This simple touch ON/OFF circuit is designed using CD4011 IC. The normal flip-flop flop, process is happening here. The pin number 9 and the pin number 13 is the signal receiving pins. The presence of the touch of your finger decides it set and reset Contacts.
Touch ON/OFF circuit diagram
The CD4011 is a CMOS ic, this integrated circuit needs only less current for controlling its gate. The CD4011 (Pin) number 9 and (Pin) number 13 is connected to the positive supply, using R1 and R2. The R1 and R2 rating is about 10 million ohms.
When finger comes contact with the A and B section, this will initiate a small current passage through your fingers and the relay turned on. The same process is happening when you touch C and D section the relay turn off. Any home appliance is connecting to the relay Circuit to operated without a mechanical switch.Â
