Temperature control system
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United States of America Patent
Stats
-
Sep 18, 1984
Grant Date -
N/A
app pub date -
Jun 8, 1982
filing date -
Jun 11, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A temperature control system is disclosed wherein a heater of a gas sensor and a plurality of reference resistors cooperate to form a bridge circuit. The temperature control system comprises a comparator means for monitoring a balancing voltage of the bridge circuit and generating a control signal indicative of the balancing voltage and an electric power amplifier means responsive to the control signal for varying a voltage applied to the bridge circuit in such a manner to reduce the balancing voltage. The gas sensor has mounted therein at least one of the plurality of reference resistors, which reference resistor having a resistance resulting from multiplying the resistance of the heater with a constant.
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