Thursday, October 17, 2019

Photocell dark switch with 2 wires

This circuit is a 110/220V AC Photocell switch (Dark activated switch) with 2 wires, it turns ON the lamps at the night and turns them OFF at the day time automatically.
The standby state power consumption in this circuit is very low, about 0.05W only, 
But the commercial photocell consume about 1.6W in the standby state. (32 times more)
The circuit working with both 110V & 220V AC and the Max. load can be 4A (LED, CFL & incandescent lamps).


Parts list:
IC 4093
SCR C106M
Bridge diode 8A
Resistor 30K
Resistor 1M
LDR
Zener diode 10V

Circuit:

220V AC Photocell switch (Dark switch)

220V AC Photocell switch (Dark switch)

220V AC Photocell switch (Dark switch)

 
Video: