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So, do active PFC PSU really require a pure sine wave UPS?

144HzGamer

Junior Member
Title pretty much says it all, I'm in the market for a UPS, and from what I can tell, active PFC PSU's require a pure sine wave UPS to work properly, but unfortunately, where I live I can't find a single UPS with pure sine wave, just non pure sine wave ones.

Thanks.
 
No they do not. I have several computers with active PFC on a simulated sine wave UPS and they all work fine when the power goes out.

I have read that using pure sine wave results in greater efficiency/lower power draw/easier on the ups/computer, but I have no idea if it's true or not. However, even if it is true, they still work together.
 
No they do not. I have several computers with active PFC on a simulated sine wave UPS and they all work fine when the power goes out.

I have read that using pure sine wave results in greater efficiency/lower power draw/easier on the ups/computer, but I have no idea if it's true or not. However, even if it is true, they still work together.

My experience exactly.

I have heard that it decreases the battery life in the UPS as well; you end replacing them in like 3-4 years instead of 5-10. Dunno though, only been on this type of setup for a year and a half.
 
My experience, too. I've used power supplies with active PFC of several brands from several OEM's with sim'd sine wave UPS's and have yet to have one not function.
 
I have read that some early model power supplies with APFC contained components not rated to handle the very highest voltage peaks of the stepped sinewaves.
 
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