| Patents for H02P 6 - Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position; Electronic commutators therefor (19,185) |
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| 03/03/1994 | DE4228899A1 Multi-phase electric motor regulation system |
| 03/02/1994 | EP0584772A2 Drive for a stacking table of a pile lifting device for a sheet-fed painting press and method for controlling this drive |
| 03/02/1994 | CN1083279A Brushless DC motor and method for rotative driving of same |
| 03/01/1994 | US5291115 Method and apparatus for sensing the rotor position of a switched reluctance motor without a shaft position sensor |
| 03/01/1994 | US5291106 Single current regulator for controlled motoring and braking of a DC-fed electric motor |
| 03/01/1994 | US5291105 Control circuit for a half-wave brushless motor with a surge limiter |
| 03/01/1994 | US5291104 DC commutatorless motor |
| 02/22/1994 | US5289099 Direct current motor |
| 02/22/1994 | US5289089 Motor drive circuit and motor drive system using the circuit thereof |
| 02/22/1994 | US5289088 DC linear motor |
| 02/17/1994 | WO1994003779A1 Position detection apparatus |
| 02/16/1994 | CN1082266A Method and device for motor regulation |
| 02/15/1994 | US5287050 Method of synchronization for an indicating instrument with electromagnetically controlled stepping motor |
| 02/15/1994 | US5287044 Drive circuit for brushless motor |
| 02/08/1994 | US5285143 Measurement of load current in a multi-phase power amplifier |
| 02/08/1994 | US5285135 Automatic adjustment of commutation delay for brushless DC motor for improved efficiency |
| 02/02/1994 | CN1081504A A compressor Control Cprant |
| 01/26/1994 | EP0579694A1 Process and circuits for determining machine-related electromagnetic and mechanical state variables on electrodynamic induction machines supplied via converters. |
| 01/20/1994 | WO1994001925A1 Collectorless d.c. motor |
| 01/20/1994 | DE4223208A1 Bridge circuit for operation of brushless DC motor - includes potential-shifting capacitor as source of auxiliary voltage for turn-on of each MOSFET connected to positive supply |
| 01/18/1994 | US5280222 Apparatus and method for controlling brushless electric motors and position encoders and indicating position thereof |
| 01/18/1994 | US5280163 Drive circuit for resonant motors |
| 01/13/1994 | DE4222949A1 Kollektorloser Gleichstrommotor Brushless DC motor |
| 01/12/1994 | CN1080753A Driver circuit for resonant motors |
| 01/05/1994 | EP0577367A2 Slew rate circuit for high side driver for a polyphase DC motor |
| 01/05/1994 | DE4311533A1 Control circuit for commutatorless DC motor - uses two different types of coupling circuit for operating switch set connected in full-bridge configuration |
| 12/28/1993 | US5274317 Single sensor current control of a multiple phase AC machine |
| 12/28/1993 | US5274310 High-speed DC motor with added charge voltage |
| 12/23/1993 | WO1993026075A1 An electric motor and method of manufacture |
| 12/23/1993 | DE4301515A1 Electronically commutated motor with starting current limitation - supplies rectifying bridge by phasing regulator with isolating transformer and rectifier for control circuit power supply |
| 12/22/1993 | EP0574823A2 Electronic device for starting a synchronous motor with permanent-magnet rotor |
| 12/21/1993 | US5272424 Generating device of phase current instruction value for alternating current servomotor and the generating method thereof |
| 12/18/1993 | CA2097672A1 Electronic device for starting a synchronous motor with permanent-magnet rotor |
| 12/16/1993 | DE4218888A1 Commutator machine with stator poles facing magnetised rotor segments - has oppositely wound pairs of pole pieces broadened into faces aligned with radially magnetised segments of external rotor |
| 12/15/1993 | EP0574339A2 Control system for synchronous motor with magnetized rotor |
| 12/15/1993 | EP0574039A1 Brushless motor |
| 12/15/1993 | EP0574010A2 Electronically commutated motor controlled with direct-current pulses |
| 12/14/1993 | US5270631 Linear DC motor driving device |
| 12/14/1993 | US5270622 Brushless motor control system |
| 12/09/1993 | WO1993024990A1 Control method for synchronous motor |
| 12/08/1993 | EP0573198A1 Sensorless rotor position measurement in electric machines |
| 12/07/1993 | US5268627 Start assisting device for high speed reluctance motor |
| 12/07/1993 | US5268623 D.c. motor with a current-limiting arrangement |
| 12/07/1993 | US5268622 DC powered surgical handpiece having a motor control circuit |
| 12/02/1993 | DE4217265A1 Determining relative extreme values of signal for detecting shaft position of DC motor - comparing signal with maximum-minimum and minimum-minimum difference values to detect signal subject to noise pulses |
| 12/01/1993 | EP0572162A2 Sense FET and fast amplifier |
| 12/01/1993 | EP0572149A1 Multiparameter ECM and control therefore |
| 11/25/1993 | WO1993023911A1 Process and device for motor control |
| 11/24/1993 | EP0571076A1 Brushless DC motor |
| 11/23/1993 | US5264775 Pulse width modulation control apparatus and method |
| 11/23/1993 | US5264774 Motor control circuit and motor drive system using the same |
| 11/23/1993 | US5264772 Numerically controlled load actuating apparatus |
| 11/18/1993 | DE4219775A1 Control or regulation of electric motor using pulse modulation - supplying control signal of control stage to motor control circuit which essentially only amplifies this and, by amplified signal, supplies current to motor |
| 11/18/1993 | DE4215963A1 Operational amplifier referred to digitally stored average input - obtains average input from detected peak values of output of magnetoresistive potential divider and maintains when input is removed |
| 11/18/1993 | DE4215830A1 Regulating speed and/or position of electromotor(s) - using sensor to feed back speed and position information for comparison and to generate regulating signal |
| 11/18/1993 | DE4215827A1 Regulating RPM and/or position of one or more electric motors - applying signals for controlling motor pulse modulated by frequency synchronised with motor pulse frequency |
| 11/18/1993 | DE4215812A1 Regulating RPM and/or position of one or more electric motors with Hall sensor - producing signals potential or phase shifted in different ways and comparing different combinations of these shifts with each other to determine control signal |
| 11/16/1993 | US5262703 Low noise miniature electric motor |
| 11/11/1993 | WO1993022716A1 A compressor control circuit |
| 11/09/1993 | US5260645 Power supplies |
| 11/09/1993 | US5260635 Reluctance motor |
| 11/02/1993 | US5258697 Efficient permanent magnet electric motor |
| 11/02/1993 | US5258696 IC controller chip for brushless dc motors |
| 11/02/1993 | US5258695 Spin motor control system for a hard disk assembly |
| 10/28/1993 | DE4213371A1 Commutation device for permanent-magnet brushless dc motor - has four relay windings in series with diodes and rest contacts in operation of switch banks supplying paired stator coils |
| 10/26/1993 | US5256949 AC power line current regeneration |
| 10/26/1993 | US5255755 Power steering apparatus |
| 10/26/1993 | CA1323650C Electrically commutated motor having an edgewise wound yoke |
| 10/20/1993 | EP0566297A1 Brushless motor control system |
| 10/20/1993 | EP0365618B1 Electronic control circuits, electronically commutated motor systems and methods |
| 10/19/1993 | US5254918 Detection of position of rotor in brushless dc motor |
| 10/19/1993 | US5254914 Position detection for a brushless DC motor without Hall effect devices using a mutual inductance detection method |
| 10/14/1993 | DE4211982A1 DC motor with rotor position or rotational speed detector - has timed semiconductor switch in discharge path of high-pass filtering capacitor safeguarding output after switching of motor |
| 10/13/1993 | EP0565312A2 Integral motor and control |
| 10/12/1993 | US5253156 Semiconductor integrated circuit unit |
| 10/05/1993 | US5250883 Motor drive control apparatus |
| 10/05/1993 | US5250881 Hall effect motor control circuit and motor drive system using the same |
| 09/29/1993 | EP0562455A1 A stand-by circuit for controlling the supply of current to a driver circuit for a DC electric motor |
| 09/29/1993 | EP0562452A1 An interface circuit for generating an analogue signal to control the speed of rotation of a direct-current electric motor, particularly a brushless motor |
| 09/29/1993 | CN1076813A Brushless dc motor |
| 09/28/1993 | CA1322454C Air conditioner equipped with scroll type compressor |
| 09/21/1993 | US5247231 Methods of and/or apparatus for braking an electronically commutated motor and/or laundry machines incorporating the same |
| 09/15/1993 | EP0560489A1 Brushless DC motor |
| 09/15/1993 | EP0414703B1 Starting a brushless dc motor |
| 09/14/1993 | US5245256 Closed loop control of a brushless DC motor at nominal speed |
| 09/14/1993 | US5245232 Linear actuator |
| 09/09/1993 | DE4129651A1 Electromotor drive unit with electric motor control - has electric motor and control circuitry, for driving and-or controlling revolution speed and torque, as compact, integral module |
| 09/08/1993 | EP0559480A2 Motor drive having invertor |
| 09/02/1993 | WO1993017489A1 Circuit for controlling brushless motor |
| 09/01/1993 | EP0558261A1 Method and apparatus for providing the lock of a phase-locked loop system to a frequency sweep |
| 09/01/1993 | EP0558242A1 Amplifier and method for detecting the BEMF of a coil of a polyphase sensorless DC motor |
| 09/01/1993 | EP0557811A1 Digital-analog driver for brushless D.C. spindle motor |
| 08/31/1993 | US5241254 Dc feedback firing control circuit for a dc/three-phase current converter |
| 08/31/1993 | US5241247 Linear feedback control circuit for a half-wave polyphase brushless motor |
| 08/24/1993 | US5239251 Brushless doubly-fed motor control system |
| 08/24/1993 | US5239241 Controller for an electric motor that operates on direct current |
| 08/19/1993 | DE4204351A1 DC supply driving circuitry for three=phase sync. motor - feeds stator with overlapping blocks of square wave current pulses modulated by exponential wave |
| 08/19/1993 | DE4204093A1 Open or closed loop control for electric motors - provides loop control of inverter-fed induction motor and brushless DC motor with common supply |
| 08/18/1993 | EP0556117A2 Start assisting device for high speed reluctance motor |
| 08/17/1993 | US5237247 Three-phase sine wave signal synthesizing circuit and brushless motor drive circuit using the same |