Automatic sprinkler controller circuit diagram 6

Published:2011/6/18 22:04:00 Author:Lucas | Keyword: Automatic, sprinkler controller | From:SeekIC

The automatic sprinkler controller circuit is composed of the power supply circuit and humidity detection control circuit, and the circuit is shown in the chart. Power supply circuit is composed of the power transformer T, bridge rectifier UR, isolation diode VD2, zener diode VS and filter capacitors C1, C2 and so on. Humidity detection control circuit consists of the humidity sensor, the transistors V1 ~ V3, resistors R1 ~ R5, diode VDI and relay K. RI, R3 ~ R5 select l/4W carbon film resistors; R2 uses sealed variable resistor. C1 and C2 select the aluminum electrolytic capacitors with the voltage in 16V. VD1 uses the IN4007 silicon rectifier diode; VD2 uses the lN5401 silicon rectifier diode.



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