Apparatus for braking a synchronous machine

Apparatus for braking a synchronous machine

Apparatus for controlling a driving motor

Apparatus for controlling deceleration of DC motor

Apparatus for controlling electric cars

Apparatus for controlling motor speed

Apparatus for controlling the synchronous drive for direct-curre

Apparatus for damping rotation of turntable

Apparatus for detecting relative movement

Apparatus for detecting the speed of an electric motor

Apparatus for driving a recording medium at a constant speed rel

Apparatus for feedback of an analog signal used to monitor and/o

Apparatus for measuring the frequency of a pulse-generator and n

Apparatus for regenerating energy from the dynamic interactions

Apparatus for removing torque ripples in a direct current motor

Apparatus for removing torque ripples in direct-current motors

Apparatus for reproducing disc record

Apparatus for synchronization of a motor

Apparatus for varying the speed of DC motors

Arrangement and method for operating a magnetically suspended, e