2 ms·

Just looking at a random AC/DC converter (Meanwell EPP-100) the likes of which from it and other brands that I’ve used many of, it specifies 90-264V AC at 47-63

Just looking at a random AC/DC converter (Meanwell EPP-100) the likes of which from it and other brands that I’ve used many of, it specifies 90-264V AC at 47-63 Hz. Interestingly it does also specify 127-370VDC, but nothing on the data sheet specifies that it should be expected to operate with DC input (and that corresponds as a peak value to the RMS AC voltage which is probably what it means). Potentially it could work with a DC input though (since DC will pass a regular bridge rectifier), but it could screw with things like the power factor correction… I’d try it if it was a unit I didn’t mind potentially destroying.

exmadscientist 3y ago
370VDC input capability is common on industrial rated power supplies. It isn't ubiquitous but it isn't a surprise either.
nomel 3y ago
> like the power factor correction If they only assumed AC, and if they used AC coupling for the sine/peak/phase detection, then DC would probably look closer to 0V, and just shut the switching off, right? I can't think of an "easy" way to do it that wouldn't require extra smarts, to handle DC, and everyone knows smarts costs money!