Sugestion for smps non insulated

[mgarbuli]

Hi all

I need to make a SMPS with this specifications:

Input 50 to 85 Vdc
Output 550 Vdc @ 3,7 A.
non insulated.

I need a topology with low cost, i found the boos topology, but i´m afraid that the ratio input/output do not allow to use it.

Any suggestion?
Sincerelly

Marcelo

 

[MicrosiM]

Hello

I think at that output power, the input current will be very high making this design challenging at some point.

I will look for this

Thanks