Arrangement for function checking of a temperature sensor
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United States of America Patent
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-
Jun 4, 1996
Grant Date -
N/A
app pub date -
Feb 18, 1994
filing date -
Feb 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A temperature sensor arrangement including a temperature sensor having a measuring element formed as a temperature-dependent variable resistor, and an electronic circuit for function checking of the temperature sensor. The electronic circuit includes a temperature-independent test resistor arranged parallel to the measuring element, first and second semiconductor switches arranged in current circuits of the measuring element and the test resistor, respectively, and a control conductor and a voltage converting element for alternatively connecting the two semiconductor switches to an auxiliary input of the temperature sensor.
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