| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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| 11/24/1994 | DE4336438C1 Method for parameterising a digital voltage regulator, in particular for controlling a transformer having a stepping switch |
| 11/17/1994 | DE4316292A1 Electrical actuating drive |
| 11/17/1994 | DE4018421A1 Stepping motor control e.g. for matrix printer - has programmed microprocessor controlling individual modulation of stepping motor phases |
| 11/09/1994 | CN2182495Y Single-phase driving module for stepping motor |
| 11/02/1994 | EP0622528A1 Method and system for lubricating an internal combustion engine |
| 11/02/1994 | CN2181776Y Stepping motor driver |
| 11/02/1994 | CN1026452C Inductive current switching system and method |
| 11/01/1994 | US5360089 Automotive suspension control system utilizing variable damping force shock absorber |
| 10/27/1994 | DE4416067A1 Elektrischer Wegstreckenzähler mit gesteuertem Antriebsmoment Electrical odometer with controlled torque |
| 10/27/1994 | DE4400482A1 Correction procedure between the electrical phase angle and the mechanical output drive angle of a stepping motor |
| 10/25/1994 | US5359271 Microstepping bipolar stepping motor controller for document positioning |
| 10/19/1994 | CN1093841A Pulse-modulation step-by-step TV set driving power-supply |
| 10/11/1994 | US5355067 Apparatus for controlling a stepping motor used for driving a chemical pump and method of controlling a stepping motor used for driving a chemical pump |
| 10/06/1994 | DE4310557A1 Method for the simultaneous control of a plurality of stepping motors |
| 10/04/1994 | US5352963 Specimen processing and analyzing systems with variable zener-diode flyback stepper motor control |
| 09/28/1994 | EP0617506A1 Method to control a stepping motor |
| 09/08/1994 | DE4329057C1 Error correction method for stepping motors |
| 09/08/1994 | DE4306752A1 Stepping motor control |
| 08/31/1994 | EP0613237A1 Bidirectional chopper transconductance amplifier |
| 08/25/1994 | DE4305086A1 Method and device for driving a stepping motor |
| 08/10/1994 | EP0609778A1 Counter circuit for controlling the operation of a quartz clock with "one touch" or "fast" electrical resetting of the time |
| 08/10/1994 | EP0502875B1 Safety system for a stepper-motor drive |
| 08/02/1994 | US5334920 Recording apparatus |
| 07/12/1994 | US5329214 Motor drive circuit |
| 07/05/1994 | US5327063 Method of controlling a stepping motor |
| 06/16/1994 | DE4242068A1 Control system for stepping motor throttle setting device in automobile - using disparity between actual position and position control valve to provide correction without feedback regulation |
| 06/14/1994 | US5321340 Driving method for three-phase stepping motor |
| 06/01/1994 | CN1024879C Universal power supply for step-by-step motor |
| 05/31/1994 | US5317242 Motor-driving circuit and wire-bonding apparatus |
| 05/24/1994 | US5315226 Method for controlling a synchronous motor for implementation of an exact start/stop positioning operation in a recording apparatus |
| 05/10/1994 | US5311111 Method of calibrating a step motor |
| 05/04/1994 | EP0594891A1 Method to cancel the unstable operation of a stepper motor |
| 04/26/1994 | US5306996 AC/DC stepped drive system |
| 04/19/1994 | US5304910 Device for controlling the electrical power supply of a stepping motor and stepping motor equipped with such a device |
| 04/19/1994 | US5304886 Printed circuit motor |
| 04/14/1994 | WO1994008279A1 Process for controlling a step motor |
| 04/14/1994 | DE4233881A1 High accuracy position system using linear stepping motor drive - has phase angle displaced input current signals used with correction process applied |
| 04/13/1994 | EP0497844B1 Parametric current control for microstepping unipolar motor |
| 04/13/1994 | CN1085359A Voltag driving circuit |
| 04/06/1994 | EP0590223A1 Method and device to recover energy in driving inductive loads |
| 04/06/1994 | CN2161018Y Constant current driver for stepping motor |
| 03/31/1994 | WO1994007289A1 Process and device for electronically monitoring the overload on electric motor drives |
| 03/29/1994 | US5298846 Drive unit for driving a stepping motor |
| 03/22/1994 | US5296792 Bidirectional chopper transconductance amplifier |
| 03/17/1994 | DE4230873A1 Verfahren und Vorrichtung zur elektronischen Überlastüberwachung an elektromotorischen Antrieben Method and apparatus for electronic overload monitoring of electric motor drives |
| 03/16/1994 | CN2159083Y Low-power-loss stepping electric motor driver |
| 03/09/1994 | EP0585581A2 Carriage motor controller for printer |
| 03/09/1994 | CN2158596Y Step electric motor driving arrangement |
| 03/02/1994 | EP0585140A2 Motor drive circuit |
| 03/02/1994 | EP0584772A2 Drive for a stacking table of a pile lifting device for a sheet-fed painting press and method for controlling this drive |
| 03/01/1994 | US5291114 Method of and apparatus for controlling a sheet feeding motor used in a printer |
| 03/01/1994 | US5291111 Drive controller and drive control method for a stepping motor without a step out error |
| 03/01/1994 | CA2104980A1 Motor drive circuit |
| 02/22/1994 | US5289098 Stepping motor driver circuit |
| 02/15/1994 | US5287050 Method of synchronization for an indicating instrument with electromagnetically controlled stepping motor |
| 02/08/1994 | US5285141 Circuit for preventing abnormal rotation of a spindle motor |
| 02/03/1994 | DE4325042A1 Control arrangement for air/fuel mixture supplied to IC engine - Has electronic control unit with correcting procedure for position of stepper motor used to operate throttle flap |
| 02/02/1994 | EP0581300A2 Stepping motor control system |
| 02/01/1994 | US5283510 Method for driving three phase stepping motor |
| 01/26/1994 | CN1081294A Device for automatically controlling mainshaft loading |
| 01/19/1994 | EP0379573B1 Resistance compensation in a motor using a thermally variable resistive network |
| 01/18/1994 | US5280226 Method and device for controlling a stepping motor by interrupting its drive pulse |
| 01/12/1994 | CN2153177Y Microcomputer control speed regulator for tea making machine |
| 01/11/1994 | US5278481 Control of stepping motors |
| 12/28/1993 | US5274316 Stepper motor ramp generation |
| 12/15/1993 | EP0574339A2 Control system for synchronous motor with magnetized rotor |
| 12/14/1993 | US5270961 Control law simulator |
| 12/14/1993 | US5270597 Four phase stepping motor and art of driving same |
| 12/02/1993 | DE4216778A1 Sync apparatus for independently operating power control stages - has separate cycle generator, coupled to each power control stage superimposing short impulse on input to each stage |
| 12/01/1993 | EP0571971A1 Image reading apparatus and method for reading a document during acceleration |
| 12/01/1993 | EP0571759A2 Controlled microstepping for a step motor |
| 12/01/1993 | EP0571758A2 Microstep-control for a step motor |
| 11/30/1993 | US5266879 Stepping motor driving circuit |
| 11/25/1993 | WO1993023918A1 Variable reluctance drive system |
| 11/25/1993 | DE4317134A1 Motor vehicle suspension control system - has motor-driven movable adjustment section adapting absorbing strength of shock absorber |
| 11/25/1993 | CA2134896A1 Variable reluctance drive system |
| 11/24/1993 | EP0571289A1 Apparatus for driving a stepping motor |
| 11/23/1993 | US5264772 Numerically controlled load actuating apparatus |
| 11/23/1993 | US5264771 Stepping motor control system |
| 11/23/1993 | US5264770 Stepper motor driver circuit |
| 11/16/1993 | US5262709 Pulse motor control circuit |
| 11/16/1993 | US5262708 System and method for reducing oscillation of a stepper motor |
| 11/10/1993 | EP0569191A2 Mixed mode stepper motor controller and method |
| 11/09/1993 | US5260634 Constant current driving system for a stepper motor in rotating disk |
| 11/02/1993 | US5258699 Motor control system especially for control of an optical scanner |
| 10/26/1993 | US5256943 Zero adjustment shaft encoder control for stepping motors |
| 10/20/1993 | EP0565700A1 Specimen processing and analyzing systems with variable zener-diode flyback stepper motor control. |
| 10/14/1993 | WO1993020441A1 Automated continuous and random access analytical system and components thereof |
| 10/14/1993 | CA2639400A1 A microparticle enzyme immunoassay (meia) cartridge feeder |
| 10/12/1993 | US5252903 Motor control circuit for autofocus unit |
| 09/30/1993 | DE4209474A1 Controller with bridge circuit e.g. for at least one electrical load in vehicle - establishes different patterns for operation of controlled switches for various ranges of values of measured variables |
| 09/21/1993 | US5247235 Method of supplying power to a single phase step motor |
| 09/21/1993 | US5247217 Safety system for a stepper-motor drive |
| 09/15/1993 | EP0560657A1 Energy transmission device for a mechanical control, particularly to control the braking pressure in a brake |
| 09/15/1993 | EP0560251A2 Stepper motor with vernier control mode |
| 09/15/1993 | CN1076304A Divice for energy transmission for mechanical control |
| 09/14/1993 | US5245359 Recording apparatus with recording head carriage driving motor control |
| 09/11/1993 | CA2091237A1 Energy transmission of a mechanical control, especially for controlling the braking pressure of a brake system |
| 09/08/1993 | EP0559464A1 A closed-loop method and apparatus for controlling acceleration and velocity of a stepper motor |
| 08/24/1993 | US5239218 Step motor and method for recording position signal of motor rotor |