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)
03/1995
03/16/1995WO1995007571A1 A.c. controller
03/16/1995CA2171187A1 Ac power controller
03/08/1995EP0642211A2 Power conversion system
03/08/1995EP0642144A1 Device for the transmission of electric power signals to a rotating system
03/08/1995CN2191495Y AC voltage selector
03/08/1995CN2191451Y Mini-conversion power unit
02/1995
02/22/1995CN2190372Y Electromagnetic harzard eliminater for electric heating mattress
02/22/1995CN1099203A Tandem coding remote control system
02/15/1995EP0638211A1 Electronic power regulator.
02/15/1995CN2189799Y Silicon controlled rectifier stepped temp. regulator
02/14/1995US5389868 Drive control apparatus for driven machine and parameter display method in drive control apparatus for driven machine
02/09/1995WO1995004363A1 Device for transmitting electric power signals to a rotary unit
02/07/1995US5387859 Stepped waveform VSCF system with engine start capability
02/01/1995EP0637127A1 Three-phase electronic inverter for variable speed motor and method of operating same
02/01/1995EP0637121A1 Power converter assembly for the supply of an intermediate DC circuit
02/01/1995CN2188820Y Rapid current-limiting protection A/C electronic voltage regulator
01/1995
01/25/1995EP0635172A1 Compact and efficient transformerless power conversion system
01/25/1995CN2188258Y Voltage-controlling energy-saving switch
01/25/1995CN2188251Y Electronic power control socket
01/21/1995CA2128479A1 System for converting mechanical energy produced by the engine of a conventional motor vehicle into an electrical current suitable for powering household products
01/18/1995CN2187785Y Electric power changing device for asynchronous power measuring machine
01/17/1995CA2054319C Power supply unit for arc processing
01/12/1995DE4337956C1 Power controller
01/11/1995CN2187353Y Stepless voltage-regulating timer for electrical equipment
01/11/1995CN2187352Y Hand remote-control dual-purpose stepless voltage-regulating multiple-way switch
01/11/1995CN2187351Y Voltage-regulating switch starter
01/05/1995WO1995001084A1 Soft switching circuitry
01/05/1995WO1995001001A1 Converter circuit
01/04/1995CN2186971Y Silicon controlled voltage regulator
12/1994
12/28/1994EP0631372A1 Power control circuit
12/28/1994CN2186464Y Alternating low-voltage power
12/22/1994DE4322379C1 Circuit arrangement for protection of the semiconductor switches while switching a mains converter bridge, which feeds energy back into an electrical mains system, in a DC intermediate-circuit converter
12/21/1994CN2185949Y Combined application device for high voltage generator
12/21/1994CN2185931Y Multiple lamp type power supply socket
12/15/1994DE4319515A1 Direct converter (cycloconverter) system
12/14/1994CN2185487Y Power unit for electric chain saw
12/14/1994CN1096404A Single phase electropically commutated motor system and method
12/13/1994US5373224 Method and apparatus for varying the power in a load connected to the mains
12/13/1994US5373223 Power converter/inverter system with instantaneous real power feedback control
12/13/1994US5373194 Reactive power control system
12/11/1994CA2098129A1 Power reduction control for inductive lighting installation
12/07/1994EP0627870A2 Method for triggering/regulating at least two parallel resonant circuit converters
12/07/1994CN2185010Y Silicon control high frequency high voltage dc power source
12/07/1994CN2184999Y Integrate full IC thyrister middle frequency electric source device
12/06/1994US5371666 Average current mode control apparatus for an AC output amplifier
12/01/1994DE4316365A1 Control method and control circuit for a frequency converter for starting, rotation-speed adjustment, braking and positioning of three-phase asynchronous motors
11/1994
11/30/1994CN1095855A 3-phase symmetrically-inputting single phase power supply transformer
11/23/1994CN2183617Y Power control delay socket
11/22/1994US5367448 Three phase AC to DC power converter
11/15/1994US5365162 Light bulb electric life extender having a diactriac combination connecter in parallel with a capacitor
11/10/1994DE4315170A1 Circuit arrangement for influencing inrush current (switching-on current)
11/09/1994EP0623991A1 Dimming device for a load
11/09/1994CN2182505Y Whole-transistor type high frequency electric source apparatus for induction heating use
11/09/1994CN2182489Y Single-key remote-control touching voltage regulator with switch
11/09/1994CN1094872A Device for controlling the variation of the power and/or the speed of a load
11/08/1994US5363035 Phase controlled transformer
11/06/1994CA2122648A1 Power and/or speed control device
11/02/1994EP0621993A1 Power supply
11/02/1994CN2181772Y High power supply for simulation of solar cell array
11/02/1994CN2181771Y 插头式电子变压器 Plug-in electronic transformer
11/01/1994CA1332844C Two wire low voltage dimmer
10/1994
10/27/1994DE4312764A1 Detection device for identifying the remanence level in the core of a transformer
10/26/1994CN2181105Y Directly pluging type electric winding device
10/26/1994CN2180160Y Ceramic inner pot and electricity saving device used with common electric pot
10/19/1994CN1093839A Universal-current processing machine
10/18/1994US5357419 Compact and efficient transformerless power conversion system
10/13/1994WO1994023482A1 Power factor corrected ups with improved connection of battery to neutral
10/12/1994EP0619643A1 Alternate voltage, adjustable dissymmetric wave feeder, particularly suitable for processes of electrolytic colouring of aluminium, its alloys and the like
10/12/1994CN2179662Y 电子调功器 Electronic power regulator
10/12/1994CN2179661Y Capacity limit electricity saving device
10/06/1994DE4410956A1 Drosselspule für eine Schaltungsanordnung, Wechselrichter mit einer solchen Drosselspule und Verfahren zu ihrer Herstellung Choke coil for a circuit arrangement, the inverter having such a reactor and methods for their preparation
10/05/1994EP0618668A2 Power inverting apparatus
10/05/1994EP0618667A1 Method for controlling a load with A.C. voltage and device to carry out this method
10/05/1994CN2178964Y Special power for multipurpose heating apparatus
10/05/1994CN1093206A Automatic voltage adjusting and capacity controlling method for loaded power transformer
09/1994
09/29/1994DE4332899C1 Circuit arrangement for detecting the duration of current flow at converter valves
09/28/1994EP0617502A1 Method and circuit arrangement for producing a basis load in an AC circuit
09/22/1994DE4309048A1 Schaltungsanordnung eines Zweidrahtschalters Circuit arrangement of a two-wire switch
09/21/1994CN2178019Y Timing controller for regulating light and speed
09/21/1994CN1092564A AC trasforming, dc transmission transformer
09/14/1994CN2177299Y Multifunction working frequency electric heating petroleumpower source device
09/14/1994CN1092219A AC voltage-regulating device or circuit
09/13/1994US5347443 Inverter apparatus and a restarting method at an instantaneous power failure
09/07/1994EP0614052A2 Automatic ignition device
09/01/1994WO1994019862A1 Electrical damping circuit for damping power signal resonance in a power distribution network
08/1994
08/31/1994EP0613234A1 Single phase electronically commutated motor system and method
08/31/1994EP0420901B1 Procedure and apparatus for the control of electric power
08/31/1994CN2175984Y Voltage regulater capable of amplifying toggle current at same phase
08/30/1994US5343381 Electrical dampening circuit for dampening resonance of a power signal in a power distribution network
08/23/1994US5340963 Alternating current power source for welding
08/23/1994CA2115854A1 Single phase electronically commutated motor system and method
08/17/1994CN2174804Y Power phase-regulator
08/10/1994CN1090705A Circuit arrangement
08/10/1994CN1090686A AC-AC frequency changer circuit
07/1994
07/28/1994DE4327162C1 Mains reactive power compensation for inverter-fed sync machine
07/28/1994DE4306345C1 Sinusoidal current set-point modification for direct AC-AC converter
07/27/1994CN1090098A Improved plug-type electronic transformer
07/19/1994US5331537 Method of controlling electric valves of a converter
07/19/1994US5331303 Power transformer for cycloconverters
07/12/1994US5329439 Zero-voltage-switched, three-phase pulse-width-modulating switching rectifier with power factor correction