Driving and braking system for electric motors
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United States of America Patent
Stats
-
Dec 18, 1984
Grant Date -
N/A
app pub date -
Oct 14, 1983
filing date -
Oct 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A driving and braking system having solid state switches for use with an electric motor. A first switch in series with a motor armature carries current from a power supply to the motor during the driving operation. A second switch couples a voltage from the motor armature to the first switch to render the first switch nonconductive and place the motor in a braking mode in response to a braking signal. The first switch provides armature current and couples a voltage from the motor armature to the second switch to render the second switch nonconductive and place the motor in a driving mode in response to a driving signal. The motor can be switched between the braking mode and the driving mode without bringing the motor to a stop.
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