Constant speed regulator for DC motors
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United States of America Patent
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-
Jun 14, 1983
Grant Date -
N/A
app pub date -
May 15, 1980
filing date -
May 15, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric motor is supplied a voltage from a control circuit. The control circuit is powered by an AC to DC rectifier having a shunt capacity. An increase in motor load will result in lower speed and an increase in current. This causes an increase in AC ripple across the shunt capacitor. The control circuit is responsive to the AC ripple and increases voltage to the motor so that the speed set before the application of load is again attained.
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