Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
01/1985
01/09/1985EP0130285A1 Inverter
01/08/1985US4493016 Rectifier transformer
01/08/1985US4492975 Gate turn-off thyristor stack
01/08/1985US4492881 For operating from a d-c power source
01/08/1985CA1180755A1 Method of operating a high voltage direct current transmission system
01/02/1985EP0129909A2 Method and apparatus for controlling reverse-conducting GTO thyristor
01/01/1985US4491778 Motor variable frequency drive
12/1984
12/27/1984EP0129250A2 Converter control system
12/27/1984CA1180052A Circuit for generating a sinusoidal synchronisation voltage for firing thyristors
12/27/1984CA1180051A Multilevel pwm inverter
12/25/1984US4490780 Digital power converter
12/25/1984US4490779 Electric power system
12/25/1984US4490666 Control of induction motor using PWM inverter
12/19/1984EP0128796A1 Method of controlling the supply of electric motors, and apparatus for carrying out the method
12/19/1984EP0128492A2 Method of measuring the D.C. level of the output of an A.C.-to-D.C. power converter
12/18/1984US4489374 Rectifying apparatus for automotive A.C. generator
12/18/1984US4489371 Synthesized sine-wave static generator
12/18/1984US4489323 Control for electrical power conversion system
12/18/1984US4489261 Method and means for feeding electric energy to a portable power tool
12/11/1984US4488215 Method and apparatus for controlling the load current of a pulsed frequency converter
12/11/1984US4488214 High-power, high-frequency inverter system with combined digital and analog control
12/11/1984US4488213 Energy converter
12/11/1984US4488212 Voltage limit protection circuit for phase controlled rectifiers
12/11/1984US4488211 Harmonic and pulsation reducing circuit used in a multiplex polyphase rectifier circuit
12/11/1984US4488200 No-break power supply apparatus
12/11/1984US4488167 Current converter assembly in a flat housing
12/11/1984US4488103 Motor control method and control apparatus therefor
12/11/1984US4488101 Starting system for chopper controlled motor-commutated thyristor inverter
12/11/1984US4488100 Motor controller
12/11/1984EP0087424A4 Inverter connection with bridge for transforming direct current into single phase or multiphase alternating current.
12/05/1984EP0127187A2 Power converter
12/05/1984EP0126997A1 Electric drive
12/04/1984USRE31758 High efficiency push-pull inverters
12/04/1984US4486824 PWM Converter with control circuit responsive to minimum holding current
12/04/1984US4486821 Power source for a developing bias
12/04/1984CA1179012A1 Method and apparatus for a variable frequency inverter system having commutation fault detection and correction capabilities
11/1984
11/28/1984EP0126180A2 Circuit for reducing harmonics and pulsation in multiplex polyphase rectifying circuits or inverters, respectively provided with interphase reactors
11/28/1984EP0008296B1 Supplier of direct current with superimposed alternating current
11/27/1984US4485434 Power supply for arc lamps
11/21/1984EP0125588A1 Load voltage control for resonant inverter circuits
11/21/1984EP0125385A1 Arrangement for generating regulated and/or adjustable DC voltages or DC currents
11/21/1984EP0125278A1 Power supply having a dc imput power source and pulsed current supplying stages.
11/20/1984US4484257 In a chopper
11/20/1984US4484127 Inverter power transistor protection
11/14/1984EP0124719A1 Current-type GTO/inverter
11/13/1984US4482946 Hybrid inverter
11/13/1984US4482945 Transformer for low distortion rectifier system
11/13/1984US4482855 Current control apparatus for electric power systems
11/13/1984US4482854 Inverter circuit
11/13/1984US4482852 Motor slip controller for AC motors
11/13/1984US4482848 Controllable power source
11/13/1984US4482031 AC elevator control apparatus
11/07/1984EP0124209A1 Electronic ballast-inverter circuit
11/06/1984US4481460 Inverter with charging regulator having a variable keying ratio
11/06/1984US4481457 Method for providing adaptive control of variable speed AC motor drives
11/06/1984US4481456 Microprocessor controlled multifrequency AC converter
11/06/1984US4481447 Power supply for a magnetron
11/06/1984CA1177535A1 Selective commutation for an inverter
10/1984
10/31/1984EP0123439A1 Method for determining a surge reversevoltage across a rectifying element
10/30/1984US4480301 Method and apparatus for controlling a pulsed frequency converter
10/30/1984US4480300 For two semiconductor switches
10/30/1984US4480299 Method of controlling the output voltage of a pulse width modulation inverter
10/30/1984CA1177119A1 Automatic power reduction circuit
10/25/1984WO1984004214A1 Inverter apparatus
10/23/1984US4479175 Phase modulated switchmode power amplifier and waveform generator
10/23/1984CA1176705A1 Inductively coupled pulse feedback generator
10/23/1984CA1176704A1 High-voltage transformer
10/17/1984EP0122227A1 Supply circuit with controllable voltage
10/17/1984EP0121575A1 Controller for motor
10/16/1984US4477763 Method of controlling inverter and system therefor
10/11/1984WO1984004004A1 Electric power conversion apparatus
10/09/1984US4476521 Perin rectifier apparatus
10/09/1984US4476520 Computer-controlled synthetic waveform generator
10/09/1984CA1175902A1 Method for placing power converters into operation
10/09/1984CA1175901A1 Multi-voltage dc output with single reactor voltage control
10/09/1984CA1175900A1 Inverter with individual commutation circuit
10/02/1984US4475152 Water-cooled high voltage device
10/02/1984US4475046 Ignition equipment for light ignition thyristors
09/1984
09/27/1984WO1984003805A1 Ac voltage stabilizer easily convertible into uninterruptible power supply (ups)
09/26/1984EP0119583A1 AC current control system
09/26/1984EP0119381A1 Commutation detection scheme
09/26/1984EP0119380A1 Method for adaptive conduction control in a power converter
09/25/1984US4473757 Circuit means for converting a bipolar input to a unipolar output
09/25/1984CA1175103A1 Recovery protection device for a thyristor valve
09/19/1984EP0119134A1 Heat sink assembly device for power electronic components and application to monophase or polyphase bridges
09/19/1984EP0118966A1 AC voltage stabilizer easily convertible into uninterruptible power supply (UPS)
09/19/1984EP0118684A1 Current spreading circuit
09/13/1984WO1984003595A1 Electrical power supply for a motor vehicle
09/11/1984US4471423 Multi-voltage DC output with single reactor voltage control
09/11/1984US4471422 Dc-to-ac Inverter
09/11/1984US4471421 For controlling an electric power converter
09/11/1984US4471419 Circuitry and method of operation for an intermediate-like converter
09/11/1984US4471269 Circuit arrangement for operating a high-pressure gas discharge lamp
09/11/1984US4471196 In an induction heating system
09/11/1984CA1174390A1 Pulse width modulated voltage converter
09/11/1984CA1174175A1 Compander system circuit
09/05/1984EP0117668A1 Firing-angle control in inverters
09/05/1984EP0117558A2 Method and apparatus for controlling PWM inverter
09/05/1984EP0117526A2 Method and system for terminating inverter operation of a converting device
09/04/1984CA1173979A1 Two-wire electronic dimming ballast for fluorescent lamps