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 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
11/1991
11/26/1991US5068777 Pulse width modulation type inverter having temperature compensation
11/26/1991US5068774 24-pulse hexagon-type AC/DC static converter
11/26/1991US5068571 Switched bridge circuit
11/26/1991CA2043043A1 Spraying voltage control with hall effect switches and magnet
11/26/1991CA1292511C Method and compensating device for compensating current oscillations
11/23/1991WO1991018441A1 A power supply
11/23/1991CA2063561A1 Power supply
11/21/1991EP0456854A1 Method and apparatus for the control of a three phase pulse inverter
11/21/1991DE4015672A1 Cable connected remote DC supply for intermediate repeaters
11/13/1991CN2088734U Springboard type energy-saving switch
11/12/1991US5065304 Controller for AC power converter
11/12/1991US5065303 Transformer-coupled and phase-shifted inverter
11/12/1991US5065302 Adjustable ac power supply equipment for air-conditioner system
11/10/1991CA2036296A1 Uninterruptible power supply with dual level voltage input
11/07/1991DE4027969C1 Converter with controlled transistor bridge - has connecting choke divided into main and auxiliary chokes in diagonal branch of bridge
11/06/1991EP0455322A1 Semiconductor device
11/06/1991EP0455181A2 Procedure for regulating the D.C. voltage of a rectifier
11/06/1991EP0455120A2 Power converter assembly with intermediate DC circuit and converter modules
11/06/1991CN2088305U Safety universal power supply
11/06/1991CN1014594B Train steady inverter
11/05/1991US5063532 Active filter device
11/05/1991US5063488 Switching power source means
11/05/1991US5063331 High frequency oscillator-inverter circuit for discharge lamps
11/04/1991CA2039792A1 Soft-switching power converter for operation in discrete pulse modulation and pulse width modulation modes
10/1991
10/31/1991DE4013506A1 DC-operated drive system - has voltage converter between DC source and DC-AC converter supplying motor
10/30/1991EP0454597A1 Pulse gate control circuit with short-circuit protection
10/29/1991CA1291529C Regulating system for a switch generator-inverter feeding a load by induction
10/29/1991CA1291528C Procedure for the conversion of electrical energy from direct into alternating
10/28/1991WO1991017600A1 PROCESS AND CIRCUIT FOR OPERATING AN INVERTER WITH n PARALLEL SERVO COMPONENTS
10/28/1991CA2081338A1 Process and circuit for operating an inverter with n parallel servo components
10/23/1991EP0267252B1 Frequency converter for the stabilized supply of asynchronous motors
10/22/1991US5060129 Method of controlling three-phase, three-level inverter
10/22/1991US5060128 Flyback power supply
10/17/1991DE4011742A1 Push pull AC inverter circuit - has alternating transistors with base drive current ratio set by capacitive divider
10/16/1991EP0451440A2 Method of controlling three-phase, three-level inverter
10/15/1991US5057991 Structure of bridge rectifier
10/15/1991US5057990 Bidirectional switching power apparatus with AC or DC output
10/15/1991US5057989 Pwm controlled dc/ac power converter
10/15/1991US5057988 Modular power supply
10/15/1991US5057808 Transformer with voltage balancing tertiary winding
10/09/1991EP0450999A1 Electric power supply device with energy reserve, in particular for a microwave tube
10/09/1991EP0450832A1 A thyristor stack
10/09/1991EP0450306A1 High-speed diode and method for producing the same
10/09/1991CN1014286B Improved power supply for totem pole power switches
10/08/1991US5055994 A.c. to d.c. converter
10/08/1991US5055993 Invertor apparatus
10/08/1991US5055992 Control for full-bridge inverter
10/08/1991US5055990 Snubber circuit for power conversion semiconductor elements and assembly thereof
10/08/1991US5055989 Three phase to single phase converter
10/08/1991US5055762 Current controlled full wave transitor bridge inverter for a multiple phase AC machine
10/08/1991CA1290391C Integrated current sensor torque control for ac motor drives
10/08/1991CA1290390C Integrated current sensor configurations for ac motor drives
10/02/1991EP0449640A1 Method for mounting electrical components.
10/02/1991EP0449495A2 Electrical power supply
10/02/1991EP0449224A1 Apparatus for operating discharge lamp
10/02/1991EP0448908A1 Method for generating a stable DC voltage and stabilized DC voltage source
10/01/1991US5053940 Extinction blocking for GTOs
10/01/1991US5053939 Control of PWM inverters by pattern development from stored constants relating D.C. link harmonics to output distortion
10/01/1991US5053690 Control method of pulse width modulation inverter and pulse width modulation inverter system
10/01/1991US5053688 Feedback circuit for eliminating DC offset in drive current of an AC motor
09/1991
09/26/1991DE4008904A1 Network supply circuit for LV load resistances - uses trial controlled by ignition circuit with schmitt trigger
09/25/1991EP0448434A1 Rectifier for at least two AC-voltage supply ranges
09/25/1991EP0448165A2 Series resonant inverter, especially for an X-ray generator
09/25/1991CN1054862A Energy-saving device for single-phase electric devices
09/24/1991US5051883 Method and an apparatus for full wave rectification of a three-phase signal operating in a wye configuration
09/24/1991US5051880 Mixed mode regulation controller for a resonant power converter
09/24/1991US5051660 Circuit arrangement for operating a gas discharge lamp on a direct-current source
09/19/1991DE4008419A1 Rectifier cubicle with liq.-cooled rectifier modules - has horizontal guide and coupling rail profiles for modules on rollers
09/18/1991EP0446836A1 Current rectifier module
09/17/1991US5050058 Family of power converters using rectifier transformers connected in series on the primary side
09/17/1991US5050057 Power source apparatus
09/17/1991US5049788 Lighting device of fluorescent lamp
09/17/1991US5049787 Controlled electronic ballast
09/11/1991EP0446048A2 Power converter protection device
09/11/1991EP0445501A1 Variable high voltage generator
09/11/1991EP0314681B1 Final stage of a bridge circuit
09/10/1991US5047914 Current controlled inverter
09/10/1991US5047913 Method for controlling a power converter using an auxiliary resonant commutation circuit
09/10/1991US5047912 Four-terminal unity power factor electronic rectifier
09/10/1991US5047910 Ideal sinusoidal voltage waveform synthesis control system
09/10/1991US5047690 Inverter power supply and ballast circuit
09/05/1991DE4105868A1 Regulating AC motor for balanced interphase currents - using two parallel supplies with coupled current feedback
09/04/1991EP0444792A2 Automat supply voltage switching circuit
09/04/1991EP0444428A2 PWM-controlled power supply including choke coil with 3 windings
09/04/1991EP0444404A2 High voltage bridge interface for AC and brushless DC motor control
09/04/1991EP0183850B1 High-tension thyristor converter
09/04/1991CN2084252U Field effect power tube type high voltage dc-to ac converting power supper for mine
09/03/1991US5045991 Unity power factor AC/DC converter
09/03/1991US5045990 Sixteen level power supply with asynchronous controller
09/03/1991US5045989 PWM power supply eliminating modulation-frequency components from ground potentials
09/03/1991US5045988 Isolated adjustable frequency AC inverter control
09/03/1991US5045924 Mounting structure of semiconductor converter
09/03/1991US5045658 Magnetron with temperature probe isolation
09/03/1991CA1288467C Load commutated inverter and synchronous motor drive embodying the same
08/1991
08/28/1991EP0443585A2 Apparatus and process for controlling an inverter operation
08/28/1991EP0443378A2 Electronic power switch
08/27/1991US5043859 Half bridge device package, packaged devices and circuits
08/27/1991US5043857 Real-time control of PWM inverters by pattern development from stored constants
08/27/1991US5043797 Cooling header connection for a thyristor stack
08/27/1991CA1288133C Method and apparatus for directing power between three-phase mains and a d.c. circuit
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