I want to add a low power uP and a few other components to a board that is plugging directly into the wall. The unit already has a bridge rectifier set up so there is ~160 DC available on the board. And I need to convert that to <100mA at 12V output to run the logic I want to add. I have found one solution,a EHD-RD3323 from panasonic that has very minimal board space but costs $7 which way more than the total cost of everything else on the board. The other solutions I can think of require adding larger transformers. So I was wondering if anyone has a small egligent solution to getting a low power DC source from rectified AC???
THANKS
THANKS