Hi All,
I need a 70w power supply with 3 outputs please suggest me any reference design.

Please find my spec.
inpuy : 85v to 275v
out1: 5v,9A
out2 : 12v,1A
out3 : 5v ,700mA

Please suggest me any reference circuit or guidelines to build the circuit.

 

Sounds like a job for an Atx computer psu, from any junk shop, cheap ready-made.

 

Sounds like a job for an Atx computer psu, from any junk shop, cheap ready-made.

I dint get you

 

He meant, what you asked for is already very easy and inexpensive to find. An ATX power supply from an old, junk computer. Google "ATX power supply".

 

There are hundreds of power supply reference designs on the Texas Instruments website. Below is a link to their industrial power supply designs. Nearby on the website are power supplies for other product areas.

TI Industrial Power Reference Designs