Brushless DC tachometer
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United States of America Patent
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-
Dec 31, 1985
Grant Date -
N/A
app pub date -
Jun 14, 1983
filing date -
Jun 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An alternator for use in a brushless DC tachometer which produces are output voltage with a trapezoidal waveshape. The alternator includes a three phase toroidal winding on a plotless core. The windings are concentrated rather than being distributed. The rotor includes high intensity permanent magnets configured to provide uniform flux density over a large segment at least equal to a commutation increment.
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