Brushless repulsion motor speed control system
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United States of America Patent
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-
May 20, 2008
Grant Date -
Nov 23, 2006
app pub date -
May 26, 2006
filing date -
Nov 4, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for controlling the speed of a brushless repulsion motor having a series of switches mounted on a rotating armature for shorting circumferentially spaced armature coils comprising first stationary signaling means and a plurality of rotating detectors for activating said switches; second stationary signaling means for speed control; a plurality of markers on the rotating armature; a speed detector for detecting the speed of the rotating markers and generating a speed feedback signal; means for generating a speed command signal; an error calculator for comparing the speed feedback and speed command signals and generating an error signal; and a controller for controlling the signaling means based on the error signal.
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