Transformerless power supply

This is a transformerless power supply circuit. it is cheap because the transformer in each power supply is most expensive part.

The output voltage depend on zener diode.

Output current about 160mA. you can increase the output current by increase the capacitor value.

Note: don't touch the circuit when it connect to electricity.

Parts list:
Bridge diode 2A
Zener diode 5v 1W
LED
Capacitor 2.2uF 400v
Capacitor 470uF 100v
Resistor 470k 1W
Resistor 100 ohm 1W
Resistor 220 ohm 1W
Resistor 1k

categories : AC 110v-220v Projects,circuits,Power supply and converter