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 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
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)
01/1999
01/07/1999WO1999000883A2 Procedure to connect an asynchronous generator on an alternating current and an electrical connecting for use at this procedure
01/07/1999EP0889674A1 Power control unit
01/05/1999US5856920 Method and apparatus for estimating a phase error between two independent timebases
01/05/1999US5856712 Uninterruptible power supply method
12/1998
12/30/1998EP0887905A2 Procedure to connect an asynchronous generator on an alternating current and an electrical connecting for use at this procedure
12/30/1998EP0886912A1 A converter device
12/30/1998EP0886815A1 Method and apparatus for electronic power control
12/30/1998CN1203703A Apparatus and method for interline power flow control
12/29/1998US5854519 Dimmer
12/23/1998EP0886371A1 Method to control parallel connected converters to supply an asynchronous motor and corresponding circuit
12/22/1998US5852559 Power application circuits utilizing bidirectional insulated gate bipolar transistor
12/17/1998DE4345315C2 Control of frequency converter for use with induction motor
12/17/1998DE19725328A1 Electronic AC voltage stabiliser circuit
12/16/1998EP0884831A2 Method for operating a power electronic circuit
12/16/1998EP0884127A1 Method and apparatus for producing welding power
12/16/1998CN2300998Y Portable large power voltage-regulating socket
12/16/1998CN1202034A Brushless frequency converter set
12/10/1998DE19823917A1 Converter for producing multiphase AC current
12/08/1998US5847943 Method and device for controlling a four-dimensional vector for a controlled system by means of a discrete-value control element with a limited switching frequency
12/08/1998US5847555 Source voltage sensitive load controller
12/02/1998EP0881737A2 Electric charge transfer
12/02/1998CN1200846A Power converter and power converting method
11/1998
11/26/1998DE19821887A1 Converter circuit arrangement and operating procedure for multiphase induction of synchronous motors
11/25/1998CN2298617Y Ore-smelting electric furnace low-frequency power supply complete apparatus
11/25/1998CN2298616Y Automatic voltage regulation type AC. pressure regulator
11/19/1998DE19719913A1 Optimisation of shock loads on mains from pulsed power controllers working in parallel
11/17/1998US5838144 Solid state, reduced voltage motor starter enabling equalized input/output volt-amp ratings
11/11/1998EP0877471A1 A solid state, reduced voltage motor starter
11/11/1998EP0877470A2 Method and device for power control of an electric load connected to an AC supply network
11/11/1998CN1198610A Solid state motor voltage-reducing starter capable of equalizing input/output volt-ampere nominal rating
11/11/1998CN1198609A Frequency conversion power source
11/10/1998CA2164819C Soft switching circuitry
11/07/1998CA2234949A1 A solid state, reduced voltage motor starter enabling equalized input/output volt-amp ratings
11/05/1998DE19718127A1 Circuit arrangement to adjust alternating voltage applied to lamp
11/04/1998EP0875984A1 Dimmer
11/04/1998CN1197711A Amplitude-modulated series-resonant inverting arc welding power source
11/03/1998US5831349 AC two-wire switch
10/1998
10/28/1998EP0874448A1 Multilevel power converting apparatus
10/21/1998EP0777825B1 Pumping unit with very low voltage three-phase motor
10/21/1998CN1196602A Circuit for attenuating harmonic wave currents
10/13/1998US5821703 Data distribution in lighting systems
10/13/1998US5821635 Method for controlling the power supplied by an electrical circuit, in particular, a sinusoidal source
10/08/1998WO1998043848A1 Pwm converter control apparatus
10/07/1998EP0577611B1 Inductive power distribution system
10/07/1998CN2293922Y Electric current mode frequency transformer
09/1998
09/30/1998CN1194494A Constant coltage clamped forward switching voltage regulator
09/30/1998CN1194492A Parameter operation method and voltage conversion device for vector control
09/30/1998CN1194491A Method for clearing 'no-load power loss'in AC voltage-stabilizer
09/29/1998US5815384 Transformer which uses bi-directional synchronous rectification to transform the voltage of an input signal into an output signal having a different voltage and method for effectuating same
09/24/1998DE19710161A1 Circuit for continuous variation of AC or DC current in load operated from AC or DC supply or combination supply e.g for heating systems
09/23/1998EP0866284A2 Air conditioning system and power converter apparatus for the same
09/23/1998CN1193838A 电子调压电路 Electronic voltage circuit
09/23/1998CN1193715A Air conditioning system and power converter apparatus for the same
09/22/1998US5811963 Line powered DC power supply
09/16/1998EP0865150A2 Circuit for continuous direct or indirect variation of DC and/or AC current flowing in a load supplied by DC or AC source voltage or any combination of these voltages
09/16/1998EP0864193A2 Apparatus and method for interline power flow control
09/16/1998CN2291746Y Driving power supply for electromagnetic oscillation
09/15/1998US5808882 Three-phase bridge rectifier
09/15/1998US5808327 AC controller
09/09/1998EP0782785A4 Improved zero-voltage-transition (zvt) 3-phase pwm voltage link converters
09/09/1998CN2290950Y Capacitance pulsive power source
09/09/1998CN2290949Y Large power, low temp raising sine wave a. c manostat
09/09/1998CN2290929Y Watt limited socket
09/08/1998US5804999 Appliance AC power control apparatus
09/08/1998US5804953 Power converter for converting AC shore power to shipboard use
09/03/1998DE19710371C1 Circuit arrangement for charging of DC voltage intermediate circuits via rectifier e.g.for static converters
09/02/1998CN2290149Y Electronic transformer with adjustable power ad overload short-circuit protection
08/1998
08/26/1998EP0860938A1 Power controlling method for vaccum-cleaner
08/26/1998CN2289368Y Improved multiple light regulating curve generator
08/26/1998CN2289367Y Voltage-limited protector for hand-operating light modulator
08/26/1998CN2289345Y Constant power supply
08/19/1998CN2288549Y Drive for automatic voltage regulator
08/18/1998US5796599 Self-powered gate driver board
08/18/1998US5796245 Process and device for controlling the power of a load via a phase adjustment system
08/18/1998CA2077080C Ac power source for welding
08/12/1998CN1190278A High-voltage large-power frequency convertor without power network pollution
08/11/1998US5793623 Air conditioning device
08/06/1998WO1998034336A1 Driving mechanism for industrial installations, in particular for primary industry installations
08/06/1998WO1998034335A1 Control system for supply / recovery of energy from a three-phase network into a converter with a variable voltage link
08/06/1998DE19704122A1 Antriebseinrichtung für Industrieanlagen, insbesondere für Anlagen der Grundstoffindustrie Drive means for industrial plants, especially for plants in the basic industries
08/05/1998EP0856936A1 Motor controller
08/04/1998US5789894 Solid state motor speed control
07/1998
07/27/1998CA2227944A1 Power stealing solid state switch for supplying operating power to an electronic control device
07/22/1998EP0572567B1 Phase-controlled power modulation system
07/22/1998CN1188453A High voltage power converter system
07/22/1998CN1039271C High voltage electric power conversion method and apparatus thereof
07/21/1998US5784267 Quasi-sine wave and stepped square wave AC to AC converter
07/21/1998US5783876 Switch with controlled rise and fall characteristics
07/16/1998DE19734737A1 Computer controlled power output regulation
07/15/1998CN1187749A Gas discharge lamp ballast with power factor correction
07/08/1998EP0852425A1 Power converter and power converting method
07/08/1998CN1187064A Invertor power supply containing magnetic amplifier and method for controlling its output
07/07/1998CA2067800C Dc/dc power transformer
06/1998
06/24/1998EP0849655A2 Alternating current power control device
06/24/1998CN1185600A A. C. electricity control device
06/17/1998EP0847615A1 Method and device for controlling a four-dimensional vector for a controlled system by means of a discrete-value control element with a limited switching frequency
06/11/1998WO1998025334A1 Electric arc generator with inverter and three-phase supply
06/09/1998US5764503 Method and apparatus for providing conditioned AC voltage using current and voltage sensing
06/09/1998US5764501 For connecting to a power line carrying an ac signal
06/09/1998US5764499 Direct a.c. converter
1 ... 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 ... 131