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1. do you have the transfo with 220vAC primary - 48vAC secondary?
2. or do you want the source to be 220vAC and directly convert it to 48vDC
3. if you have the transfo, whats the secondary current rating
there are lots of schem in the web with that specs.
thks for replying. I dun have a transformer. All I need is to design using protel dxp to convert a 240Vac to 48Vdc. I need 48Vdc because I need to drive up to approximate 10 leds. Each led takes abt 4V. Can you teach me how to design the ac to dc converter??? Thks.