Hey guys,
I have a general question about power supplies. Specifically the ones we use to power anything that runs on DC in our breweries.
With efficiency losses aside, if i have a 5A, 12V power supply, does that mean that the 120VAC powering the supply would need to provide 5A? It seems kind of silly because that would be ridiculous power loss - 5A @ 120 vs 5A @ 12VDC on the output. I guess it would make more sense that the current input would be ~.5A @ 120 to get 60W. I just want to verify.
I have a general question about power supplies. Specifically the ones we use to power anything that runs on DC in our breweries.
With efficiency losses aside, if i have a 5A, 12V power supply, does that mean that the 120VAC powering the supply would need to provide 5A? It seems kind of silly because that would be ridiculous power loss - 5A @ 120 vs 5A @ 12VDC on the output. I guess it would make more sense that the current input would be ~.5A @ 120 to get 60W. I just want to verify.