Bistable contactor drive circuit
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United States of America Patent
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Dec 28, 2010
Issued Date -
N/A
app pub date -
Jan 6, 2006
filing date -
Jan 8, 2005
priority date (Note) -
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Abstract
A bistable contactor drive circuit includes a series branch comprising a first relay coil and a control signal source is connected to a power supply. A third normally closed contact and an eighth normally opened contact of the first relay are connected to a positive electrode of the power supply. A first normally opened contact and a sixth normally closed contact are connected to a negative electrode of the power supply, a second movable contact is connected to a positive electrode of the bistable contactor coil, and a seventh movable contact thereof is connected to a seventh movable contact of a second relay. A negative electrode of the bistable contactor coil is connected to a second movable contact of the second relay. Other connections in the circuit provide for operation of the bistable contactor drive circuit.
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