Thermostat controller for farm

Published:2011/7/25 2:12:00 Author:Ecco | Keyword: Thermostat controller , farm | From:SeekIC

The thermostat circuit for farm is composed of the power supply circuit and constant temperature control circuit, and the circuit is shown in Figure 4-40. Power supply circuit is composed of the power switch S, fuse FU, power transformer T, bridge rectifier UR, filter capacitors Cl, C2, and three-terminal voltage regulator integrated circuit IC. Constant temperature control circuit is composed of the electric contact thermometer Q, relay K, intermediate relay KA, AC contactor KM, electric heater EH and heating indicator light HL. Cl and C2 select the aluminium electrolytic capacitors with the voltage above 35V.



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