Fish farming thermostat controller 2

Published:2011/8/8 21:52:00 Author:Ecco | Keyword: Fish farming, thermostat controller | From:SeekIC

The fish farming thermostat controller circuit is composed of the power supply circuit and temperature detection control circuit, and it is shown in Figure 4-23. Power supply circuit is composed of the power transformer T, rectifier diodes VD2, VD3, filter capacitor C2, limiting resistor R3 and power indicator LED VLl. Temperature detection control circuit consists of the thermistor RT, resistors Rl, R2, capacitor Cl, potentiometer RP, time-base integrated circuit IC, heating working indicating light-emitting diode Vm, relay K and diode VDl. Rl-R3 use 1/4W metal film resistors or carbon film resistors.



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