Apparatus for driving electromagnetic actuator
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United States of America Patent
Stats
-
Apr 4, 1995
Grant Date -
N/A
app pub date -
Dec 4, 1992
filing date -
Dec 10, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A counter electromotive force due to electromagnetic induction is generated on interruption of a current if an actuator 10 is in a normal state. An output signal generated by the counter electromotive force and a pulse signal which is generated from the fall of an input signal applied to the electronic switch are applied to an AND logical circuit 90 to determine whether or not the actuator is defective.
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