Inverter powered PC

Flashgo1 · Aug 15, 2018

I building pc in a big rig. I asked before about invertors and ups and power supply question as a whole.

Now im asking, can a power supply take sin wave power with no bad stuff happening.

300 watt invertor connected directly to batteries. 450 watt semi modular power supply. current estimated total power draw. 195watts

grimfox · Aug 15, 2018

I can't say for certain since I haven't done this myself. But the general rule of thumb for a UPS (which is just a specialized inverter) is that it should be between 125% and 200% the size of your power supply. This had to do with the inrush current and the APFC of many power supplies. So Ideally you'd want a 550W-1000W inverter. Or a smaller power supply.

There are some special power supplies that are designed to work in automotive environments. They run off a 12V input. The one I'm thinking of can do up to 250W. That would be far more efficient than running an inverter in the mix, thus giving you a longer run time. Although since you are probably already running other electrical systems off an inverter then it's not saving you a whole lot to ditch the inverter.

http://www.mini-box.com/M4-ATX

Flashgo1 · Aug 15, 2018

you missed my question. can a power supply work with sine wave inverters

jsmithepa · Aug 15, 2018

If you plug this puppy to the wall directly, SINE WAVE is what u gonna get. There is no difference for a sine wave delivered by local utility than sine wave delivered by an inverter.

(My bad habit, am sorry I cannot give a yes and no answer, I must explain things)

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