Electronic temperature control circuit on an imported car air conditioners. Operational amplifier Ai, A2 using LM393. Adjustment potentiometer RP. Temperature range can be chan
ged. Adjustment range: Power temperature 6 ~ 18, 3 ~ shutdown temperature 15 C, the temperature difference between the opening stop of 3. Negative temperature coefficient thermistor R. RR03-2 type can be used, 25 resistance is 3k, Q, or MF51 type.