Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors
Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
10/2003
10/29/2003CN1451452A Circuit for controlling treadlemill using multiplex electronic component
10/28/2003US6639444 Protection circuit
10/28/2003US6639374 Method and device for controlling DC servomotor for driving rotating load
10/28/2003US6639328 Microturbine/capacitor power distribution system
10/23/2003WO2003088469A1 Method and apparatus for pulse variable-controlled movable obstacle detection
10/23/2003WO2003087855A1 Method for measuring currents in a motor controller and motor controller using such method
10/23/2003WO2003030364A3 Control device
10/23/2003CA2448910A1 Method and apparatus for pulse variable-controlled movable obstacle detection
10/22/2003EP1012958B1 Motor reversing circuit
10/21/2003US6636693 DC motor matrix converter with field and armature circuits
10/16/2003WO2003084798A1 Motor-driven power steering apparatus
10/16/2003DE20312723U1 Control for electric motor adjustable drives for furniture, has power and control leads in a single cable which contains at least two supply voltages
10/15/2003CN1449082A Monitoring device, electrical machine tool, current supply device, and associated method of operation
10/15/2003CN1448815A Position controller for motor
10/14/2003US6633144 System and method for measuring parameters of a DC motor field
10/09/2003WO2003047083A3 Control device
10/09/2003US20030189415 Method and apparatus for pulse variable-controlled movable obstacle detection
10/09/2003DE20213758U1 Electric motor drive circuit for actuating device in motor vehicle, uses e.g. resistor and capacitor to generate direction control signal for switching element to control current direction of motor
10/08/2003EP1349711A1 Speed controller for flywheel operated hand tool
10/07/2003CA2233866C Performance event sensing for control of electric motor driven golf car
10/02/2003US20030184308 Monitoring device, electrical machine tool, current supply device, and associated method of operation
10/02/2003US20030184272 Method and control unit for driving a control circuit
09/2003
09/30/2003US6628893 DC motor rotation control apparatus
09/25/2003WO2003078237A1 Electric power steering device control apparatus
09/25/2003US20030182016 Operating mechanism, electrical apparatus, and associated method of operation
09/25/2003US20030179004 Motor abnormality detecting apparatus
09/24/2003CN1122349C Three terminal receiprocal machine/electric transducer
09/18/2003WO2003077408A1 H-bridge with single lead frame
09/18/2003WO2003077322A2 H-bridge with single lead frame
09/18/2003US20030174456 Pre-drive circuit for brushless DC single-phase motor
09/18/2003US20030174449 Power tools
09/18/2003US20030173916 Brushless DC ring motor cooling system
09/17/2003EP1205023B1 Electric motor controlled by an electro-acoustic converter
09/11/2003US20030169006 DC motor driver circuit for use with photovoltaic power source
09/09/2003US6617913 Self-latching H-bridge system and apparatus
09/09/2003US6617816 DC motor rotation detecting apparatus and DC motor rotation control apparatus
09/04/2003WO2003072388A1 Sequenced pulse width modulation method and apparatus for controlling and powering a plurality of direct current motors
09/04/2003US20030165332 Constant speed control circuit for a fan
09/04/2003US20030165072 H-bridge with single lead frame
09/04/2003US20030164545 H-bridge with single lead frame
09/03/2003EP1341294A2 Method and control unit for driving a control circuit
09/03/2003EP1340313A2 Bypass circuit for use in dc brush motor control
09/03/2003EP1340307A1 Closed loop clutch/brake control
09/03/2003CN1440118A Electric motor driver and driving method
09/03/2003CN1120093C Control device and method for printer motor
09/02/2003US6614256 Processes and devices for monitoring the rotation of DC electric motors
09/02/2003US6614199 Device for displacing furniture
08/2003
08/28/2003WO2003071669A2 Device for preventing the creation of narrowband stray radiation spectra in a pulse-width modulated control system of a d.c. motor
08/28/2003US20030160586 Sequenced pulse width modulation method and apparatus for controlling and powering a plurality of direct current motors
08/21/2003US20030155880 Motor driving device and motor driving method
08/19/2003US6608459 Method and device for servo-controlling DC motor
08/19/2003US6608457 System for controlling electric power steering
08/13/2003CN1117537C Electrical circuit structure for supplying power
08/12/2003US6605911 Drive device and method for moving a vehicle part
08/06/2003EP0838035B1 Process and circuit arrangement for determining the speed of a d.c. motor
08/05/2003US6604207 System architecture for remote access and control of environmental management
08/05/2003US6603282 DC motor control device and control method
07/2003
07/31/2003WO2003063334A1 Dc motor controller with full-wave rectified ac for motor drive power
07/31/2003WO2003063323A1 Device for suppressing the radio-interference of an electric commutator
07/31/2003US20030142963 Limited-pool random frequency for DC brush motor low frequency PWM speed control
07/30/2003EP1330868A1 Circuit arrangement of an electromotor comprising two terminals
07/30/2003CN2563832Y Fan control circuit with running horse lamp
07/30/2003CN1433138A Controller for motor driving unit
07/29/2003US6600282 Circuit and method for preventing erroneous opening and closing in an automatically/manually foldable portable radio phone
07/29/2003US6600249 Brushless DC ring motor cooling system
07/29/2003US6599043 Control method for sheet member conveying apparatus and control method for recording apparatus
07/23/2003CN2562493Y DC series motor winding magnetic field automatic orienting devices
07/23/2003CN1431766A Forced oil and forced air cooling control device of power transformers
07/22/2003US6598173 Method of remote access and control of environmental conditions
07/22/2003US6597139 Drive device and method for moving a vehicle part
07/22/2003US6597138 Method and apparatus for controlling power supplied to a motor
07/22/2003US6597135 Combination of resistor and PWM electronic device to control speed of a permanent magnet DC motor
07/16/2003EP1327306A1 Current sense ic
07/15/2003US6594567 Automatic opening/closing device of vehicular opening/closing body and controlling method
07/15/2003US6593717 Apparatus and method for controlling cooling fan for vehicle
07/15/2003US6593716 Circuit using current limiting to reduce power consumption of actuator with DC brush motor
07/15/2003US6593711 Electronic control arrangement
07/15/2003US6592198 Recording apparatus with control of a recording medium conveying mechanism
07/10/2003US20030128002 Method and apparatus for controlling speed of moving body
07/10/2003US20030126915 System for detecting abrasion of brush of direct current motor
07/09/2003EP1326083A1 System for detecting abrasion of brush of direct current motor
07/09/2003CN2560161Y Energy-saving DC electric motor chopping speed controller
07/09/2003CN1429421A AC/DC chopper for power tool
07/08/2003US6590357 Opening and closing control device for cover
07/08/2003US6590356 Combination of resistor and PWM electronic device to control speed of a permanent magnet DC motor
07/03/2003US20030122517 Circuit using current limiting to reduce power consumption of actuator with DC brush motor
07/03/2003US20030122515 Method for detecting the rotational position of the drive shaft a dc motor
07/03/2003US20030122513 System and method for measuring parameters of a DC motor field
07/02/2003EP1324049A2 Method of measuring motor speed
07/02/2003EP1322369A2 Bi-level flow generator
07/02/2003EP0880819B1 Motor control device and apparatus for the recording and/or reproduction of information including the motor control device
07/02/2003CN2559166Y DC motor rotational speed control circuit
07/02/2003CN1427263A Method for testing speed of electric machine
06/2003
06/26/2003WO2003052921A1 Method and circuit arrangement for protecting an electric motor from an overload
06/26/2003US20030117093 Multiple brush-type motor control apparatus and method
06/19/2003WO2003050846A2 Selective potting for controlled failure and electronic devices employing the same
06/19/2003US20030113105 Method of measuring motor speed
06/19/2003US20030111996 Method for determining the rotational position of the drive shaft of a direct current motor
06/19/2003US20030111995 Method for determining the position of an element driven by the drive shaft of a direct current motor
06/19/2003US20030111917 Contact washer system and method for controlling a windscreen wiper motor
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