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Need Help for DC-DC. Input Range 50-175vdc

Sougata Das
Prodigy 60 points

Hi All,

I need a topology/device advice for a DC-DC Converter,  to be used in harsh industrial environment with the following spec:

  1. Input 50V DC to 175V DC
  2. Isolated Output 1 : 110VDC - 3Amps - Peak 4.5Amps (A number of 110V DC Contactor Coils as load)
  3. Isolated Output 2 : 24V DC / 2Amps Max

The load is varying in nature and may vary from 10% to 100%. Key concerns are efficiency, robustness, board-space.

I am basically a programmer with exposure in power electronics and would always consider myself a SMPS newbie, so I need pointers before proceeding.

Regards

Sougata