Automatic sprinkler controller circuit diagram 2

Published:2011/6/18 21:54:00 Author:Lucas | Keyword: Automatic , sprinkler controller | From:SeekIC

The automatic sprinkler controller circuit is composed of the power supply circuit, switch control circuit, astable oscillator circuit and control implementation circuit, and the circuit is shown in the chart. Power supply circuit consists of the power switch s1, power transformer T, bridge rectifier UR and filter capacitor C1. Switch control circuit consists of the humidity sensor, sampling tube VI, composite amplifier tubes V2, V3, and power filter control resistors R1 ~ R4. Astable multivibrator consists of the time-base integrated circuit IC and the external RC components. Control implementation circuit is composed of the transistor V4, LEDs VL, thyristor VT, and manual control switch S2 and so on.



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