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Reply to "Seen this before? MTH LED Full Vista Dome 20-64071"

No way that's going to happen Stan, I think with 55 VAC on the rails, you'd not have to worry about lighting the cars!

Same comment, 55 VAC is the minimum input voltage.

I was coming at it from another angle.  That is, for AC-to-DC conversion in rolling stock the low-voltage module I posted above works fine at 18V AC input...converts to 5V DC, 12V DC, or whatever DC voltage as needed in the rolling stock.  But that module is $3 or more and arguably a bit bulky...and still requires the DCS 22uH inductor, and, and, and...

It is also a non-isolated converter where the DC output "minus" cannot be tied to the chassis/frame which is typically electrically connected to outer-rail AC common.  This can have implications in some rolling stock applications.  Hence, I was curious if the isolated feature of the 55V AC converter was the basis for the question.

And, I suspect for every low-voltage AC-to-DC converter module made, a million or more 120V AC  converter module are made which goes to cost.  There would/could be a separate discussion on how to modify an inexpensive 55V AC converter to operate at 18V AC.  But I see that is not the issue...

Last edited by stan2004
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