Liquid level controller circuit diagram 2

Published:2011/8/15 22:14:00 Author:Ecco | Keyword: Liquid level controller | From:SeekIC

The liquid level controller circuit consists of the power supply circuit and level detection control circuit, and it is shown as the chart. Power supply circuit consists of the power transformer T, bridge rectifier UR and filter capacitors C1, C2. Liquid level detection control circuit consists of electrodes A ~ C, four NAND gate IC IC (D1 ~ D4), transistor V, resistors R1 ~ R3, relay K and diode VD. R1 ~ R3 select the 1/4W carbon film resistors or metal film resistors. C1 selects the monolithic capacitor with voltage in 63V: C2 selects the aluminum electrolytic capacitor with voltage in 25V.



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