multi output off line smps
I am ikram from ismo technology, we need design of multi(4) output off line smps with below specification
3.3V---->3Amps
5v-------->5Amps
12------->1.5Amps
-12V--->100 mili amps
with single transformer
Comments
This PSU Unit will be used in a product, so high stability and low cost is important. Is its possible for you to design based on both criterias.
Thanks & Regards
Ikram Khan
Hi,
Our PI ICs provide a highly integrated solution with very reliable and cost effictive solutions to our customer. We are here to help you if you meet some specific question.
Hi...good day sir, i have attached the design made with power integration software. we need a conformaion, can this be made as a product or need any corrections?
Thanks & Regards
Ikram Khan.S.I,CEO,
ISMO Technolgy.
Hi,
I opened your design, it looks good except one warning shows for the transformer, because the air gap is too long.
You could decrease the size of the transformer, or decrease NS or Kp to make it optimized.
You could also refer to the application note, there is detailed information about how to make this change.
Hope this will help you/
hi....
if possible, please do what ever the correction needed and give me the details, so that i can proceid with manumacturing faster.
Thanks & Regards
Ikram Khan.S.I,CEO,
ISMO Technology.
Hi,
I would strongly encourage you to make the modification as this modification will link to all other changes too. If you have difficuty, please refer to the application note in the followinkg link.
http://www.powerint.com/sites/default/files/product-docs/an47.pdf
Hope this will help.

Hi,
Yes, you can do that using out ICs. You could download our software PI-Expert or PI- Xls to help your design.
Best Regards
Xin Li