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Re: [EVDL] Isolate 48V from traction pack

Michaela Merz wrote:
> Hello,
> I need isolated 48 V / 10 A from my traction pack (144V). How hard is it
> to develop a dc-dc converter that would achieve that? Or is there any
> other way?

48v is a common voltage in the Telco (telephone) industry, so there are
many off-the-shelf power supplies that deliver this voltage.

A 144v pack is a little low, but most switching supplies designed for
120vac will work acceptably on 144vdc. You just have to be sure you get
one that does not use a voltage doubler on the input, as these won't
work on DC. Supplies with a voltage doubler are usually marked
"120/240vac" and have a jumper or switch or something to switch between

Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
Lee A. Hart, 814 8th Ave N, Sartell MN 56377,

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