Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217)
12/2005
12/13/2005US6974061 Control module for flywheel operated hand tool
12/08/2005WO2005117250A1 Coil load driving circuit and optical disc device
12/08/2005US20050269983 Control apparatus for controlling traction motor equipped in vehicle
12/08/2005US20050269982 Motor drive control
12/08/2005US20050269980 Motor driver circuit, control method thereof, and electronic apparatus
12/08/2005US20050269150 Electric power steering unit
12/08/2005CA2563471A1 Draft inducer having a backward curved impeller
12/07/2005EP1603224A1 Motor drive device, hybrid automobile drive device using the same, and computer-readable recording medium containing program for causing computer to execute control of motor drive device
12/07/2005EP1602170A2 Excitation circuit and control method for flux switching motor
12/07/2005EP1214602B8 Method for regulating the rotational speed of a motor and a motor for carrying out a method of this type
12/07/2005CN2745275Y Intelligent power saver for motor
12/07/2005CN1705229A Multivibrator circuit for pulse-width modulation
12/07/2005CN1705221A Motor driver circuit, control method thereof, and electronic apparatus
12/07/2005CN1704300A Electric power steering unit
12/06/2005US6972501 Circuit structure of electric power steering device
12/01/2005US20050264253 Linear power module
12/01/2005US20050264250 Driving circuit for a two-phase DC brushless fan motor
12/01/2005US20050264248 Power steering control device for monitoring reference voltage
12/01/2005US20050264245 Method for monitoring and controlling traction motors in locomotives
12/01/2005DE102005020673A1 Monitoring and control system for operation and protection of DC motors used on automobile systems
12/01/2005DE10128749B4 Steuerung für eine elektrische Servolenkung Control for an electric power steering
11/2005
11/30/2005CN1229906C Controller for motor rotary speed
11/24/2005WO2005112221A2 Cordless power tool with tool identification circuitry
11/24/2005US20050258792 Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit
11/24/2005US20050258791 Electric power steering apparatus and control method of the same
11/24/2005US20050258788 Motor driving apparatus
11/24/2005DE102004021169A1 Electrically operated arrangement for adjusting sitting and reclining furniture has manual select for different speed adjustment of actuator motor
11/23/2005EP0852084B1 Switching circuit with lockout feature
11/23/2005CN2742674Y DC motor speed regulating device
11/23/2005CN1701503A Power circuit of high speed motor
11/23/2005CN1700588A Motor driving apparatus
11/23/2005CN1700578A Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit
11/23/2005CN1228912C Motor driving apparatus and motor using the same
11/17/2005WO2005109611A1 Commutator motor having a number of field winding groups
11/17/2005WO2005108185A2 Wheel chair drive apparatus and method
11/17/2005US20050254800 Control system for brushless DC ring motor cooling fan
11/17/2005US20050254799 Brushless dc fan motor
11/17/2005US20050253543 Method, apparatus and article for vibration compensation in electric drivetrains
11/17/2005US20050253540 Electric drive control device, electric drive control method, and program of same
11/17/2005US20050253479 Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets
11/17/2005US20050253233 Power module and electric transportation apparatus incorporating the same
11/16/2005EP1596494A2 AC rotating electric machine control method and electrical power train system
11/16/2005EP1596492A1 Motor control method and motor controller
11/16/2005EP1596491A2 Damping control in a three-phase motor with a single current sensor
11/16/2005EP1595767A2 Power steering control device for monitoring reference voltage
11/16/2005CN1697305A Damping control in a three-phase motor with a single current sensor
11/15/2005US6965222 Current controller for inductive load
11/15/2005US6965210 Robot apparatus, and load absorbing apparatus and method
11/15/2005US6965208 Motor speed detecting device for use between motor and system
11/15/2005US6965182 Pole-change type motor
11/10/2005WO2005107048A1 Valve electric drive
11/10/2005US20050249339 Providing notification of voicemail (VM) messages using instant messaging (IM) transport
11/10/2005US20050248361 Damping control in a three-phase motor with a single current sensor
11/10/2005US20050248320 Switch reduction in a cordless power tool
11/10/2005US20050248318 Cordless power tool with a protected weak link element
11/10/2005US20050248309 Cordless power tool with tool identification circuitry
11/10/2005US20050248303 Power tool with remote stop
11/09/2005EP1594209A1 Reducing the number of power switches in a cordless power tool
11/09/2005EP1593124A1 Disk tray mechanism for reproducing apparatus
11/09/2005CN1694330A Cordless power tool with tool identification circuitry
11/08/2005US6963183 Control circuit for a direct current motor
11/03/2005WO2005104332A2 Resonant motor system
11/03/2005US20050242765 Motor drive apparatus and electric power steering apparatus
11/03/2005US20050242759 AC rotating electric machine control method and electrical power train system
11/03/2005DE102004018169A1 Circuit arrangement for controlling motor voltage, especially of fan motor, has switches in form of transistors and control electronics for matching motor voltage to desired motor voltage that is function of desired value signal
11/03/2005DE102004017946A1 Akkumulatorbetriebene Handwerkzeugmaschine Akkumulatorbetriebene hand tool
11/03/2005DE102004005169B3 Rotor blade pitch control system for wind turbine generating electricity has DC supply for motor with parallel-wound and series-wound field coils with diode bypassing series field coil during braking
11/02/2005EP1591347A2 Motor drive apparatus and electric power steering apparatus
11/02/2005EP1590882A1 Method and control circuit for reducing line-bound disturbances in pulse-width modulated control of an electric motor
11/02/2005EP1244564B1 Electric circuit arrangement for controlling an electromotor in a motor vehicle
11/02/2005EP1219016A4 Direct current motor control circuit
11/02/2005CN1691492A Power module and electric transportation apparatus incorporating the same
11/01/2005US6960938 Enhanced CMOS circuit to drive DC motors
11/01/2005US6960896 Programmable high-speed motor torque controller
10/2005
10/27/2005US20050238337 Wheel chair drive apparatus and method
10/27/2005US20050238336 Method and apparatus to achieve accurate fan tachometer with programmable look-up table
10/27/2005US20050238335 Speed control apparatus of motor
10/27/2005US20050236194 Wheel chair apparatus and method
10/27/2005DE202005008809U1 Electrical disturbance reducing circuit for DC motor, has auxiliary voltage source making series transistor fully conductive, and analyzer circuit analyzing supply voltage to increase resistance of transistor
10/27/2005DE202004020586U1 Brushless fan motor operating method, involves directly or indirectly regulating number of revolutions of motor by governor, and evaluating output signal of governor if signal reaches preset threshold that is longer than regulation period
10/27/2005DE10145711B4 Öffnungs- und Schließsteuerungsvorrichtung für eine Abdeckung Opening and closing control device for a cover
10/26/2005EP1589711A2 Sensor signalling circuit and measuring instrument using it
10/26/2005EP1588479A2 Multiphase motor voltage control for phase windings of different wire gauges and winding turns
10/26/2005EP1588478A2 Method and control circuit for triggering an electric motor by means of a pulse width modulation signal
10/26/2005CN1689220A Motor drive control
10/26/2005CN1225078C Frequency-conversion voltage-varying speed control method with high-torque vector control for asynchronous motor
10/26/2005CN1224436C Circuit for controlling treadlemill using multiplex electronic component
10/25/2005US6958587 Torque distribution for multiple propulsion system vehicles
10/20/2005WO2005062455A8 Device for power adjustment by phase control and method for reduction of harmonic waves
10/20/2005US20050234595 Self-propelled cleaner and method of controlling the same
10/20/2005US20050232061 Systems for writing and reading highly resolved domains for high density data storage
10/20/2005US20050232004 Methods for erasing bit cells in a high density data storage device
10/20/2005US20050231880 Electric motor driving apparatus
10/20/2005US20050231146 Motor drive
10/20/2005US20050231144 Regenerative breaking system for electric vehicle
10/20/2005US20050231140 Control apparatus for vibration type actuator
10/20/2005US20050230135 Rechargeable battery-operated hand machine tool
10/19/2005CN2735653Y Variable frequency DC motor pulse width modulator
10/19/2005CN1683904A Sensor signalling circuit and measuring instrument using it
10/19/2005CN1683118A Rechargeable battery-operated hand machine tool
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