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