25-30W Isolated DC/DC

This question is not answered

on Jan 05 2013 03:33 AM

I'm looking for some reference designs for a 18-60VDC in, 5VDC out, 25-30W isolated DC/DC converter. I could find some designs that work from 36-72VDC input. E.g., LM5030's EVM AN-1305 LM5030 Evaluation Board. I'm not sure whether the same can be extended to my requirement. Any inputs in this regard would be of help.

Thanks

All Replies

Posted by Terry Allinder

on Jan 07 2013 10:52 AM

Intellectual1810 points

Krishnan,

The LM5030 Evaluation board was design to operate over the standard Telecom input voltage range which is 36-72Vdc. Yes you could modify the design to work from 18-60Vdc, this would require you to change the transformer turns ratio, possibly the current sense resistor, the output feedback divider network, and feedback compensation network.

Terry

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