I have a SMPS that is rated for 100VAC 50/60Hz
I find it suspicious that it has such a narrow operating voltage considering they usually operate over a wide voltage range. I doesn't specifiy any kind of operating voltage window as a normal SMPS would such as 100-127VAC.
I would like to operate it on 120VAC but want to know what you think about the impact of doing so. I relatively sure that plugging it into 120V wont release the magic smoke right away, but was wondering how sensitive SMPS are to voltage input. Are there any components I should be looking at to be sure its not overheating or check to be sure its not drawing too much current?
The power supply is integrated and potted into the device I want to use, so the only other way to power the unit would be to build a buck transformer. It is low enough wattage to do so, but why bother if the SMPS can handle the voltage.
Any thoughts?
UPDATE========
Since I didn't have any replies and was asking while I was work, now I am at home and tried out hooking it up to 120v via a step up transformer. It uses very slightly less current at 120v instead of 100v. drawing .021A at 120v .022A at 100v.
I won't know exactly how much power it uses at operating current until I get it back to the US and try it out. But looking at the standby current it uses looks ok.
Main filter cap rated for 180v so looks like it should be ok. Will see when I get it back to the us and can try it out on 60hz power but it is rated for 50/60Hz operation.
If anyone knows anything I should look out for, please pass the info on.