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)
12/1983
12/27/1983US4423461 Power supply for corona discharge treatment system
12/20/1983US4422138 Power supply for low-voltage load
12/06/1983US4419619 Microprocessor controlled voltage regulating transformer
11/1983
11/29/1983US4418380 Method and apparatus for controlling the circulating current of a cycloconverter
11/16/1983EP0094166A1 Lighting control system
11/15/1983US4415848 Alternating current power source apparatus for car
11/15/1983US4415838 Frequency converter for supplying an electrodeless discharge lamp
11/01/1983US4413216 Static frequency changer for feeding synchronous machines
10/1983
10/18/1983US4410839 Apparatus for controlling power consumption in lighting loads and the like
10/18/1983US4410838 Apparatus for controlling power consumption in lighting loads and the like
10/11/1983CA1155235A1 Circuit system for lighting discharge lamp or lamps
10/05/1983EP0089984A1 Interference suppressing circuit for phase-controlled light dimmers.
09/1983
09/20/1983US4405888 Adapter for intermediary circuit of a static converter assembly
08/1983
08/31/1983EP0087115A1 Power and control apparatus of a synchronous machine running variable speed
08/30/1983CA1153063A1 Ac motor drive system having clamped command error signal
08/24/1983EP0086641A2 Three phase square wave welding power supply
08/23/1983US4400629 Delta-star connection
08/23/1983CA1152561A1 Converters
08/16/1983US4399395 Line-to-line voltage reconstruction for synchronizing thyristor power converter
08/16/1983CA1152151A1 Shootthrough fault protection system for a voltage source transistor inverter
08/10/1983EP0085338A1 Device for determining the common frequency of two independently variable alternating values, in particular in a rotating field machine
08/02/1983US4396869 Time responsive variable voltage power supply
07/1983
07/26/1983US4395660 Lamp dimmer circuit utilizing opto-isolators
07/26/1983CA1150800A1 Field effect transistor switched temperature control circuit
07/20/1983EP0083866A2 An A.C. supply converter
07/19/1983US4394720 Auto-stabilized high power electric generator especially adapted for powering processes involving discharge in a rarefied gaseous atmosphere
07/06/1983EP0083012A1 Method and system for controlling output voltage of pulse width modulation inverter
07/05/1983CA1149456A1 Frequency multiplication
06/1983
06/28/1983US4390941 Static magnetic frequency multiplies
06/28/1983US4390938 Cycloconverter apparatus with controllable end stop firing pulse control means
06/22/1983EP0081723A1 Device for the control of the output voltage of a polyphase cycloconverter
06/15/1983EP0020725B1 Phase control arrangement to limit output signal transients during power source substitution in an uninterruptible power supply
05/1983
05/18/1983EP0078923A1 Method of operating an intermediate circuit inverter, and circuit arrangement for carrying out the method
05/18/1983EP0078908A2 Regulation transformer
05/04/1983EP0078117A2 Inverter circuit
04/1983
04/14/1983WO1983001363A1 Deparasiting circuit in a light intensity regulator operating according to the phase breakdown principle
04/13/1983EP0076510A2 Spray gun
04/05/1983US4379325 System for bridging brief network failures
03/1983
03/23/1983EP0074790A1 Plastic treater
03/15/1983US4376911 Circuit system for lighting a discharge lamp or lamps
03/08/1983CA1142584A1 Inverter system including commutation failure prevention scheme
02/1983
02/23/1983EP0072527A2 Variable speed constant frequency power converter with two modes of operation
02/23/1983EP0072526A1 AC to AC power converter with a controllable power factor
02/15/1983CA1141133A1 Method of curing phenolic resin in an electrical apparatus without degrading polyethyleneterephthalate insulation also in the electrical apparatus
02/01/1983US4371920 Polyphase frequency converter with individually current-regulated outputs
01/1983
01/18/1983US4369377 Current control device
01/18/1983CA1139839A1 Simple method of switching an ac line
01/11/1983US4368419 Power supply and method utilizing applied current for increased hysteresis swing in transformer core
12/1982
12/21/1982CA1138037A1 Rectifier-type ac motor speed control
12/08/1982EP0066191A1 Control device of a static AC-AC converter with thyristors to supply variable frequency current to a synchronous rotating machine
12/08/1982EP0066115A2 Electronic circuit for controlling the supply voltage of electromagnets, electric motors, resistors, in single- and three-phase systems
12/07/1982CA1137165A1 Phase angle balancing circuit for a variable speed constant frequency power system
11/1982
11/30/1982US4361798 System for extending the voltage range of a phase-fired triac controller
11/23/1982US4360743 Solid state control device for gradually turning on and off an electrical load
11/23/1982US4360740 Low voltage switching circuit for controlling a high voltage electrical load
11/23/1982CA1136215A1 Power supply and control circuit for series connected controller
11/17/1982EP0064498A1 Electrical switching device
11/10/1982EP0064450A1 Self adjusting method and apparatus for actuating a triac
11/09/1982US4358730 AC Power control circuit
11/09/1982US4358729 Thyristor driver controller for reactive loads and method of operation thereof
11/03/1982EP0063745A2 Regulating device for a self piloted inverter with an intermediate D.C. circuit
10/1982
10/26/1982CA1134435A1 Method and control for maintaining optimum performance of hvdc power transmission systems at rectifier end during a.c. system fault
10/26/1982CA1134434A1 Electrical energy conversion system with bilateral switch
10/19/1982US4355242 Voltage regulating system
10/19/1982CA1133988A1 Apparatus for controlling the power supplied to a load
10/12/1982CA1133579A2 Power supply for a high density discharge or fluorescent lamp
10/05/1982US4353025 Phase controlled voltage reducing circuit having line voltage compensation
09/1982
09/29/1982EP0061028A2 Control circuit
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
09/14/1982US4349867 Control apparatus for a cycloconverter
08/1982
08/17/1982US4345200 Load output level control circuit
08/10/1982CA1129496A1 Power supply and control circuit for series connected controller
07/1982
07/20/1982CA1128126A1 Circuit arrangement for producing reactive currents rapidly variable in magnitude and curve shape, and control and regulating units therefor
07/13/1982US4339783 Alternating current corona discharge apparatus
06/1982
06/29/1982US4337430 Inductive-load power control circuit
06/08/1982US4334171 Light dimmer switch having remote load current switching
06/01/1982US4333138 Power supply for load controller
06/01/1982US4333134 Converters
05/1982
05/25/1982US4331994 Shootthrough fault protection system for a voltage source transistor inverter
05/25/1982US4331914 Load control and switching circuits
05/19/1982EP0051638A1 Automatic fault protection system for power recovery control
05/18/1982US4330817 Process and system for controlling the energization of a load
05/18/1982CA1123907A1 Frequency inverter
05/04/1982US4328528 Two-wire condition control circuit means
05/04/1982US4328454 Apparatus for controlling ac motor
04/1982
04/21/1982EP0049839A2 Method of inducing dynamic firing-angle reliability in a line-conducted converter
04/20/1982US4326246 Circuit arrangement of an inverted current rectifier with self commutation
04/06/1982US4323845 Power regulating apparatus including load current sensor means
03/1982
03/23/1982US4321508 Load control and switching circuits and remote/local control systems using such circuits
03/23/1982CA1120542A1 Ferroresonant voltage regulator incorporating auxiliary winding for large current magnitudes of short duration
03/09/1982US4319182 Alternating polarity power supply control apparatus
03/02/1982US4318008 Random power controller
03/02/1982US4317975 Induction heating apparatus with means for detecting zero crossing point of high-frequency oscillation to determine triggering time
02/1982
02/23/1982US4317166 Circuit arrangement for self-commutated inverters
02/23/1982US4317071 Computerized illumination system
02/23/1982CA1118837A1 Converter including oscillatory circuit
02/18/1982WO1982000549A1 Electrical switching device
02/10/1982EP0045468A1 Device for bridging short-time network failures in voltage converters with an intermediate link
02/10/1982EP0045442A2 Inverter with multiphase output having an own current regulation for each phase