Capacitor touch activated switching system

摘要: A touch sensitive system comprising a clock (30) for generating clocking signal supplied to plurality of circuits each including one the plates (12, 14, 15, 16, 17) varying capacitance value depending upon whether or not plate is touched untouched. The change in circuit varies time duration generated output that circuit. flipflop (18, 19, 20, 21, 22) receives reference from (61) and associated supplies an terminal (24, 25, 26, 27, 28) digital indicating which are touched.