The auto controller circuit of toilet lights and ventilators

Published:2011/6/29 6:12:00 Author:Seven | Keyword: auto controller circuit, toilet lights | From:SeekIC

Working principles The working principles is shown in the figure, which consists of the magnet switch circuit, single steady time delay circuit, light lamp control circuit, ventilator control circuit and power supply circuit, etc. When the toilet is closed, the permanent magnet ZT is near the normally closed reed pipe AG, due to the magnet effect of ZT, the internal touch chip of AC is broken down, and the triode VT is blocked without the bias current, at the moment, the time-based integrated circuit IC1 2-pin is in a high LEV, so IC1 is in a reset state, and 3-pin if IC1 is outputting a low LEV.



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