The electric switch circuit of touch type (4)

Published:2011/7/4 4:28:00 Author:Seven | Keyword: electric switch circuit, touch type | From:SeekIC

The following is to introduce an electric switch circuit of touch type which is made of 555 time-based integrated circuit, it characterizes convenient operation(by touching), delaying the auto shut-off and so on, which can be used to control the kitchen ventilator, toilet ventilator and lamps in the stairway, corridor and other place. This electric switch circuit of touch type consists of the touch electrode pole chip A, the time-based integrated circuit IE, the capacitors E1 and C2, the resistance R1 and R2, relay K and so on. By adjusting the volume of C1, the sensitivity of the single stable trigger can be changed.



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