| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 09/13/1983 | US4404511 Motor power factor controller with a reduced voltage starter |
| 09/07/1983 | EP0087429A1 Marine drive system |
| 09/07/1983 | EP0087415A1 Electric power converter circuit |
| 08/31/1983 | EP0087115A1 Power and control apparatus of a synchronous machine running variable speed |
| 08/30/1983 | US4401934 Adaptive control system for line-commutated inverters |
| 08/24/1983 | EP0086650A2 Apparatus for providing a controlled power waveform |
| 08/23/1983 | US4400656 Lifting device for driving a load |
| 08/23/1983 | US4400655 Self generative variable speed induction motor drive |
| 08/17/1983 | EP0085871A1 Method for increasing the maximum speed of a synchronous motor with a given exciting field power and terminal voltage and apparatus therefor |
| 08/16/1983 | US4399395 Line-to-line voltage reconstruction for synchronizing thyristor power converter |
| 08/10/1983 | EP0085541A1 Synchronous motor drive apparatus |
| 08/10/1983 | EP0085338A1 Device for determining the common frequency of two independently variable alternating values, in particular in a rotating field machine |
| 08/10/1983 | EP0085285A1 Compressor drive system |
| 08/10/1983 | EP0085203A1 Couple stabilisation device of an electrical motor with electronical commutation |
| 08/09/1983 | CA1151724A1 Load state control for an asynchronous machine fed by a converter |
| 07/27/1983 | EP0084367A2 Method and apparatus for controlling an AC motor |
| 07/20/1983 | EP0083945A2 Method and apparatus of controlling induction motors |
| 07/06/1983 | EP0083326A1 Method and device for controlling a brushless alternating current motor |
| 07/06/1983 | EP0083012A1 Method and system for controlling output voltage of pulse width modulation inverter |
| 07/05/1983 | CA1149456A1 Frequency multiplication |
| 06/29/1983 | EP0082828A1 Washing machine |
| 06/29/1983 | EP0082303A1 Method and apparatus for controlling induction motor |
| 06/22/1983 | EP0082029A1 Device for the correction of the alternating voltage supplied by a frequency converter feeding an asynchronous or synchronous motor |
| 06/22/1983 | EP0081723A1 Device for the control of the output voltage of a polyphase cycloconverter |
| 06/21/1983 | US4389607 Synchronous motor control device |
| 06/14/1983 | US4388578 Power factor controller |
| 06/14/1983 | US4388577 Rotating field machine drive |
| 06/08/1983 | EP0080788A1 Pulsed thyristor trigger control circuit |
| 06/07/1983 | US4387421 Optimal and adaptive control of variable speed AC motor drives |
| 06/07/1983 | US4387326 Variable reluctance motor systems |
| 05/24/1983 | CA1147020A1 Apparatus and method for generating waveforms which are particularly suitable for a pwm-driven motor |
| 05/24/1983 | CA1147017A1 Reluctance motors 4-phase converter |
| 05/18/1983 | EP0079169A1 A power controller |
| 05/17/1983 | US4384244 Torque control systems of induction motors |
| 05/17/1983 | US4384243 Energy saving motor controller |
| 05/17/1983 | US4384242 Speed control systems of synchronous motors |
| 05/11/1983 | EP0078698A1 AC motor control method and arrangement |
| 05/04/1983 | EP0077836A1 Control apparatus for electric motors |
| 05/03/1983 | US4382223 Voltage and frequency-controlled AC wave modifier |
| 04/28/1983 | WO1983001542A1 An arrangement for driving pumps and like loads |
| 04/26/1983 | CA1145393A1 Power factor control system for inverter-driven a-c induction motor |
| 04/26/1983 | CA1145390A1 Zero rotation and zero torque detector and method for an ac electric motor drive |
| 04/26/1983 | CA1145123A1 Pipe repair methods and apparatus using an electromagnetically exploded filament |
| 04/20/1983 | EP0077118A1 Motor power factor controller with a reduced voltage starter |
| 04/06/1983 | EP0075794A1 Method of simulating a flux signal for an induction machine and circuit arrangement for carrying out this method |
| 04/05/1983 | US4379325 System for bridging brief network failures |
| 04/05/1983 | US4379258 Power control circuit for induction motor |
| 03/30/1983 | EP0075357A1 Feeder circuit for a polyphase electric asynchronous machine |
| 03/22/1983 | US4377779 Pulse width modulated inverter machine drive |
| 03/17/1983 | WO1983000962A1 Electric power converter circuit |
| 03/17/1983 | WO1983000957A1 Electric power converter circuit |
| 03/17/1983 | WO1983000851A1 Marine drive system |
| 03/16/1983 | EP0074239A1 Electric power converter circuit |
| 03/16/1983 | EP0073846A1 Speed controlling device of a three-phase ventilator motor for air conditioning equipment |
| 03/16/1983 | EP0073839A1 Control device for synchronous motor |
| 03/09/1983 | EP0073504A1 Control systems for AC induction motors |
| 03/03/1983 | WO1983000708A1 Device for driving sewing machine |
| 03/02/1983 | EP0073045A2 Method of controlling an induction motor by a PWM inverter |
| 03/02/1983 | EP0072788A1 Method and apparatus for controlling an ac induction motor |
| 02/16/1983 | EP0071847A2 Method and apparatus for determining the time constant of the rotor of a field orientated induction machine |
| 02/01/1983 | US4371824 Base drive and overlap protection circuit |
| 01/25/1983 | CA1140236A1 Control system for regulating large capacity rotating machinery |
| 01/12/1983 | EP0069469A1 Apparatus for speed detection |
| 01/11/1983 | CA1139361A1 Control system for polyphase loads |
| 01/05/1983 | EP0068394A1 Device for determining the operating value of a load, especially the flux of a rotating field machine, from the integral of the load voltage and, optionally, the load current |
| 01/04/1983 | US4367521 PWM Inverter device |
| 01/04/1983 | US4367520 Method and apparatus for controlling pulse width modulation inverter circuit |
| 01/04/1983 | CA1138965A1 Motor speed control |
| 12/29/1982 | EP0067886A1 Induction motor drive system |
| 12/28/1982 | US4366533 PWM Inverter device |
| 12/28/1982 | US4366429 Variable speed controller with improved efficiency of energy transfer for an AC induction motor |
| 12/28/1982 | US4366428 Asynchronous motor drive |
| 12/28/1982 | US4366427 Protective method and apparatus for a controlled current inverter and motor control system |
| 12/22/1982 | EP0067717A1 Induction motor control system |
| 12/22/1982 | EP0067716A1 Induction motor control system |
| 12/21/1982 | CA1138041A1 Converter apparatus |
| 12/21/1982 | CA1138037A1 Rectifier-type ac motor speed control |
| 12/14/1982 | US4364109 Control device of inverters |
| 12/14/1982 | CA1137548A1 Excitation commanding for current fed motor drives |
| 12/08/1982 | EP0066191A1 Control device of a static AC-AC converter with thyristors to supply variable frequency current to a synchronous rotating machine |
| 11/30/1982 | US4361794 Induction motor drive apparatus |
| 11/30/1982 | US4361793 Motor voltage controller device |
| 11/30/1982 | US4361791 Apparatus for controlling a PWM inverter-permanent magnet synchronous motor drive |
| 11/24/1982 | EP0065245A1 Variable speed induction motor drive |
| 11/23/1982 | US4360770 Variable reluctance motor systems |
| 11/17/1982 | EP0064856A2 A multi-phase bridge arrangement |
| 11/17/1982 | EP0064622A1 Circuit for forming the phase position of a stator voltage vector or of a stator current vector of an asynchronous machine fed by a converter |
| 11/11/1982 | WO1982003953A1 Method of controlling an electric motor and control unit therefor |
| 10/19/1982 | CA1134031A1 Slow speed tape recorder |
| 10/06/1982 | EP0061604A1 Device for controlling the rotation and/or torque of an asynchronous machine by means of a current intermediate circuit converter |
| 10/06/1982 | EP0061603A2 Method and device for measuring the angle between the flux vector in the air gap and the vector of the stator current of an asynchronous machine fed by a current indirect converter |
| 09/30/1982 | WO1982003301A1 Control system for synchronous motor and device therefor |
| 09/21/1982 | US4350944 Variable control circuit having a timed bypass |
| 09/21/1982 | CA1132186A1 Slip frequency control for variable speed induction motors |
| 09/15/1982 | EP0059924A1 Control apparatus for electric cars propelled by induction motor |
| 09/14/1982 | US4349772 Method and apparatus for controlling an alternating current motor load using plural controlled-current inverter circuits |
| 08/24/1982 | US4346434 Apparatus for controlling an electric motor |
| 08/10/1982 | US4344026 Static Scherbius system |
| 08/10/1982 | US4344025 Motor control system |
| 08/04/1982 | EP0056954A2 Electric control for yarn feeding devices |