| 摘要 |
A moisture-sensing circuit for a clothes dryer separates the moisture-sensing and timing functions in a way that minimizes undesirable interaction and reduces effects of tolerances in components, temperature, and supply-voltage. Separate comparators are provided for (1) the resistance of the moisture sensor as compared with a first threshold and (2) the time since occurrence of the most recent moisture signal that exceeded the first threshold, as compared with a second threshold representing a predetermined delay.
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