| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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| 03/25/1998 | EP0831578A2 Current feedback for polyphase DC motors |
| 03/24/1998 | US5731673 Electrical power tool having a motor control circuit for increasing the effective torque output of the power tool |
| 03/24/1998 | US5731672 Control apparatus of DC servo motor |
| 03/24/1998 | US5731671 Method and circuit arrangement for controlling fans |
| 03/18/1998 | EP0716782B1 Variable speed motor controller |
| 03/17/1998 | US5729652 System for controlling the speed of a motor driven by an unregulated voltage |
| 03/14/1998 | CA2185474A1 Top speed adjustment system for a dc series field motor |
| 03/12/1998 | DE19626965A1 Torque calculator for direct-current (DC) machines |
| 03/10/1998 | US5726958 Spindle motor gain control method for CD-ROM drives and apparatus therefor |
| 03/05/1998 | DE19634183A1 Motor vehicle electronics e.g. for control of electric motor drive unit |
| 03/04/1998 | EP0827266A2 High-side type motor current detecting circuit |
| 03/04/1998 | CN1175120A Circuit distribution for controlling bidirectiona dc motor |
| 03/03/1998 | US5724477 Compensation for input voltage variation in an electric motor drive |
| 03/03/1998 | US5723958 Arrangement for operating a consumer in a motor vehicle |
| 02/25/1998 | EP0824426A1 Control system for an automotive vehicle multi-functional apparatus |
| 02/25/1998 | EP0824423A1 Multi-functional apparatus employing an intermittent motion mechanism |
| 02/24/1998 | US5721474 Method and apparatus for preventing excessive current flow in a motor |
| 02/19/1998 | WO1998006296A1 Electrical circuit for supplying power |
| 02/17/1998 | US5719759 DC/AC converter with equally loaded switches |
| 02/12/1998 | DE19632029A1 Elektrische Schaltung für die Stromversorgung An electrical circuit for the power supply |
| 02/11/1998 | EP0823775A2 Low radiated emission motor speed control with pwm regulator |
| 02/11/1998 | EP0822761A1 Device for fitting rivets or control therefor |
| 02/11/1998 | CN2274390Y Electricity-saved cooling device |
| 02/04/1998 | EP0822652A1 Control circuit for driving a DC motor in two directions |
| 01/29/1998 | DE19630036A1 Semiconductor control switch e.g. for electric load such as motor vehicle DC fan-motor speed control |
| 01/28/1998 | CN1171648A Switch governor motor |
| 01/27/1998 | US5712550 Apparatus for controlling a power control element of a drive unit of a motor vehicle |
| 01/27/1998 | US5712548 Bi-directional motor actuator |
| 01/20/1998 | US5710499 Stepper motor control circuit and method |
| 01/20/1998 | US5710495 Apparatus and method for measuring average motor current |
| 01/15/1998 | WO1998001941A1 Control system for separately excited dc motor |
| 01/14/1998 | CN1037055C Microcomputerized PWM speed regulator for DC elevator |
| 01/14/1998 | CN1037054C Servo motor |
| 01/13/1998 | US5708572 Switched-mode power supply |
| 01/13/1998 | US5708343 Control device for direct current electric motor |
| 01/08/1998 | DE19626731A1 Handwork tool, especially electric screwdriver |
| 01/07/1998 | EP0815639A1 Circuit for driving an electric motor |
| 01/07/1998 | EP0815631A1 Method for monitoring and controlling the opening and closing process of electrically powered units |
| 01/07/1998 | EP0815557A1 Drive system comprising a motor, control means and method for controlling the motor, apparatus for information storage and/or reproduction comprising the drive system |
| 01/07/1998 | CN2272168Y Storage battery car speed regulator |
| 01/06/1998 | US5706265 Spindle motor driving control circuit of disk drive recording device |
| 01/06/1998 | US5705907 Drive control system for servo motor |
| 01/06/1998 | US5705755 Device for detecting position and load of a moving object |
| 12/30/1997 | US5703448 Shunt-type speed control circuit having transient storage effect for a series or compound motor |
| 12/30/1997 | US5703447 Battery voltage controller for DC motor |
| 12/24/1997 | CN1168567A DC motor control circuit |
| 12/24/1997 | CN1168566A DC motor control circuit |
| 12/17/1997 | EP0812753A2 Method and apparatus for detecting the angle of rotation and load torque of a DC motor |
| 12/17/1997 | CN1036748C Motor control arrangement, and shaver comprising such motor control arrangement |
| 12/11/1997 | DE19621500A1 Electric load controller, particularly vehicle motor |
| 12/09/1997 | US5696871 DC motor control circuit |
| 12/02/1997 | US5694020 Battery powered electrical shaver or hair cutter |
| 11/20/1997 | DE19639252C1 Freely-configured semiconductor driver integrated circuit for control of e.g. motor |
| 11/19/1997 | EP0808018A1 Electrical power tool having a motor control circuit for providing improved control over the torque output of the power tool |
| 11/19/1997 | EP0808010A2 System and method for protecting a single phase motor from circulating currents |
| 11/18/1997 | US5689167 Two-phase electronic control of a three-phase induction motor |
| 11/18/1997 | US5689166 Method and apparatus for controlling hybrid excitation type permanent magnet synchronous motor |
| 11/13/1997 | DE19619145A1 Vehicle windscreen wiper system |
| 11/12/1997 | CN2267577Y Energy-saving and control box for liquid, steam or water pressure equipment |
| 11/12/1997 | CN2267032Y Device for controlling multi-function massage mattress |
| 11/11/1997 | US5687277 Motor drive control device which uses pulse width modulation to control the speed of a motor |
| 11/06/1997 | DE19618039A1 Circuit with temporary store for driving pumps and fans from solar- and/or wind-power-generator |
| 11/05/1997 | EP0805549A1 Circuit arrangement for operating an electric motor |
| 11/04/1997 | US5684377 Apparatus for controlling an input power to an induction motor |
| 11/04/1997 | US5684371 Drive circuit for a bidirectional flow control valve |
| 10/29/1997 | EP0803969A1 Pwm speed regulating apparatus for a dc elevator |
| 10/29/1997 | EP0803145A1 Head rail-mounted mini-blind actuator for vertical blinds and pleated shades |
| 10/28/1997 | US5682459 Speed control for controlling the speed of a DC motor |
| 10/28/1997 | US5682314 Controller apparatus for vehicle |
| 10/23/1997 | WO1997039523A1 Soft switching, pwm controller and method for reducing torque ripple in multiphase dc motor |
| 10/23/1997 | DE19615581A1 Control of electric drives in vehicles e.g. for wind-screen washer drive |
| 10/22/1997 | EP0802588A1 Method for DC Motor operation |
| 10/22/1997 | EP0714568B1 Device for driving a power controlling element of a vehicle driving unit |
| 10/22/1997 | CN2265630Y Module type speed-regulator for dc motor |
| 10/21/1997 | US5680022 Reversing motor speed controller with joystick |
| 10/15/1997 | EP0800979A2 Electric motor driving apparatus |
| 10/09/1997 | WO1997037118A1 Electronic governor having increased droop at lower selected speeds |
| 10/08/1997 | CN1036104C DC motor control circuit and DC motor |
| 10/07/1997 | US5675699 Motor controller |
| 10/07/1997 | US5675240 All digital switching regulator for use in power supplies, battery chargers, and DC motor control circuits |
| 10/07/1997 | US5675231 Systems and methods for protecting a single phase motor from circulating currents |
| 10/07/1997 | US5675169 Motor driving circuit with surge detection/protection and its structure in a semiconductor device |
| 09/30/1997 | US5672051 For an internal combustion engine |
| 09/30/1997 | CA2133469C Synchronous rectification type controller for direct current motors and method of making |
| 09/25/1997 | DE19611227A1 DC machine feed circuit e.g. for traction drives |
| 09/17/1997 | EP0634064B1 Synchronous-rectification type control for direct current motors |
| 09/17/1997 | EP0609407B1 Fail safe switch |
| 09/17/1997 | CN2262777Y Apparatus capable of presetting and automatically regulating speed |
| 09/10/1997 | CN2262307Y Controller for electric driven bicycle |
| 09/10/1997 | CN2262038Y Motor for sewing machine |
| 09/10/1997 | CN1159035A Printer chromatograph error controlling method and controller |
| 09/09/1997 | US5666463 In a microprocessor based closed loop velocity control system for a dc motor |
| 09/09/1997 | US5666066 Overcurrent detecting device for a DC motor |
| 09/09/1997 | US5666036 Circuit for driving a motor used to control an hvac blend door |
| 09/09/1997 | US5666035 Direct current actuator control system using pulse-width modulation in four bipolar transistors connected in H-manner |
| 09/04/1997 | WO1997032389A1 Switch-mode power driver |
| 09/03/1997 | EP0793336A1 Off/on control of a bidirectional motor |
| 09/03/1997 | EP0792765A1 Device for controlling an electric motor, in particular for operating a vehicle sun roof |
| 09/02/1997 | US5664048 Speed control circuit for a DC motor |
| 09/02/1997 | US5664047 System for controlling the speed of a motor driven by an unregulated voltage |