Three-bit temperature controller circuit

Published:2011/5/17 8:50:00 Author:TaoXi | Keyword: Three-bit, temperature controller | From:SeekIC

Related components PDF download: TCA965 This circuit uses the thermistor RH, it's nonlinear characteristics can be changed into the linear characteristics by R1 and R2. In the three states of the relay control, the window size adjustment depends on the halfway point of the window and the half width. If the input voltage UE is in the window, the circuit is neither heating nor cooling. Otherwise, it should be heating or cooling. The tolerance is the window size or the mediate precision, it is adjusted by the potentiometer RP2. Because there must be the tolerance zone, so the precision may not infinitely improved.



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