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Searching for an active PFC-compatible UPS

post #1 of 6
Thread Starter 
So apparently it's true that most UPSes don't work with active PFC power supplies for some reason?

The time of year has come when my family must put in the window air conditioners and I was looking to get something to protect my PC from the power fluctuations that will inevitably be caused.

I was looking at this:

http://www.newegg.com/Product/Produc...-133-_-Product

Would something like that be suitable to keep a stable voltage? Any other recommendations?
post #2 of 6
If you have a good PSU (which you do), the integrated transient filtering stage makes a UPS pretty useless. If you really were having issues, a simple line regulator would be enough unless you need the battery backup on top.
post #3 of 6
Thread Starter 
Quote:
Originally Posted by Shub View Post
If you have a good PSU (which you do), the integrated transient filtering stage makes a UPS pretty useless. If you really were having issues, a simple line regulator would be enough unless you need the battery backup on top.
What's transient filtering exactly? It could compensate for 2 window ACs on the same circuit? Yeah, the power outage shortage isn't really the concern here.
post #4 of 6
What size psu do you have. Easy way to do it get one with a va rating 2x your power output or you can use the psu size.
post #5 of 6
Quote:
Originally Posted by TrueOptic View Post
What's transient filtering exactly? It could compensate for 2 window ACs on the same circuit? Yeah, the power outage shortage isn't really the concern here.
The transient filtering stage and the active PFC circuitry feature components that help deal with power fluctuations, small brownouts and voltage spikes, the kind that window AC units generate. A good PSU will have all those components. You know when your AC unit starts and your light fixtures dim for a split second then come back up? Yet your computer does not flinch? That's because of that circuitry. If you were to get a UPS or a simple line regulator, that device would deal with it rather than your PSU.
That being said, I'm not knowledgeable enough about electricity to tell you how big of a brownout a PSU can handle versus a UPS, or if there's even any difference.
post #6 of 6
Quote:
Originally Posted by Shub View Post
The transient filtering stage and the active PFC circuitry feature components that help deal with power fluctuations, small brownouts and voltage spikes, the kind that window AC units generate. A good PSU will have all those components. You know when your AC unit starts and your light fixtures dim for a split second then come back up? Yet your computer does not flinch? That's because of that circuitry. If you were to get a UPS or a simple line regulator, that device would deal with it rather than your PSU.
That being said, I'm not knowledgeable enough about electricity to tell you how big of a brownout a PSU can handle versus a UPS, or if there's even any difference.
a ups first job is for battery backup.
2nd job filtering. Don't buy them just for its 2nd job.
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