Make 220v LED Bulb Circuit (transformerless Power Supply)

Hello, I'm Aabhishek Sharma, the circuit I'm showing explains how to power LEDs from 220v ac source without using transformer. The same concept is used in our modern LED lamps, lights.

Step 1: Warning

The application when operating on 220v ac is not advised to touch you might get a shock or even serious injury. So take all safety measures and do this only if you have some experience in electronics.

Step 2: Materials:

1.1M resistor 1pcs
2.10ohm 1w 2pcs
3.PCB board, general purpose PCB. 1pcs
4.LEDs 1W, upto 20 you can
5.Capacitor 100uf 50v
6.4.7uf 250v
7.capacitor 2.2uf 400v, polyester nonpolar capacitor.

Step 3: Circuit Diagram & Working

Working :
When electricity enters through the 2.2uf, 400v capacitor to the circuit its lowered with respect to voltage as ac Can pass through capacitor but with some loses, the bridge rectifier does the rectification, the further two 4.7uf250v capacitors along with 10ohm 1w resistance acts as filter and stabilizers for output and the last 100uf 50v capacitor provides output for LEDs. Follow up the circuit diagram, make sure you use 1w LEDs, upto 20-30 LEDs you can add,. Add LEDs only in series connection with each other, parallel with not work good. Follow up the link to understand the circuit working and YOUTUBE video

Step 4: Video



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    6 Discussions


    4 months ago

    hello . great regards . what can i to change LED's quantity. such as 2time or 4time more.
    its mean to use 40 or 80 leds or more . what can i do this work? please request me. thanks

    Aabhishek SharmaDrMake

    Reply 1 year ago WhatsApp group for electronics projects and discussion

    Aabhishek SharmaDrMake

    Reply 1 year ago

    Yes, it is,but the video I shown is for high power 3 to 5w LEDs, and not suitable for use with 200ma LEDs and with more surge protection.

    Aabhishek Sharma

    1 year ago my new video, making a simple touch sensor circuit, touch sensitive switch using NPN.

    Aabhishek Sharma

    1 year ago for YouTube video refer to this link.