Over-voltage protection coil control circuit
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United States of America Patent
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N/A
Issued Date -
Mar 3, 2005
app pub date -
Aug 27, 2003
filing date -
Aug 27, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An over-voltage protection coil control circuit has at least one coil driving circuit, wherein an over-voltage protection circuit is connected to the at least one coil driver circuit. The at least one coil driver circuit consists of a transistor. The over-voltage protection circuit is composed of a Zener diode connected to a power supply and the at least one coil driver circuit. When the coil generates a high inverse emf (electromotive force) due to the inversion of its polarity, the Zener diode conducts and guides the high voltage inverse emf to the power supply.
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