How can I design AC-LED lamp without using transformer?

[phoeshell]

Now, I am trying ac led lamp. I would like to design that circuit without transformer. Power source is ac 220 V and 50 Hz. Now, I have use resister and capacitor division ckt. Is it ok? Please share your knowledge, everybody.

 

[cameo_2007]

why is the capacitor in this.

A resistor divider should not be a problem.

 

[phoeshell]

Yeah, I use capacitor and resistor in series, but the output is not stable and voltage is high, I would like to get only 6V.

 

[cameo_2007]

what is your circuit, and what are the values used.
upload it here.

 

[IanP]

https://www.turbokeu.com/myprojects/acled.htm
You can replace 1N4148 diode with another LED, so you'll have two leds powered by one circuit ..

Rgds,
IanP

 

[amitjagtap]

The above circuit is designed only for Single LED, Accordingly values of Cand R are caluculated for may be LED forward voltage of 2V and current of 20mA.
You can calculate values of C and R for sevral series and parallel combition of High Flux power LEDs. Again note that C is unpolarized Cap. and R is 1W. Also as LED is ON only for half cycle of AC, it will give flickered light. You can put a full wave rectifire instead of capacitor and adjust the R value accordingly.
Be careful while handling the circuit as it is AC you are playing with..

 

[GrandAlf]

Using a cap is more efficient than just a resistor, less power loss and heat. Needs to be a very good quality cap though.