Have anybody here tried feeding PSU with DC? According to theory, it should work without problems, found a few guys here and there mentioning who supposedly tried some types of SMPS on DC output.
The problem with older/todays cheaper UPSes is that their output has nothing in common with sine wave and PSUs with active boost PFC do not like that at all. But by just rectifying it (and maybe with some bulk capacitor) it should be just fine, no? The input filtering should not care and than there is rectifying bridge anyway. Only drawback from this is that only two diodes in the PSUs bridge would be conducting all the time, but they should handle the stress…
The problem with older/todays cheaper UPSes is that their output has nothing in common with sine wave and PSUs with active boost PFC do not like that at all. But by just rectifying it (and maybe with some bulk capacitor) it should be just fine, no? The input filtering should not care and than there is rectifying bridge anyway. Only drawback from this is that only two diodes in the PSUs bridge would be conducting all the time, but they should handle the stress…
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