Need reference design of a 5V 80W to 100W DC SMPS

[roomi]

Can anybody give me a reference design of a flyback 5V 18A or more DC supply with 115V AC input ?

Normally chip manufacturer put reference design in their site, but the maximum I got is DER-245 from Power Intigration site which is 50W.

 

[JMFahey]

You can buy a PC supply for peanuts.
Just use the 5V output and ignore the others.
Any one will do.

Just as an example of a $15 one:
LOGISYS Computer PS480D2 480W ATX12V Power Supply - Newegg.com
Output
+3.3V@28A, +5V@36A, +12V@16A, -5V@0.5A, -12V@0.8A, +5VSB@2.0A

 

[roomi]

Thanks JMFahey for the response. I thought about that before.

Actually I need more smaller size and want to use only the flyback conversion.