| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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| 06/02/2010 | CN101719755A Method and device for checking lost steps of stepping motor and impedance matching device |
| 06/02/2010 | CN101719711A Micro-stepping motor for instruments |
| 06/01/2010 | US7728543 Stepping motor controlling device |
| 05/26/2010 | CN201490956U Obscure speed accelerating and decelerating controller of automobile instrument stepping motor |
| 05/26/2010 | CN201490955U Two-phase step driver |
| 05/26/2010 | CN201490954U Novel three-phase driver for stepping motor |
| 05/26/2010 | CN201490868U Single-shaft minitype stepping motor driven by singlechip directly |
| 05/26/2010 | CN1534861B Step electric machine controlling device and electronic clock |
| 05/26/2010 | CN101072008B Stepping motor control device, image forming device sequence control device |
| 05/25/2010 | US7723943 Receiving method |
| 05/20/2010 | WO2010054680A1 Method of detecting an operating condition of an electric stepper motor |
| 05/19/2010 | CN101710814A Method for generating random frequency pulse and method for controlling acceleration and deceleration of stepper motor |
| 05/12/2010 | CN201467053U Stepping synchronous driving system |
| 05/12/2010 | CN101707466A Stepping motor, non-synchronization detection structure and method for detecting non-synchronization |
| 05/05/2010 | CN1463074B Motor driver and registering instrument including same |
| 05/05/2010 | CN101701644A Stepping motor air valve and control method |
| 04/28/2010 | CN101699758A Method and circuit for protecting pulse signals of stepping motor from running risk |
| 04/27/2010 | US7705555 Method and controller for detecting a stall condition in a stepping motor during micro-stepping |
| 04/21/2010 | CN101697471A Three electricity-in-one stepper motor driving system for gripper loom |
| 04/20/2010 | US7701807 Analog electronic timepiece that prevents deviation of displayed time when an impact is applied to the timepiece |
| 04/20/2010 | US7701163 Stepping motor control method |
| 04/20/2010 | US7701162 Method for controlling stepping motor |
| 04/15/2010 | US20100090622 Electronic device and monitor opening mechanism for an electronic device |
| 04/01/2010 | WO2010036149A1 Electromechanical vibration generator and a method for operating said generator in a forced-oscillation mode |
| 03/31/2010 | CN101689824A Calibrating stepper motor by driving fractional ranges |
| 03/31/2010 | CN101689048A Multiplexed control of multi-axis machine with distributed control amplifier |
| 03/31/2010 | CN101686032A Novel stepper motor driving circuit |
| 03/30/2010 | US7688020 Step motor driving circuits |
| 03/25/2010 | US20100072941 Drive control system of stepping motor and drive control method technical field |
| 03/24/2010 | CN201430495Y Manually-tunable motor |
| 03/24/2010 | CN100596014C Sine-wave drive of step-by-step motor |
| 03/18/2010 | US20100066277 Load demand and power generation balancing in direct series electric drive system |
| 03/10/2010 | EP2160831A2 Method and circuit arrangement for operating a brushless dc motor |
| 03/04/2010 | US20100052595 Position detecting apparatus having electric motor and method for detecting position |
| 03/03/2010 | EP2158674A2 Calibrating stepper motor by driving fractional ranges |
| 03/02/2010 | US7671556 Image sensing apparatus |
| 02/25/2010 | US20100044607 Plate rotating device, exhaust path opening degree changing device, exhausted device, transfer device, beam device, and gate valve |
| 02/24/2010 | CN201414104Y Driving circuit for rotating cradle head of camera |
| 02/18/2010 | US20100038956 Electronic control system for a spinning wheel cover |
| 02/16/2010 | US7662898 Biocompatible material |
| 02/11/2010 | WO2010015819A2 Micro-stepping reluctance motor |
| 02/10/2010 | CN201403066Y Three-phase subdivision step driver |
| 02/09/2010 | US7659687 Intelligent drive |
| 02/03/2010 | CN201398168Y Control circuit of step motor |
| 02/03/2010 | CN101640512A System for controlling linear interpolation motions based on FPGA |
| 02/02/2010 | US7656115 Calibrating stepper motor by driving fractional ranges |
| 01/27/2010 | CN101635552A Driver of two-phase stepping motor and drive control method |
| 01/27/2010 | CN101635551A Method for controlling gearless step motor in application of instrument |
| 01/27/2010 | CN101635550A Method and device for acquiring initial electric angle of servomotor rotor |
| 01/21/2010 | US20100014389 Analogue electronic clock and motor control circuit |
| 01/20/2010 | CN101632218A Wireless rotisserie |
| 01/13/2010 | CN101626218A Driving signal output circuit and multi chip package |
| 01/13/2010 | CN101626217A Scanner, image forming apparatus, and control method for driving motor of the scanner and the image forming apparatus |
| 01/06/2010 | EP2141559A1 Timepiece fitted with a control case for an electric motor |
| 01/06/2010 | CN201378820Y Three-phase real-time automatic sub-stepping drive |
| 12/31/2009 | US20090322275 Method and apparatus for improving the position accuracy of a servo motor |
| 12/30/2009 | EP2138917A1 Method for synchronising a number of drives and drive operated according to this method |
| 12/30/2009 | EP2137582A1 Multiplexed control of multi-axis machine with distributed control amplifier |
| 12/30/2009 | CN201374674Y Device for controlling stepping motor |
| 12/30/2009 | CN101615879A Subdivision drive method for step motor |
| 12/24/2009 | US20090316535 Stepping motor control circuit and analog electronic timepiece |
| 12/24/2009 | DE102008028803A1 Verfahren zum Ansteuern von Schrittmotoren A method for driving stepper motors |
| 12/23/2009 | WO2009152796A1 Method for operating a display device driven by at least one stepping motor |
| 12/23/2009 | CN101610059A Stepping motor control circuit and analog electronic timepiece |
| 12/23/2009 | CN100574088C Control method for mechanical absolute zero position in stepper motor transmission system |
| 12/17/2009 | US20090309950 Printer and pulse motor control method |
| 12/17/2009 | US20090309534 Automatically determining optimal pulse duration for a stepper motor |
| 12/17/2009 | DE19781858B4 Ansteuerschaltung für eine Last und Ansteuerverfahren A drive circuit for driving a load and |
| 12/16/2009 | EP2133990A1 Printer and pulse motor control method |
| 12/10/2009 | US20090302786 Linear stepping motor |
| 12/10/2009 | DE102008026669A1 Stepper motor operating method, involves temporally synchronizing chopper clock for scanning current flow with frequency of current flow by measuring complete stepping rate of stepper motor concerning to system clock |
| 12/09/2009 | CN101599734A Method for realizing high-precision control of stepping motor by low-precision coded disc |
| 12/03/2009 | WO2009145036A1 Power transmission device |
| 12/02/2009 | CN201355804Y Four-dimensional ultrasonic probe motor control system |
| 12/02/2009 | CN101594111A Step motor controller |
| 12/02/2009 | CN101594110A Repeater motor control circuit and an analog electronic clock |
| 12/02/2009 | CN101594109A Method for smooth drive of stepper motor |
| 12/02/2009 | CN101593525A Drive control apparatus, drive control method and optical pickup apparatus |
| 12/01/2009 | US7626352 Control device for stepping motor |
| 11/19/2009 | US20090285057 Stepping motor drive circuit and analog electronic clock |
| 11/18/2009 | CN101582669A Stepping motor drive circuit and analog electronic clock |
| 11/17/2009 | US7617896 Control device for an electric vehicle |
| 11/12/2009 | US20090277373 Pointer instrument |
| 11/11/2009 | CN201345633Y Contact type pulse distributor of stepper motor |
| 11/11/2009 | CN201345620Y Circuit for producing three-phase sine wave current signals of stepping motor for smooth drive |
| 11/04/2009 | CN201341108Y Pulse conversion circuit arrangement of three-phase mixed stepping driver |
| 10/28/2009 | CN101567601A Actuating device with controllable stroke |
| 10/28/2009 | CN100555836C Power converter controller and control method |
| 10/27/2009 | US7609012 Motor control apparatus |
| 10/21/2009 | EP2110942A2 Method of detecting state of synchronization loss in stepping motor |
| 10/20/2009 | US7606116 Analogue electronic clock and motor control circuit |
| 10/15/2009 | US20090256515 Method of detecting state of synchronization loss in stepping motor |
| 10/08/2009 | US20090251095 Motor driven electronic apparatus |
| 10/07/2009 | CN201323549Y Drive device for high-speed step motor |
| 09/30/2009 | CN101548463A Electric motor controller with brush position detector |
| 09/29/2009 | US7595599 Drive regenerative control system |
| 09/23/2009 | CN101542893A A method and apparatus for eliminating stall and cogging in multi-phase stepping motors |
| 09/23/2009 | CN100543617C Stepping motor control equipment and electronic chronometer |
| 09/17/2009 | WO2009114492A1 Stepper motor driven proportional actuator |
| 09/17/2009 | US20090230911 Optical apparatus |