Published:2011/7/7 21:48:00 Author:Seven | Keyword: electric switch circuit, touch type | From:SeekIC
Here is to introduce an electric switch circuit composed of CMOS digital circuit, which can be used to control the lighting lamp, ventilator and other low power electric apparatus. The electric switch circuit of touch type consists of the power supply circuit, touch control input circuit, single stable trigger circuit, dual stable trigger and control executing circuit, see as the figure.
Element selectionR1~R7 are the 1/4W carbon film resistor or metal film resistor.C1 is the high frequency pottery capacitor; C2 is the Ta electrolytic capacitor or high grade aluminum electrolytic capacitor.
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