| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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| 02/08/1994 | US5285137 User selected controller for a window operator |
| 02/02/1994 | EP0581557A1 Control circuit of dc-motor having multi-tap series field winding |
| 01/26/1994 | EP0579694A1 Process and circuits for determining machine-related electromagnetic and mechanical state variables on electrodynamic induction machines supplied via converters. |
| 01/25/1994 | US5281902 Voltage compensation of a pulse-width-modulated servomechanism |
| 01/25/1994 | US5281900 DC motor controller |
| 01/13/1994 | DE4322991A1 Motor control installation - capable of stopping all motors, (and the rolls driven by these motors) at the same time |
| 01/13/1994 | DE4241066C1 Automatische Laststromrückregelung Automatic load current feedback control |
| 01/13/1994 | DE4222366A1 Electrical motor operated vehicle door safety mechanism to prevent operation by children - has central driver operation to cause mechanical interlock to move to position where door lock cannot be operated |
| 01/12/1994 | CN1080795A Energy-saving no surge start speed regulating motor |
| 01/12/1994 | CN1080794A Numerical controlling started rare-earth permanent magnetic motor |
| 01/06/1994 | WO1993020611A3 Synchronous-rectification type control for direct current motors and method of making |
| 01/05/1994 | EP0577367A2 Slew rate circuit for high side driver for a polyphase DC motor |
| 01/05/1994 | EP0576668A1 Pulse width modulation power circuit |
| 01/05/1994 | DE4321286A1 Closed loop digital regulator for electromotor - has two-point feed forward component added in to provide PWM control action |
| 12/29/1993 | EP0576257A2 Speed control device for DC motor |
| 12/29/1993 | CN2151579Y Dynamic current-feedback magnet exciting DC motor |
| 12/28/1993 | US5274735 Electric shaver |
| 12/28/1993 | US5273349 Antilock brake system with motor current control |
| 12/23/1993 | CA2115243A1 Solid-state sensing and control transit car door system |
| 12/22/1993 | EP0574931A1 Device for controlling reverse rotation of motor and method of judging time point where motor is actually rotated in reverse direction |
| 12/22/1993 | EP0574815A1 Bi-directional load current drive circuit |
| 12/22/1993 | CN2150665Y Numerical controlled twin type rare earth permanent magnetic motor |
| 12/21/1993 | US5271346 Driving device for a sewing machine |
| 12/14/1993 | US5270633 Ternary energy supply circuit with a high frequency rejection filter |
| 12/14/1993 | US5270623 Method of controlling speed of rotation of motor |
| 12/07/1993 | US5268987 Speed control device for DC motor |
| 12/07/1993 | US5268623 D.c. motor with a current-limiting arrangement |
| 12/01/1993 | EP0572162A2 Sense FET and fast amplifier |
| 12/01/1993 | CN2148431Y Full numerically-controlled lineal motor with tube type rotating shaft |
| 11/30/1993 | US5267344 Direct current power control circuit for use in conjunction with regulated input signal |
| 11/25/1993 | WO1993023920A1 Control circuit |
| 11/25/1993 | DE4316509A1 Semiconductor component with improved performance - comprises integrated half-bridge switch in single chip, one element being vertical thyristor, and other element vertical bipolar transistor |
| 11/24/1993 | EP0571289A1 Apparatus for driving a stepping motor |
| 11/23/1993 | US5265188 Control system for controlling object at constant state |
| 11/23/1993 | US5264767 Electro-hydraulic control apparatus for improved hydraulic pressure control |
| 11/18/1993 | DE4216203A1 Steuerschaltung Control circuit |
| 11/16/1993 | US5262705 IC device for drive control of small hard disk drive unit |
| 11/09/1993 | US5261025 Method and apparatus for DC motor speed control |
| 11/09/1993 | US5260632 Position control system |
| 11/03/1993 | EP0567695A1 Direct current motor driving device |
| 10/27/1993 | CN2144896Y Numerical control full speed electric/motive power device |
| 10/26/1993 | US5257175 Regulation circuit |
| 10/26/1993 | US5256944 Motor speed control method and apparatus with drooping compensation independent of acceleration or deceleration current and time constant of motor |
| 10/20/1993 | EP0371094B1 Digital motor control system |
| 10/20/1993 | CN1077574A Dynamic current feedback exciting type DC motor |
| 10/19/1993 | US5254917 Direct current motor driving device |
| 10/19/1993 | US5254913 Speed limiting circuit for universal type series or compound electric motor |
| 10/14/1993 | WO1993020611A2 Synchronous-rectification type control for direct current motors and method of making |
| 10/14/1993 | WO1993019949A1 An optimal dc motor/controller configuration |
| 10/13/1993 | EP0564771A2 Drive control apparatus for electrical machine and parameter display method in drive control apparatus for electrical machine |
| 10/13/1993 | CN1077319A DC divided or compound excitation motor with controllable dynamic property and circuit device thereof |
| 09/30/1993 | WO1993019458A1 Electronic cancellation of d.c. motor noise |
| 09/30/1993 | WO1993019406A1 Improved pwm control for electric motor driven piston paint pumps |
| 09/30/1993 | DE4210213A1 Vehicle DC servomotor controller - has servomotor controller supplied from voltage regulator which is momentarily short- circuited when motor starts |
| 09/22/1993 | EP0561623A2 Dynamic current feedback magnetizing type shunt or series or compound DC motor-generator control circuit |
| 09/15/1993 | EP0560657A1 Energy transmission device for a mechanical control, particularly to control the braking pressure in a brake |
| 09/15/1993 | EP0560653A1 Control method for an electromechanical load by at least one converter with pulsed switch(es) and device for its operation |
| 09/15/1993 | EP0560089A1 An electric drive system in lift trucks |
| 09/15/1993 | CN2142242Y Non-vibrating adjustable-speed apparatus for direct-current motor |
| 09/15/1993 | CN1076304A Divice for energy transmission for mechanical control |
| 09/14/1993 | US5245531 Multiplexed digital control device |
| 09/14/1993 | US5245523 Power delivery circuit with current detection |
| 09/11/1993 | CA2091237A1 Energy transmission of a mechanical control, especially for controlling the braking pressure of a brake system |
| 09/07/1993 | US5243475 Apparatus for controlling open/close drive of a lid for a recording medium player |
| 09/01/1993 | EP0558124A1 Integrated circuit comprising a unit for controlling a load of an inductive nature |
| 09/01/1993 | EP0557543A1 Variable speed motor control |
| 08/25/1993 | EP0556191A1 Servomotor-control circuit. |
| 08/18/1993 | CN2140589Y Multifunctional electric motor with rotor magnetic trend holographic control |
| 08/17/1993 | US5237302 Fail safe switch |
| 08/04/1993 | EP0554170A1 Mechanical device having variable resistive circuit to control a load, in particular an electric motor |
| 08/04/1993 | EP0313637B1 Direct current motor speed control |
| 08/03/1993 | US5232052 Apparatus and method for controlling the introduction of chemical foamant into a water stream in fire-fighting equipment |
| 07/29/1993 | DE4201594A1 Transistor controller for motor vehicle fan |
| 07/28/1993 | EP0553036A1 Electrical DC motor with predetermined speeds |
| 07/28/1993 | EP0318530B1 An apparatus for interactively accelerating an electric drive vehicle |
| 07/27/1993 | US5231341 Limiter circuit of servo motor control apparatus |
| 07/22/1993 | WO1993014559A1 Pulse width modulation power circuit |
| 07/21/1993 | CN2138858Y Full direction protective economic operation controller of motor |
| 07/21/1993 | CN1021687C Electromechanical integrated DC motor controller |
| 07/20/1993 | US5230035 Motor speed controller |
| 07/20/1993 | US5229677 Electric propulsion motor for marine vehicles |
| 07/18/1993 | CA2085518A1 Dc motor reversing control |
| 07/14/1993 | EP0550952A1 Single-button actuated self-correcting automatic convertible top |
| 07/14/1993 | CN2137980Y High effective filtering machine |
| 07/14/1993 | CN2137979Y Belt filtering machine |
| 07/06/1993 | US5225751 Power supply circuit for a motor |
| 07/06/1993 | US5225747 Single-button actuated self-correcting automatic convertible top |
| 07/06/1993 | US5225729 Lap-wound stator with adjustable commutating angle |
| 06/30/1993 | EP0468989B1 Control circuit |
| 06/30/1993 | CN2137140Y Power-driver for stretching cervical or lumbar vertebra |
| 06/24/1993 | DE4142569A1 Automobile servomotor steering circuit - has transistor switch controlled by pulse width modulated signal and parallel relay exhibiting lower losses connected across transistor |
| 06/17/1993 | DE4141093A1 Digitally controlled pulse width modulator for dc motor control - provides output signal with variable duty cycle to be applied to DC motor to control rate of rotation |
| 06/17/1993 | DE4141081A1 Low-average-current controller for vehicular electric motor - incorporates time constant redn. network for improvement of load current decay behaviour after switching of drive |
| 06/16/1993 | CN1021272C Multifunctional controller for electric fan without interference |
| 06/15/1993 | US5220634 Control circuit for a dc motor |
| 06/08/1993 | US5218339 Arrangement for monitoring a consumer in combination with an internal combustion engine and/or a motor vehicle |
| 06/08/1993 | US5218276 Integrated circuit device of remote control type for driving a D.C. motor |
| 06/03/1993 | DE4217037C1 Vehicle air-conditioning or heating controller - has resistance box in series with motor and selector connected by Bowden cable to rotary switch in cabin |
| 06/02/1993 | CN1021095C Power supply circuit |
| 05/27/1993 | DE4237120A1 Current rectifier arrangement for generating d.c voltage for d.c. machine - contains two input and output ports, controlled switches and rectifier element |