Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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10/06/1998 | US5818180 Method for positioning the heads in a disk drive |
10/06/1998 | US5818178 Valve control apparatus for an automobile |
09/29/1998 | US5814962 Servo controller |
09/24/1998 | DE19711463A1 Arrangement for automatic control of DC machine, e.g for vehicle testing |
09/23/1998 | EP0865681A1 Process for controlling a physical quantity, and arrangement for carrying out said process |
09/23/1998 | CN1193842A Current sensing circuit for pulse width modulated motor drive |
09/23/1998 | CN1193837A Direct current motor with imbalanced winding for closed-loop feedback control |
09/22/1998 | US5811948 Control apparatus for electric motor |
09/22/1998 | US5811946 System and method for velocity control of a D.C. Motor |
09/17/1998 | WO1998040945A1 Method for electronic control and adjustment of the movement of electrically actuated units |
09/16/1998 | EP0865153A1 Variable load inductance compensation for motor drive circuits |
09/15/1998 | US5808429 Method of and apparatus for controlling motor |
09/03/1998 | WO1998038728A1 Motor reversing circuit |
09/02/1998 | EP0861518A1 Programmable dual-phase digital motor control with sliding proportionality |
09/02/1998 | CN1192081A Improved motor control circuitry and circuitry enclosure |
09/01/1998 | US5801504 Control apparatus for electric power steering system |
08/27/1998 | WO1998037493A1 A microprocessor-controlled drive unit for electrically operated devices |
08/27/1998 | DE19729238C1 Speed determining method for mechanically commutated DC motors |
08/25/1998 | US5798625 DC motor and controlling system therefor |
08/25/1998 | US5798624 Motor circuit |
08/25/1998 | US5798573 Split power supply |
08/18/1998 | US5796237 Efficiency control system for an induction motor |
08/18/1998 | US5796235 Process and circuits for determining machine-related electro-magnetic and mechanical state variables on electrodynamic induction machines supplied via converters |
08/13/1998 | WO1998026643A3 Procedure and apparatus for the damping of motor vibrations |
08/12/1998 | EP0702854B1 Head rail-mounted mini-blind actuator |
08/12/1998 | CN2287761Y DC motor control cabinet for cold rolling steel plate bending machine |
08/11/1998 | US5793175 Performance event sensing for control of electric motor driven golf car |
08/11/1998 | US5793171 Control circuit for controlling the driving of a DC motor for a mirror assembly of a vehicle |
08/11/1998 | CA2113440C Variable speed latching motor control |
08/06/1998 | DE19704089A1 Method of controlling chopper-driver formed by bridge circuit e.g for stepper motor in control electronics |
08/05/1998 | EP0856938A2 Direct current motor with imbalanced winding for closed-loop feedback control |
08/04/1998 | US5789896 Apparatus and method for controlling an electric motor having an armature and a series-wound, series-connected field coil that can be separately controlled during regenerative braking |
07/30/1998 | WO1998023026A3 Motor control device and apparatus for the recording and/or reproduction of information including the motor control device |
07/29/1998 | EP0855799A2 Control device |
07/29/1998 | EP0855790A2 An AC-DC converter for low power electronic switching motors fed by a power grid |
07/28/1998 | US5787376 Power steering motor control unit with driving mode correction |
07/28/1998 | US5786679 DC motor driven power steering system for a motor vehicle |
07/21/1998 | US5784270 Method of controlling an H-bridge |
07/21/1998 | US5783924 Drive system comprising a motor, control means for controlling the motor, apparatus comprising the drive system, and method of controlling the motor |
07/15/1998 | CN1187712A Ultrasonic motor driving controller |
07/09/1998 | WO1998029939A1 Adjustable speed control for children's ride-on vehicle |
07/08/1998 | EP0852084A1 Switching circuit with lockout feature |
07/08/1998 | EP0649575B1 Electric motor drive |
07/01/1998 | EP0851329A2 Integrated circuit for control device |
07/01/1998 | EP0850817A2 Load short-circuit failure detection method and apparatus and electric power steering device |
07/01/1998 | EP0850508A1 Control system for separately excited dc motor |
07/01/1998 | CN1186380A Apparatus for controlling driving signal for motor |
06/30/1998 | US5774626 Programmable dual-phase digital motor control with sliding proportionality |
06/30/1998 | US5773991 Motor current sense circuit using H bridge circuits |
06/25/1998 | WO1998026643A2 Procedure and apparatus for the damping of motor vibrations |
06/25/1998 | WO1998019388A3 Speed control for the fan motor of a hot-air appliance |
06/24/1998 | EP0849753A2 Switched output stage for controlling or regulating inductive loads |
06/24/1998 | CN2285031Y Chopper speed regulator for dc motor |
06/23/1998 | US5771166 Asymmetrical bridge inverter circuit for driving a switched reluctance motor |
06/18/1998 | WO1998019387A3 Low-voltage generation in mains-powered hot-air appliances having a fan motor |
06/16/1998 | US5767654 Apparatus and method for detecting motor position in PWM operation of a polyphase DC motor |
06/16/1998 | US5767653 Variable speed AC induction motor controller |
06/10/1998 | EP0782787B1 Process and circuit for controlling fans |
06/10/1998 | DE19716349C1 Loom leno selvedge unit drive |
06/09/1998 | US5764010 Control system for an automotive vehicle multi-functional apparatus |
06/09/1998 | US5764009 Motor control device in electric motor-operated vehicle |
06/09/1998 | US5764006 Motor driving circuit and method for driving two motors |
06/04/1998 | WO1998023967A1 Method for the continuous detection of a rotational speed of electric motors and a system for carrying out this method |
06/02/1998 | US5760555 Motor drive unit used for camera and accessory thereof |
05/28/1998 | WO1998023026A2 Motor control device and apparatus for the recording and/or reproduction of information including the motor control device |
05/28/1998 | DE19648402A1 Verfahren zur kontinuierlichen Erfassung einer Drehzahl von Elektromotoren sowie eine Anordnung zur Durchführung des Verfahrens A process for continuously detecting a rotational speed of electric motors as well as an arrangement for carrying out the method |
05/27/1998 | EP0844730A2 Electromechanical actuator |
05/27/1998 | EP0844720A2 Method and device for current monitoring of semiconductor circuits |
05/27/1998 | CN1183081A Control system for an automotive vehicle multi-functional apparatus |
05/26/1998 | USRE35806 Multipurpose, internally configurable integrated circuit for driving a switching mode external inductive loads according to a selectable connection scheme |
05/26/1998 | US5757211 IC precision resistor ratio matching with different tub bias voltages |
05/20/1998 | EP0843406A2 Three-speed dual-winding direct current permanent magnet motor method and apparatus |
05/20/1998 | EP0842572A1 Noise suppression in pwm-driven dc motor |
05/20/1998 | EP0716781B1 Device for operating a power consumer in a vehicle |
05/20/1998 | EP0653834B1 Power window driving controller |
05/20/1998 | CN1182391A Multi-functional apparatus employing an intermittent motion mechanism |
05/14/1998 | DE19643942A1 Connection arrangement for roller-blind motor |
05/13/1998 | EP0841230A1 Multi-functional apparatus employing an intermittent motion mechanism |
05/13/1998 | CN1181657A Speed control apparatus for switched reluctance motor |
05/07/1998 | WO1998019388A2 Speed control for the fan motor of a hot-air appliance |
05/07/1998 | WO1998019387A2 Low-voltage generation in mains-powered hot-air appliances having a fan motor |
05/06/1998 | EP0840440A2 Control circuit |
05/06/1998 | EP0840438A2 Switched reluctance motor driving circuit |
05/05/1998 | US5747953 Cordless, battery operated surical tool |
04/29/1998 | EP0838035A1 Process and circuit arrangement for determining the speed of a d.c. motor |
04/28/1998 | US5744890 Brush structure for motor in which wear-related parameters of the brushes are varied to equalize brush wear |
04/21/1998 | US5742142 Low radiated emission motor speed control with PWM regulator |
04/21/1998 | CA2105632C Speed and mode control for a blender or the like |
04/16/1998 | DE19640190A1 Elektrische Schaltung zur Ermittlung eines Laststroms An electrical circuit for detecting a load current |
04/15/1998 | CN2279034Y Mine heat sink insulation water-cooled controlled silicon module |
04/14/1998 | US5740040 Electric power steering apparatus with enhanced road feel |
04/09/1998 | WO1998014788A1 Electrical circuit to detect load current |
04/08/1998 | CN1178611A Circuit for driving an electric motor |
04/07/1998 | US5736826 Dual hysteresis control circuit |
04/02/1998 | DE19705134A1 Computer system processor cooling fan control method |
04/01/1998 | EP0833439A1 Synchronous driving method for inductive load and synchronous controller for h-bridge circuit |
04/01/1998 | EP0833437A2 Semiconductor driver commutation element to control electric loads |
04/01/1998 | EP0832513A1 Soft switching, pwm controller and method for reducing torque ripple in multiphase dc motor |
03/31/1998 | US5734240 Bidirectional DC motor |
03/25/1998 | EP0831579A1 Trim circuitry and method for accuracy improvement in current sensing |