Using the power switch integrated circuit level one controlled circuit sink type


Posted on Mar 28, 2007

As a result of the power switch integrated circuit A, it has a simple circuit, the sensitivity is high, working and reliable. It belongs to the people filling liquid level auto


Using the power switch integrated circuit level one controlled circuit sink type
Click here to download the full size of the above Circuit.

matic control circuits. When the water level in the following electrode B, A 2 feet low (ov), A is turned on, 4 feet low (Ov), pull the relay KA, KM pull, pump up and running, the water tank water; when the water level rose to electrodes a, a 2 feet high ( 1.5V), a cutoff, KA and KM release, the pump stops irrigation.




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