Brood thermostat circuit diagram

Published:2011/6/9 4:49:00 Author:Lucas | Keyword: Brood thermostat | From:SeekIC

The brood temperature control circuit is composed of the power circuit and temperature detection control circuit, and the circuit is shown as the chart. Power circuit is composed of the power transformer T, bridge rectifier UR, filter capacitors C1, C2, and three-terminal voltage regulator integrated circuit IC1. Temperature detection control circuit is composed of the transistors V1, V2, resistors R1 ~ R3, potentiometer RP, capacitor C3, diode VD, operational amplifier integrated circuit IC2, heater EH and relay Κ. AC 220V voltage bucked by T , rectified by UR, filtered by C1, stabilized by IC1 can provide +6 V power supply for the temperature detection control circuit. R1 ~ R3 select 1/4W carbon film or metal film resistors. C1 and C2 select aluminium electrolytic capacitors with the voltage in 16V.



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