1986CA1203566A1 Control and stabilizing system for damperless synchronous motor
04/16/1986EP0177754A2 Frequency converter apparatus
04/10/1986WO1986002211A1 Current supply circuit of an essentially inductive charge
04/09/1986EP0176779A1 Switch device with two terminals
04/08/1986US4581696 Control method and apparatus for a UFC for minimizing input current distortions
04/01/1986US4580205 Current-type GTO inverter using GTO in its surge voltage clamping circuit
04/01/1986US4580088 Soft-starting phase-control circuit for low voltage load
03/1986
03/25/1986US4578746 Interlaced pulse-width modulated unrestricted frequency changer system
03/25/1986US4578744 A. C. power converter
03/19/1986EP0174786A2 Solid state power controller with overload protection
03/18/1986CA1202077A1 Apparatus for controlling power consumption in lighting loads and the like
03/11/1986CA1201787A1 Incremental digital converter
03/04/1986US4574341 Current supply apparatus for an A.C. consumer
03/04/1986CA1201478A1 Microprocessor controlled voltage regulation transformer
02/1986
02/27/1986WO1986001365A1 A dimmer power stage
02/26/1986EP0172254A1 High frequency noise absorbing circuit
02/25/1986US4573113 Surge protection system for a d-c power supply during power-up
02/20/1986EP0155300A4 Current regulator for carpet seaming apparatus.
02/18/1986CA1200838A1 Power supply for low-voltage incandescent lamp and like load
02/11/1986US4570214 Reactive power control cycloconverter
02/04/1986US4568871 Balancing system for limiting voltage imbalance across series-connected capacitors
01/1986
01/29/1986EP0169756A1 Stabilized electrical-power supply
01/28/1986US4567555 Current-type GTO inverter with surge energy restoration
01/28/1986US4567425 Method of and apparatus for half-cycle-average or R.M.S. load voltage control
01/28/1986US4567375 Soft switch with positive on and off states
01/28/1986CA1199982A1 Three phase square wave welding power supply
01/22/1986EP0169142A1 Static power frequency converter
01/21/1986CA1199680A1 Circuit for reducing harmonics and pulsation in multiplex polyphase rectifying circuits or inverters, respectively provided with interphase reactors
01/10/1986CN85105555A Electronic circuit for regulating voltage and timing and its device
01/07/1986US4563624 Variable speed refrigeration compressor
01/07/1986US4563592 Wall box dimmer switch with plural remote control switches
12/1985
12/10/1985US4558261 Exclusive plug for artistic table lamps
12/03/1985US4556824 Light-adjustment and switch structure for artistic table lamps
11/1985
11/26/1985CA1197330A1 Control device for an a.c. elevator
11/21/1985EP0161738A1 Semi-conductor motor control system
10/1985
10/29/1985US4550285 Load-switching circuit for antiparallel thyristor networks and a tapped transformer
10/22/1985US4549256 Inverter arcing control for a parallel-resonant circuit static frequency changer
10/09/1985EP0157689A1 Adjustable AC voltage generator
10/08/1985US4545464 Apparatus for controlling an A-C power elevator
10/08/1985CA1194929A1 Coordinated load commutated inverter protection system
10/01/1985US4545002 Thyristor voltage limiter for current source inverter
10/01/1985CA1194545A1 Twelve pulse load commutated inverter drive system
09/1985
09/25/1985EP0155300A1 Current regulator for carpet seaming apparatus.
09/04/1985EP0153751A2 Power converter for AC load
09/03/1985CA1192958A1 Three terminal solid state pilot light
08/1985
08/29/1985WO1985003813A1 High frequency noise absorbing circuit
08/27/1985US4538220 Adjustable frequency AC motor drive using an unrestricted frequency changer system
08/20/1985US4536835 Direct A.C. to A.C. converter controlled by a data processor
08/13/1985US4535280 Stabilizing circuit for an inverse rectifier motor control
07/1985
07/30/1985US4532581 Circuit for reducing harmonics and pulsation in multiplex polyphase rectifying circuits or inverters, respectively provided with interphase reactors
07/16/1985US4529925 Reactive power compensating cycloconverter
07/10/1985EP0147490A1 Power supply input system
07/09/1985US4528494 Reverse-phase-control power switching circuit and method
07/09/1985CA1190283A1 Electronic infinite heat control
07/03/1985EP0147097A2 Fiber optic switching device
07/02/1985US4527214 Power inverter with overload protection apparatus
06/1985
06/26/1985EP0146032A2 Method and apparatus for the conversion of a polyphase voltage system
06/25/1985US4525651 Capacitively ballasted low voltage incandescent lamp
06/18/1985CA1189141A1 Isolated zero phase firing control