Patents for H02P 5 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors (4,788) |
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02/04/1997 | US5599215 Propeller drive system |
01/28/1997 | CA2070614C Reactive power control system |
01/23/1997 | WO1997002650A1 Method and unit for controlling the synchronization of complex machines in case of electric power failure |
01/22/1997 | EP0755049A1 Integrated circuit to drive an information storage disc |
01/08/1997 | EP0752753A2 Power circuit for reluctance machines |
01/08/1997 | CN1033777C Equipment for driving two motors |
01/02/1997 | EP0692155B1 Synchronous motor system employing a non-synchronous motor for enhanced torque output |
12/27/1996 | EP0542831B1 Feeding of objects |
12/19/1996 | DE19547465C1 Static converter arrangement with coupled voltage links e.g. for traction drives |
12/12/1996 | DE19522933C1 Monitoring system for ring spinning machine with individual spindle drives |
12/11/1996 | EP0747214A2 Method and device for controlling a multiple engine drive for a printing machine |
11/28/1996 | DE19542059A1 Linear drive slide positioning drive e.g. for workpiece processing control |
11/20/1996 | EP0743383A1 Loom drive mechanism |
11/13/1996 | CN1135541A Machine for production of cotton-wadded roll by using fiber stripe |
10/29/1996 | US5569992 DC shunt (or compound) motor and its related circuit with controllable dynamic characteristics |
10/23/1996 | EP0739086A1 Method and device for driving synchronous motors |
10/22/1996 | US5568131 Motor rotation judgement circuit and apparatus using such circuit for verifying that a motor is stopped |
10/22/1996 | US5568026 Synchronizing windshield wipers |
09/25/1996 | EP0586624B1 Control system for an accumulating conveyor |
09/18/1996 | CN2235680Y Arrangement for speed regulation and control for electric bicycle |
09/17/1996 | US5557179 Control circuit for plural partially interlocked commutator type motors with oscillation damping characteristics |
09/11/1996 | EP0731544A2 Method and device for monitoring at least two parallel operating motors |
09/11/1996 | EP0521162B1 Apparatus for controlling electric car |
09/11/1996 | EP0465657B1 Electromagnetic balance type scale having rapid response characteristics |
08/28/1996 | EP0729221A1 Speed control circuit for a dental drive motor |
08/21/1996 | EP0727059A1 Drive and x-ray device comprising such a drive |
08/21/1996 | EP0669996B1 Needling machine and needling method related thereto |
08/01/1996 | DE19502909A1 Multi-motor drive for printing machine |
07/10/1996 | EP0720563A1 Ribbon sensing device for bag tyer |
07/09/1996 | US5534758 Optical disk drive circuit and optical disk drive device using the same |
06/26/1996 | EP0718422A1 Machine for producing lap windings from fiber ribbons |
06/25/1996 | US5530323 Drive synchronization system for plural motor systems |
06/25/1996 | CA2026096C Induction motor switchable between series delta and parallel wye |
06/25/1996 | CA2026095C Y-delta conversion switches on dual stator induction motor |
06/19/1996 | EP0717488A2 Neutral connection for wire wound stator |
06/19/1996 | EP0717331A1 Tandem control method using digital servo |
06/18/1996 | US5528114 Apparatus for driving two motors |
05/28/1996 | US5521470 Plural commutator type motors with common parallel driving circuit |
05/15/1996 | EP0711608A1 Screw decanter centrifuge |
05/14/1996 | US5517091 Modular electrical system for device units |
05/01/1996 | EP0604510B1 Recorder with drive phase detector |
04/24/1996 | EP0458974B1 Inverter-controlled apparatus for carrying and measuring articles |
04/23/1996 | CA1338272C Window operator control |
04/16/1996 | US5508571 Stator assembly for a dynamoelectric machine |
04/03/1996 | EP0704962A1 Regulation of the relative synchronisation of mechanically coupled axes of machine tools |
03/28/1996 | DE4433581A1 Multi-drive system for mining and tunnelling conveyors |
03/26/1996 | US5502544 Parameter based digital servo controller |
03/20/1996 | EP0701662A1 Positive displacement machine with electronic motor synchronisation |
03/20/1996 | CN1118951A Inverter apparatus |
03/14/1996 | WO1996008075A1 Control for mechanically coupled driving and driven spindles in machine tools or the like |
03/07/1996 | WO1996007128A1 Drive and x-ray device comprising such a drive |
02/28/1996 | EP0698769A1 Control method and apparatus for controlling the motors of an air conditioner |
02/28/1996 | EP0698572A1 Method for the control of web velocities in a device for the transport or the drawing of a web material |
02/13/1996 | US5491831 Cellular motor control network |
02/07/1996 | CN1116373A Control system for a machine drive |
02/07/1996 | CN1116291A Control method and apparatus for controlling motors of air conditioner |
02/06/1996 | US5490056 Inverter apparatus having two control modes and apparatus using the same |
02/01/1996 | WO1996002443A1 Overload detector for servo driven machines |
02/01/1996 | CA2193987A1 Overload detector for servo driven machines |
01/24/1996 | EP0693822A1 Controller for electric motors |
01/24/1996 | EP0693374A1 Electric driving device, particularly for printing machines |
01/17/1996 | EP0692155A1 Synchronous motor system employing a non-synchronous motor for enhanced torque output |
01/11/1996 | WO1996000934A1 Tandem control method using digital servo |
01/10/1996 | EP0401375B1 Method of controlling synchronized operation of a machine tool |
01/09/1996 | US5483134 Ribbon sensing device for bag tyer |
01/03/1996 | CN2216722Y Controller for electromagnetic regulating speed motor |
01/02/1996 | CA2060472C System for motor load equalization |
12/20/1995 | EP0687395A1 Process for preventing damage to numerically controlled machines in the event of a power failure |
12/12/1995 | US5475292 Apparatus for restarting inverter for driving synchronous motor after momentary interruption |
12/06/1995 | EP0526548B1 Plural motor fan system with improved speed control |
12/06/1995 | CN1030487C 感应电动机 Induction motor |
11/29/1995 | EP0684534A1 Adaptive control systems |
11/22/1995 | CN1112309A DC motor with rotating sensor |
11/15/1995 | EP0682402A1 Output magnitudes rise limiting device for self-commutated constant voltage intermediate circuit converter |
11/15/1995 | EP0682401A1 Limiting device for the output voltage slope of a self-commutated converter |
10/31/1995 | US5463556 Process and device for control of an autoleveling draw frame |
10/18/1995 | EP0495987B1 Method and apparatus for controlling synchronized phases in system for driving printing rolls for corrugated board printing machine |
10/11/1995 | EP0676095A1 POWER SUPPLY SYSTEM FOR n ASYNCHRONOUS MOTORS |
10/11/1995 | EP0675822A1 Propeller drive system |
10/11/1995 | CN1030024C Induetion motor |
10/03/1995 | US5455496 Head-retract circuit for moving media storage apparatus |
09/26/1995 | US5452626 Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame |
09/21/1995 | DE4422086C1 Electric food processor with interchangeable tools |
09/19/1995 | US5451846 Low current compensation control for thyristor armature power supply |
09/06/1995 | EP0669996A1 Needling machine and needling method related thereto. |
08/30/1995 | CN1107562A Control device for air conditioner |
08/08/1995 | US5439184 Precision winding method and apparatus |
07/26/1995 | EP0664598A2 Power supply system |
07/26/1995 | CN1105787A Linear motor and its electrical control system for magnetic field scanning physiotherapy machine |
07/26/1995 | CN1105706A Method and equipment for a.c. motor driving oscillating aging treating parts |
07/18/1995 | US5434486 Synchronous operation system |
07/12/1995 | CN1104974A An electric powered bicycle |
07/11/1995 | US5432418 Motor system for an electric type vehicle |
07/04/1995 | US5430361 Integrated anti-backlash gearhead motor |
06/20/1995 | US5426353 Synchronous motor system employing a non-synchronous motor for enhanced torque output |
06/14/1995 | EP0657988A2 Multiple pulse width modulation circuit |
06/13/1995 | US5424763 Color misregistration-free color image forming apparatus |
06/10/1995 | CA2137509A1 Multiple pulse width modulation circuit |
06/06/1995 | US5422550 Control of multiple motors, including motorized pumping system and method |
05/31/1995 | CN1103228A Cellular motor control network |