System and method for automatic current limit control
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United States of America Patent
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-
Aug 19, 2008
Grant Date -
Mar 25, 2004
app pub date -
Sep 23, 2002
filing date -
Sep 23, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A motor controller system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A sensor senses AC line voltage. A control circuit controls operation of the solid state switches. The control circuit ramps switch current during a start mode and selectively holds switch current during the start mode if sensed voltage drops below a threshold amount.
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