| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
|---|
| 02/12/2009 | US20090039823 Stepper Motor Control Apparatus |
| 02/12/2009 | US20090039821 Step motor driving apparatus |
| 02/11/2009 | EP2023223A1 Apparatus and method for determining a camera's required motor holding current |
| 02/11/2009 | CN101364783A Stepping motor driving apparatus |
| 02/04/2009 | CN100459409C Drive control apparatus for stepping motor and sewing machine |
| 01/29/2009 | WO2009012542A1 Method for control of synchronous electrical motors |
| 01/29/2009 | US20090026996 Pulse motor control device, control method, control program, and imaging apparatus |
| 01/28/2009 | CN100456626C Overcurrent protection circuit, motor drive circuit, and semiconductor device |
| 01/28/2009 | CN100456605C Motor driving device and apparatus including same device |
| 01/21/2009 | EP2017513A1 Valve control apparatus and flow volume controller |
| 01/14/2009 | CN100452637C Stepping motor drive device and method |
| 01/13/2009 | US7477033 Rotation drive system having a speed reduction device with elastic bodies |
| 01/07/2009 | CN101340171A Pecking motor control device |
| 01/07/2009 | CN101340170A Stepping motor driving system and method |
| 01/07/2009 | CN100449916C Stepping motor and drive device |
| 01/01/2009 | US20090001920 Micro-step driving method of stepping motor and electrically-driven device using stepping motor |
| 12/31/2008 | CN100448159C Electronic device and adaptor used therewith |
| 12/31/2008 | CN100448157C Motor stop control device |
| 12/31/2008 | CN100447694C Control system of large stroke nanometer precision location |
| 12/24/2008 | WO2008155294A2 Method and circuit arrangement for operating a brushless dc motor |
| 12/24/2008 | DE102007028384A1 Verfahren und Schaltungsanordnung zum Betreiben eines bürstenlosen Gleichstrommotors Method and circuit arrangement for operating a brushless DC motor |
| 12/24/2008 | CA2688839A1 Calibrating stepper motor by driving fractional ranges |
| 12/18/2008 | US20080309280 Calibrating stepper motor by driving fractional ranges |
| 12/18/2008 | US20080309274 Dual mode stepper motor |
| 12/17/2008 | EP2003771A1 Closed loop sensorless control of permanent magnet synchronous motors |
| 12/17/2008 | EP1658537A4 Method and apparatus for independently controlling each phase of a multi-phase step motor |
| 12/17/2008 | CN201167293Y Drive output device for stepping motor |
| 12/17/2008 | CN100444513C Stepping motor controller and gaming machine |
| 12/10/2008 | CN100442653C Driving control apparatus for motion mechanism and control method of driving control apparatus |
| 12/10/2008 | CN100442652C Stepping motor control apparatus |
| 12/09/2008 | US7463000 Motor controlling method, motor controlling apparatus, and recording apparatus |
| 12/02/2008 | US7459875 Control device for stepping motor |
| 11/27/2008 | US20080290830 Stepping motor driving device, sheet processing device, and image processing apparatus |
| 11/26/2008 | CN101312336A Stepping motor control device, stepping motor control method, image forming device and stepping motor |
| 11/26/2008 | CN100438314C Circuit for driving a stepper motor and method of controlling a stepper motor driver |
| 11/25/2008 | US7456625 Electric circuit |
| 11/19/2008 | CN101309064A Step motor driving circuit |
| 11/19/2008 | CN101309063A Load-drive controller |
| 11/19/2008 | CN101309062A Driving circuit, voltage level shifting unit and motor system |
| 11/19/2008 | CN101309061A Motor driving circuit |
| 11/18/2008 | CA2413997C Open-loop step motor control system |
| 11/13/2008 | US20080278107 Motor drive device, image reading device, image forming apparatus, and motor drive method |
| 11/12/2008 | EP1990907A2 Method of a closed loop control for a step motor, vector control based rotor position determination, detection of a rotor stall condition and a rotor step out condition |
| 11/12/2008 | CN101304230A Control method and apparatus for mechanical absolute zero position in stepper motor transmission system |
| 11/06/2008 | US20080272730 Control Device for Stepping Motor |
| 11/05/2008 | CN101299589A Stepper motor movement controller based on DDS technique |
| 10/30/2008 | US20080265971 Voltage level shift circuits |
| 10/30/2008 | US20080265827 Step motor driving circuits |
| 10/30/2008 | US20080265825 High-Current High-Resolution Driving Circuit |
| 10/30/2008 | US20080265820 Motor driving circuits |
| 10/29/2008 | CN201142663Y Control circuit for synchronous operation of two or more stepping motors |
| 10/29/2008 | CN201142662Y Door type numerical control cutting machine |
| 10/29/2008 | CN201142661Y Four-phase stepping motor device based on single-chip control |
| 10/29/2008 | CN101295919A Large-current high-resolution driving circuit |
| 10/23/2008 | WO2008127826A1 Multiplexed control of multi-axis machine with distributed control amplifier |
| 10/23/2008 | US20080262181 Biocompatible Material |
| 10/22/2008 | CN100428620C Vehicle electric booster steering system controller |
| 10/15/2008 | CN201134757Y Circuit for multipath phase shifting and square wave power outputting |
| 10/15/2008 | CN201134036Y Stepping motor drive apparatus based on CAN bus |
| 10/15/2008 | CN101286721A Driving system of stepping motor with current negative feedback |
| 10/15/2008 | CN101286720A Chip structure for modifiable signal conversion |
| 10/15/2008 | CN100425310C Gaming machine |
| 10/14/2008 | US7436146 Stepping motor speed control method and apparatus suitable for the same |
| 10/14/2008 | US7436137 Drive regenerative control system |
| 10/09/2008 | US20080246423 Drive regenerative control system |
| 10/08/2008 | CN100424378C Actuator control system |
| 10/07/2008 | US7432682 Stepper motor stop and stalling detection method, and stop-detector-equipped stepper motor |
| 10/02/2008 | WO2008117744A1 Poly-phase load drive |
| 10/02/2008 | US20080238353 Image forming apparatus and method |
| 10/01/2008 | CN201127013Y Two-way whole bridge type gate driver capable of improving working voltage |
| 10/01/2008 | CN101276178A Image forming apparatus and method |
| 09/30/2008 | US7429846 Stepping motor control apparatus |
| 09/30/2008 | CA2516650C Pulse output function for programmable logic controller with linear frequency change |
| 09/25/2008 | US20080231220 Image Forming Apparatus Appropriately Setting Current Value for Driving Motor |
| 09/24/2008 | CN201122926Y Stepping motor driver suitable for strong gamma irradiation field |
| 09/24/2008 | CN201122925Y Low-rotation speed high stability stepping motor stepless governor |
| 09/24/2008 | CN100420499C Motor stop control device for gaming machine and gaming machine with the same |
| 09/23/2008 | US7427847 Stepping motor controller, printer, stepping motor control method and stepping motor control program product |
| 09/18/2008 | US20080225456 Overcurrent Protecting Circuit, Motor Drive Circuit, and Semiconductor Device |
| 09/17/2008 | CN201118505Y Step motor controller for automatic tracking system of solar device |
| 09/17/2008 | CN101267182A Step electromotor control method and its device |
| 09/10/2008 | CN201113881Y Stepping motor speed governing control circuit |
| 09/10/2008 | CN201113880Y Output current optional stepping motor driver |
| 09/10/2008 | CN201113879Y Automatic semi-flow stepping motor driver |
| 09/10/2008 | CN201113878Y Driver |
| 09/10/2008 | CN201112422Y General device for three-legged hall element |
| 09/10/2008 | CN100418299C Two-way motive controller |
| 09/04/2008 | DE19829808B4 Verfahren und Einrichtung zum Steuern einer Drosselklappe mit einem bürstenlosen Motor und einem Getriebe Method and apparatus for controlling a throttle valve with a brushless motor and a gear |
| 09/03/2008 | CN101257274A Motor driving apparatus |
| 08/27/2008 | CN201107578Y Self-adapting crystalline silica row needle watch cassette mechanism |
| 08/13/2008 | CN100411298C Stepping motor driver |
| 08/07/2008 | WO2008070382A3 Electric motor controller with brush position detector |
| 08/06/2008 | CN101237207A Integrated circuit for driving motor |
| 07/29/2008 | US7405532 Microstepper motor device and method of controlling the device |
| 07/24/2008 | DE19645558B4 Vorrichtung zum Betätigen einer Induktivitätslast Device for actuating a Induktivitätslast |
| 07/24/2008 | DE10041606B4 Elektromotorischer Antrieb und Verfahren zum Betreiben eines elektronisch kommutierten Elektromotors Electric motor drive and method for operating an electronically commutated electric motor |
| 07/23/2008 | CN101227165A System and method for time-sharing controlling multi stepper motors |
| 07/17/2008 | WO2008084500A2 A method for noise reduction in stepper motors during homing and system thereof |
| 07/10/2008 | US20080164835 Stepping motor controller and stepping motor control program |
| 06/26/2008 | WO2008074451A1 Method for controlling a step motor for actuating a mechanical part |