Circuit arrangement for the evaluation of a signal produced by a semiconductor gas sensor
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United States of America Patent
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Feb 12, 1991
Grant Date -
N/A
app pub date -
Nov 30, 1988
filing date -
Apr 2, 1987
priority date (Note) -
Expired
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Abstract
A circuit for the evaluation of a signal produced by a semiconductor gas sensor provides a reliable control for manipulating a recirculated air valve in motor vehicles and their air-conditioning systems and includes a voltage divider connected with an integrator having a time constant bigger than time needed for reaching a peak of noxious gases outside of the motor vehicle.
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