Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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11/05/2008 | CN201146480Y Fan DC motor controller |
11/05/2008 | CN101300732A Drill with solid state speed control and method of operating |
11/05/2008 | CN100430728C Method for testing speed of electric machine |
11/04/2008 | US7446499 Position detecting apparatus having electric motor and method for detecting position |
11/04/2008 | US7446492 Fan system and stopping method for motor thereof |
10/30/2008 | WO2008130982A1 Method of controlling a motorized window treatment |
10/30/2008 | WO2008130560A1 Three degree of movement mover and method for controlling the same |
10/30/2008 | US20080265859 Electronic device for controlled failure |
10/30/2008 | US20080265830 Systems and methods for controlling torque of a motor |
10/30/2008 | US20080265825 High-Current High-Resolution Driving Circuit |
10/30/2008 | US20080265820 Motor driving circuits |
10/30/2008 | US20080265811 DC motor variable kick-start |
10/30/2008 | US20080265810 DC motor structure for hoist machine |
10/30/2008 | CA2684642A1 Method of controlling a motorized window treatment |
10/29/2008 | CN201140678Y Chopped wave speed regulating device of DC electric locomotive |
10/28/2008 | US7444070 Fan motor with digital controller for applying substantially constant driving current |
10/28/2008 | US7443122 Electric drivetrain thermal protection system |
10/28/2008 | US7443118 Method and device for triggering an electric motor |
10/28/2008 | US7443117 Control apparatus for electric vehicles |
10/23/2008 | US20080260525 Device For Supplying Pulse Width-Modulated Output Pulses For the Motor of a Fan |
10/23/2008 | US20080260363 Method of Controlling a Motorized Window Treatment |
10/23/2008 | US20080260362 Method and system for operating a motor to avoid selected pulse ratio values |
10/23/2008 | US20080260361 Method and apparatus for active noise reduction in fans |
10/23/2008 | US20080258664 Fan circuit with a fan speed control circuit |
10/23/2008 | US20080258661 Inverter topology for an electric motor |
10/23/2008 | US20080258660 Method for detecting initial magnetic pole position in permanent-magnet motor |
10/22/2008 | EP1216526B1 Reduction of emi through switching frequency dithering |
10/22/2008 | CN201138777Y DC electric machine with brush in seam |
10/22/2008 | CN201138740Y Anti-stall apparatus for series-excited motors when idle loaded |
10/22/2008 | CN100428621C Variable frequency control device of brushless DC motor |
10/22/2008 | CN100428620C Vehicle electric booster steering system controller |
10/21/2008 | US7439698 Electric motor system |
10/16/2008 | WO2007149360A3 Hands free waste flap apparatus and method |
10/16/2008 | US20080253753 Brushed Motor Control with Voltage Boost for Reverse and Braking |
10/16/2008 | US20080253752 Method for detecting and controlling output characteristics of a dc motor and a self-propelled apparatus using the same |
10/16/2008 | US20080253751 Method and apparatus for controlling rotational speed of fan |
10/16/2008 | US20080253750 Protect-control device capable of limiting current for reducing noise resultling from switchover of motor |
10/16/2008 | US20080252285 Machine with a rotary position-sensing system |
10/16/2008 | US20080252245 Motor Driving Circuit Having Low Current Consumption under a Standby Mode |
10/16/2008 | US20080252241 Sensorless driving method for brushless dc motor |
10/16/2008 | US20080252239 Method capable of controlling brushless dc motor |
10/15/2008 | CN101286719A Motor driving device, lockedrotor protecting method and cooling device using the same |
10/15/2008 | CN100426654C Precision current sensor used for electric machine control |
10/15/2008 | CN100426653C Quick current-sensing device for motor control |
10/15/2008 | CN100426652C Torque ripple and noise reduction by avoiding mechanical resonance for a brushless DC machine |
10/15/2008 | CN100426401C Disk tray mechanism for reproducing apparatus |
10/14/2008 | US7437215 Method and system for improving pump efficiency and productivity under power disturbance conditions |
10/14/2008 | US7436154 Vehicle generator control device |
10/14/2008 | US7436147 Motor driving apparatus |
10/14/2008 | US7436138 Methods and systems for emulating an induction motor utilizing an electronically commutated motor |
10/09/2008 | US20080247735 Adaptive and reconfigurable system for dc motor control |
10/09/2008 | US20080247734 Motor driving circuit |
10/08/2008 | EP1649590B1 Load driver capable of suppressing overcurrent |
10/08/2008 | CN100424987C Circuit for controlling fan rotating speed |
10/08/2008 | CN100424986C Device for controlling motor oscillating by audio frequency |
10/08/2008 | CN100424961C Cordless power tool with tool identification circuitry |
10/08/2008 | CN100424378C Actuator control system |
10/07/2008 | US7432678 Motor driving apparatus and control method thereof |
10/07/2008 | US7432675 Method of removing foreign particles from heat transfer surfaces of heat sinks |
10/07/2008 | US7432673 Method, medium, and apparatus controlling current gain change of a spindle motor driver |
10/02/2008 | US20080240688 Fan controller with duty cycle comparator |
10/02/2008 | US20080238349 Method and circuit for controlling motor and brushless motor system using the same |
10/02/2008 | US20080238348 Rotary, limited rotation bi-directional, direct current actuator |
10/02/2008 | US20080238233 Fault-tolerant permanent magnet machine with reconfigurable stator core slot opening and back iron flux paths |
10/02/2008 | DE10082533B4 Verfahren zur Einstellung einer Ist-Geschwindigkeit der Hubbewegung einer Fensterscheibe Method for setting an actual speed of the lifting movement of a window pane |
10/01/2008 | EP1974459A2 Systems and methods of monitoring a motor load |
10/01/2008 | CN201124136Y Backpack type high pressure electric sprayer |
10/01/2008 | CN100422528C Hybrid type working machine |
09/30/2008 | US7429836 Motor driver circuit, control method thereof, and electronic apparatus |
09/25/2008 | US20080234897 Power Supply Controller |
09/25/2008 | US20080231218 Apparatus and method of driving motor, and drive apparatus using the same |
09/25/2008 | US20080230302 Motor-Driven Power Steering Apparatus |
09/25/2008 | US20080230035 Fluid pump control apparatus |
09/25/2008 | DE102007013711A1 Verfahren und Vorrichtung zur Dreherfassung eines bürstenbetriebenen Gleichstrommotors Method and apparatus for rotation sensing a brush-operated dc motor |
09/24/2008 | CN201122924Y LED/LCD velocity-displaying electric clippers |
09/24/2008 | CN100421345C DC-to-AC converter |
09/23/2008 | US7428439 Wireless foot control system with optical transmitter and transceiver |
09/23/2008 | US7427843 Electrically operated power steering controller and adjusting method of driving electric current offset in this controller |
09/23/2008 | US7427842 Series motor and method of controlling the same |
09/18/2008 | US20080226266 Control Apparatus for and Control Method of Controlling Motor for Vehicle |
09/18/2008 | US20080224642 System and related methods for diagnosing operational performance of a motorized barrier operator |
09/18/2008 | US20080223059 Control Method and System |
09/18/2008 | DE102007055837A1 Last-Ansteuerverfahren Load-driving |
09/18/2008 | DE102007012211A1 Motor control current controlling method, involves limiting output level of drive unit for coil corresponding to signal from sensor by controller, where controller has pulse width modulation input for pulse width modulation signal |
09/18/2008 | DE102007012172A1 Current limiting controller for use in drive switch, has sensor detecting control level for coil, where controller adjusts control level of drive unit for coil corresponding to signal from sensor |
09/17/2008 | EP1969710A2 Method and apparatus for sensorless position control of a permanent magnet synchronous motor (pmsm) drive system |
09/17/2008 | CN201118504Y A speed-adjusting device for car front processing technology |
09/17/2008 | CN101267178A A start method for DC frequency conversion compressor |
09/17/2008 | CN100420145C A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system |
09/17/2008 | CN100420143C Control method and control circuit for brushless DC motor |
09/17/2008 | CN100420130C H-bridge with single lead frame |
09/12/2008 | WO2008109328A1 Brushed motor control with voltage boost for reverse and braking |
09/12/2008 | WO2008022841A3 Method for determining the rotation speed of a starter |
09/11/2008 | US20080219649 Motor drive device and electric apparatus using the same |
09/11/2008 | US20080219648 Circuit and method for controlling the rotating speed of a bldc motor |
09/10/2008 | EP1966881A1 Supply architecture for inductive loads |
09/10/2008 | EP1966879A1 Method and device for operating an electric motor |
09/10/2008 | CN201113877Y Dc motor energy storage device |
09/10/2008 | CN201113876Y Oil pumping machine dedicated multi- power integral energy-saving actuator |
09/10/2008 | CN101263649A Apparatus and process for controlling and adjusting the operation of electric motor actuated devices |