Friday, December 27, 2019

Dimmer With Touch Switch Without Arduino or any Microcontroller

This circuit is a Dimmer With Touch Switch Without Arduino or any Microcontroller.
I just using two ICs (LM324 and CA3130).  The output is PWM signal and its duty cycle can be adjusted by two touch pads from 0% to 100%.
Interesting thing in this circuit that the duty cycle remain the same even after turns OFF and ON the supply voltage.
I explained it in my YouTube channel here: 

Dimmer With Touch Switch Without Arduino or any Microcontroller

Parts list:
CA3130 or CA3140
LM324
Mosfet IRFZ44n
Mosfet Heatsink
Capacitor 100nF
Capacitor 220uF
Capacitor 1uF MKH
Capacitor 47pF
Capacitor 47nF
Zener Diode 5.1V
Resistor 100K (2pcs)
Resistor 20K (2pcs)
Resistor 1.5M (2pcs)
Resistor 3K
Resistor  6.8K
Resistor 510R
Resistor 51K


Circuit:

Dimmer With Touch Switch Without Arduino or any Microcontroller



 Video: