Fellow members

I guess this is hello.

I'm working on a project to build a variable input (220/120), 12VDC power supply. Something similar to the supplys in say a shaver. I'm looking for a good circuit diagram to base my design on.

I would appreciate if someone could help me with such a request.

I do not wish to use any manual intervention to alternate between 220 VAC and 120 VAC. The circuit should adapt to the input and provide the correct supply.

Thanks

 

hi

will this circuit fit your purpose?

 

Hello,
You have to specify also the maximum current at the output.
There are many tested circuits for 85-275 AC to 12V DC.
I mean DC-DC converters with Tiny Switch and TOP Switch of Power Integrations.

Take a look at their web page
www.powerint.com

Regards