Three temperature switch circuits

  
Electronic temperature control circuit on an imported car air conditioners. Operational amplifier Ai, A2 using LM393. Adjustment potentiometer RP. Temperature range can be chan
Three temperature switch circuits - schematic

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.




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