Apparatus and method for controlling the rotation speed of elect
Apparatus for controlling a vehicle fuel pump
Automatic speed servo-control apparatus for electrically powered
Automotive fan controller
Brushless DC ring motor cooling system
Circuit arrangement for power supply of a fan and/or battery by
Coil load driving circuit and optical disc device
Control device for diaphragm pump
Control for battery powered tool
Control motor integrated with a direct current motor and a speed
DC brushless fan motor driving circuit
DC fan speed control
DC motor
DC motor and controlling system therefor
DC motor and controlling system therefor
DC motor control circuit providing variable speed operation
Dial speed control for hand-held power tool
Digital control for revolving speed of DC motor
Direct current motor speed control apparatus
Electric switch system for a power tool