| Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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| 05/20/2004 | US20040098213 Method for determining the frequency of the current ripple in the armature current of a commutated DC motor |
| 05/19/2004 | DE10250449A1 Kommutierungsverfahren, insbesondere für einen kollektorlosen Gleichstrommotor Commutation, in particular for a brushless DC motor |
| 05/19/2004 | CN2617076Y Motor speed controller |
| 05/19/2004 | CN1497834A Electric bicycle and control pattern selecting method of electric vehicle |
| 05/19/2004 | CN1497833A 电动车辆 Electric vehicles |
| 05/19/2004 | CN1497631A Paralled switch device |
| 05/19/2004 | CN1496701A Vacuum cleaner |
| 05/18/2004 | US6738239 Active snubber circuit for electrical rotary actuator |
| 05/18/2004 | US6737824 Fan acceleration control |
| 05/13/2004 | WO2004040747A1 Commutation method for a bridge circuit |
| 05/13/2004 | US20040090196 Multiphase motor having winding connections specific to respective operating speed ranges |
| 05/11/2004 | CA2367933C Door operator system |
| 05/06/2004 | WO2003100957A9 Method, apparatus, and system for drive control, power conversion, and start-up control |
| 05/06/2004 | WO2003100956A9 Apparatus and method for identifying an operational phase and controlling energization |
| 05/06/2004 | US20040085695 Method and control system for controlling electric motors |
| 05/06/2004 | US20040085042 Method of and apparatus for controlling the operation of an induction motor using a model of the induction motor |
| 05/06/2004 | US20040085035 Position control apparatus for motor |
| 05/06/2004 | US20040085033 H-bridge apparatus and method |
| 05/06/2004 | EP1416625A2 H-Bridge apparatus and method |
| 05/06/2004 | EP1416624A1 Method and control system for controlling electric motors |
| 05/04/2004 | US6731095 Controller for multiplex winding motor |
| 05/04/2004 | US6731089 Flexible and compact motor control module based on the can communication network |
| 04/29/2004 | WO2004001515A9 Speed and fluid flow controller |
| 04/29/2004 | US20040080288 Fan motor control for a ventilation system |
| 04/28/2004 | EP1413044A2 Method for operating an electronically commutated motor, and motor for carrying out one such method |
| 04/28/2004 | CN1492198A 空调机 Air conditioning |
| 04/22/2004 | DE10232716A1 Blower control in a motor vehicle combustion engine, has increased electromagnetic tolerance and dielectric filled capacitor energy store as part of a filter |
| 04/21/2004 | EP1410751A2 Electric vacuum cleaner |
| 04/20/2004 | US6724164 Opening-and-closing member control device |
| 04/15/2004 | WO2004031658A1 Air conditioner |
| 04/15/2004 | WO2004004109A9 Electronically controlled electric motor |
| 04/15/2004 | US20040070359 Arrangement for automatically influencing a mains supply and motor drive for said arrangement |
| 04/15/2004 | DE4229440B4 Schaltungsanordnung zum Ein- und Ausschalten einer elektrischen Last Circuitry for switching on and off of an electrical load |
| 04/14/2004 | EP1408523A2 Switch device |
| 04/14/2004 | EP1407958A2 Control apparatus for an electric power steering system |
| 04/14/2004 | EP1407537A1 Microprocessor for controlling the speed and frequency of a motor shaft in a power tool |
| 04/14/2004 | CN1489280A Current detecting device and motor drive device using same |
| 04/14/2004 | CN1488514A Recording device and control method thereof |
| 04/13/2004 | US6721496 Electrical resonance circuits for high efficiency direct current motors |
| 04/13/2004 | US6720747 Moveable barrier operator |
| 04/13/2004 | US6719377 Method and device for controlling a pump of a brake system |
| 04/08/2004 | WO2004030200A1 Brushless dc fan motor |
| 04/07/2004 | EP1406095A1 Electric current detector and motor driving device using the same |
| 04/07/2004 | CN2610542Y Special protection controller for variable frequency constant-pressure water supply control device |
| 04/06/2004 | USRE38486 Electric motor control circuit |
| 04/06/2004 | US6717384 Frequency changer protection circuit for controlling the acceleration of an electric vehicle |
| 03/31/2004 | EP1402621A2 Arrangement for automatically influencing a mains supply and motor drive for said arrangement |
| 03/31/2004 | CN1485976A Power tool trigger control |
| 03/30/2004 | US6713906 Pre-drive circuit for brushless DC single-phase motor |
| 03/25/2004 | US20040056621 Movable barrier operator |
| 03/25/2004 | US20040056620 Automobile wiper driving apparatus |
| 03/25/2004 | US20040056615 System and method for monitoring current and providing motor protection |
| 03/25/2004 | US20040055363 Speed and fluid flow controller |
| 03/25/2004 | DE10242406A1 Direct current motor rotational velocity measurement method in which the voltage to the motor is supplied across a field effect transistor and the resultant voltage drop signal across the FET used to generate a motor speed signal |
| 03/24/2004 | EP1400007A2 Control device for dc motors |
| 03/24/2004 | CN2607696Y Safety DC motor chopping speed regulator |
| 03/24/2004 | CN1484885A Pole-change type motor |
| 03/24/2004 | CN1143249C Soundless alarm device |
| 03/23/2004 | US6710574 Reversible DC motor drive including a DC/DC converter and four quadrant DC/DC controller |
| 03/23/2004 | US6710569 Motor driving device and motor driving method |
| 03/23/2004 | US6710560 Movable barrier operator |
| 03/18/2004 | WO2004023639A1 Motor drive control |
| 03/18/2004 | WO2004001515A3 Speed and fluid flow controller |
| 03/18/2004 | US20040051488 Circuit arrangement of an electromotor comprising two terminals |
| 03/17/2004 | CN2606908Y Two stage type rolling speed controller for electric rolling door |
| 03/11/2004 | DE10239181A1 Electromechanical drive for garage door, has drive motor moving along guide rail using drive wheel, and has sliding current pickups touching conductor rails with insulator bodies at ends |
| 03/04/2004 | US20040041854 Printing apparatus and printing apparatus control method |
| 03/04/2004 | US20040041531 Power tool trigger control |
| 03/04/2004 | DE10336259A1 Schaltungsstruktur einer elektrisch betriebenen Lenkeinrichtung Circuit structure of an electrically powered steering device |
| 03/04/2004 | DE10314176A1 Automatisch klappbares zelluläres Telefon mit variabler Öffnungs- und Schließgeschwindigkeit Automatic folding cellular phone with variable opening and closing speed |
| 03/03/2004 | EP1393433A1 Method for determining the rotating position of the drive shaft of a commutated direct current motor |
| 03/03/2004 | CN1479966A System of automatically influencing electric net and motor drive for said system |
| 03/02/2004 | US6700339 Circuit for regulating a power supply voltage |
| 03/02/2004 | US6700281 DC motor and method of controlling the same |
| 02/26/2004 | WO2003100948B1 Pmbdcm and two-phase srm motor |
| 02/26/2004 | US20040038718 Auto-folder type cellular phone with variable opening and closing velocity |
| 02/26/2004 | US20040036433 Dual function solid state relay |
| 02/26/2004 | US20040036430 Electrical drive apparatus which can be operated via a full-bridge circuit, with a different load depending on the drive direction |
| 02/26/2004 | US20040036428 Direction detection and count method for three channel commutation sensor |
| 02/26/2004 | DE10237433A1 Power supply for electric motors in vehicle with 42 V supply network, halves supply voltage using voltage divider and op-amp, with zero-potential output connected to motor terminal |
| 02/25/2004 | EP1391029A1 Method for determining the rotational position of the drive shaft of a commutated dc motor |
| 02/25/2004 | EP1390764A1 Method for determining the frequency of the current ripple in the armature current of a commutated d.c motor |
| 02/25/2004 | EP1390763A1 Method for correcting the determination of the rotational position of a commutated d.c. motor drive shaft |
| 02/25/2004 | CN1477841A Automatic lid-folding cellular telephone with variable opening and closing speed |
| 02/25/2004 | CN1477767A Electric motor driving controller |
| 02/24/2004 | US6697963 Method of updating a system environmental setting |
| 02/24/2004 | US6697273 Control unit for controlling a direct-current load |
| 02/24/2004 | US6696814 Microprocessor for controlling the speed and frequency of a motor shaft in a power tool |
| 02/19/2004 | DE10237434A1 Voltage supply for electric motor e.g. for setting drive controlling automobile air-conditioning device, is provided with at least one transistor half bridge circuit |
| 02/18/2004 | EP1389361A1 Method for correcting the determination of the rotating position of a drive shaft of a commutated direct current motor |
| 02/18/2004 | EP1031182B1 Method and circuit for generating a pulse-width modulated actuating signal for a direct current actuator |
| 02/18/2004 | CN2603815Y Electrical control apparatus for electric excavator |
| 02/18/2004 | CN1475886A Device for changing delivered fluid pressure of spray scrubber |
| 02/12/2004 | WO2003038985A3 Current controlled motor amplifier system |
| 02/12/2004 | US20040028531 Circuit structure of electric power steering device |
| 02/12/2004 | US20040027264 Method for providing a digital current fluctuation signal |
| 02/12/2004 | US20040027078 Gas turbine engine starter generator with multiple windings on each exciter stator pole |
| 02/12/2004 | US20040027077 Gas turbine engine starter generator with switchable exciter stator windings |
| 02/12/2004 | DE10232717A1 Fan control circuit for vehicle cooling fan, has additional power switch for turning on electrical drives in fan device that are supplied by energy storage device or on-board electrical system |
| 02/11/2004 | EP1388204A1 Drive unit |