Control circuit for single-phase AC motor of dryer
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United States of America Patent
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Mar 5, 2013
Grant Date -
Aug 11, 2011
app pub date -
Sep 8, 2010
filing date -
Feb 9, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A control circuit for a single-phase AC motor of a dryer, including at least an electronic starting circuit including at least a starting control unit, a first drive circuit, and a bidirectional triode thyristor, a second drive circuit, and a mechanical switch K. The bidirectional triode thyristor is serially connected to a starting winding and a starting capacitor of the motor, and connected to an AC input. The starting control unit is connected to a control end of the bidirectional triode thyristor via the first drive circuit. The mechanical switch K is serially connected to an electrical heating wire, and is connected to the AC input. The starting control unit is connected to a control end of the mechanical switch K via the second drive circuit. The first drive circuit and the second drive circuit are interlocked with each other.
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