Semiconductor device control apparatus and method

Servo circuit for magnetic disk apparatus

Sewing machine of a sewing machine by wireless controller

Speed control apparatus for electric motor

Speed control apparatus for movable equipment

Speed control circuit for a DC motor

Speed control device for an electric sewing machine

Speed control device for d-c motors

Speed control for brushless DC motors

Speed control system for repulsion motor

Speed control unit for direct current electric motor with intrin

Speed controller

Speed controller of motor

Speed monitoring and control for a brushless motor

Switching current regulator for motor control

Synthesis of drive systems of infinite disturbance rejection rat

Synthesis of improved zero-impedance converter

Synthesis of load-independent DC drive system

System and method for controlling the speed of an electric motor

System for controlling energy output of combustion-powered, fast