Liquid level automatic controller circuit diagram 3

Published:2011/8/4 2:23:00 Author:Ecco | Keyword: Liquid level , automatic controller | From:SeekIC

The liquid level automatic controller circuit is composed of the power supply circuit, level detection circuit and control implementation circuit, and it is shown as the chart. Power supply circuit is composed of the power transformer T, rectifier diodes YD1 ~ VD4 and filter capacitor C. Level detection circuit is composed of the high level electrode A, low level electrode B and the main electrode C. Control implementation circuit consists of the relay K, control transistor V and AC contactor KM. R1 and R2 select 1/4W carbon film resistors. C select the aluminum electrolytic capacitor with voltage in 16V. VD1 ~ VD5 use 1N4001 or 1N4007 silicon rectifier diodes.



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