Agricultural irrigation controller circuit diagram 2

Published:2011/6/16 3:36:00 Author:Lucas | Keyword: Agricultural , irrigation controller | From:SeekIC

The agricultural irrigation controller circuit is composed of the power circuit, water level detection control circuit and control implementation circuit, and the circuit is shown as the chart. The power supply circuit is composed of the step-down capacitor C1, discharge resistor RI, rectifier diodes VD1, VD2, voltage regulator diode VS and filter capacitor C2. Water level detection control circuit is composed of the water level detection electrodes a, b, resistors R2 ~ R4, electronic integrated circuit and opto-coupler switch VLC. R1 selects 1/2W metal film resistor; R2 ~ R5 select l/4W metal film resistors or carbon film resistors.



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