Patent ID: 6049187
Filing Date: 2000-04-11
Classification: H02K,H02P

Abstract:
An armature mounted armature speed control system for a brushless repulsion motor of the type including a series of coil switches on said armature for shorting a succession of armature coils and detectors on said armature for operating each of said switches when the armature coil shorted by said switch is at a selected rotational position, said system comprising: a ring counter with sequentially energized output lines for receiving signals in sequence at a rate controlled by the reference frequency of count pules at the input of said counter, means for operating said switches in sequence by said counter created signals to control the speed of said armature at a set point determined by said reference frequency, and a selector switch shiftable upon receipt of a shift signal between a first condition with said signals from said counter operating said coil switches and a second condition with said detectors operating said coil switches.