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The Standby type is the most common and economical type of battery powered UPS system available. With this type of UPS the powered equipment is connected directly to the utility power line without any form of voltage regulation. At the same time the UPS is charging/maintaining its batteries via an AC to DC converter. When the utility power fails, the DC to AC inverter of the UPS will turn on and supply the load with power in a matter of milliseconds.
Many people believe that since the equipment is connected directly to the utility power line it can be easily damaged by a power surge or similar phenomena and the UPS works as nothing more than a short-lived battery so that you can save your files before turning off your computer. That may not be entirely untrue, because a high quality Standby UPS always has a good surge suppression circuit, fuse and also provides more than adequate noise filtration but very low cost/quality products rarely ever feature even the simplest forms of protection. The very high efficiency, simplicity, small size and low cost of the design make it ideal for home and small business users.
This fascinated me, I had no idea there were so many varieties !
I really like these power supplies things KitGuru produce, ive learned so much.
I have always meant to pick up a UPS, just for protection to the computer, rather than for anything hard core.
Honestly, I can’t imagine running any system (house) without UPS. I learned that lesson long time ago the hard way and since then UPS is a must have. Right now running 3: APC SUA2200VA/1980W for primary PC, SUA1500VA/980W for 2nd PC, and another SUA1500 for TV,DVD and all other electronic equipment (including central heating controller/pump). Expensive and heavy piece of equipment but it is worth of every penny/cent/whatever tiny amount of cash :D.
One thing to remember. Never try to save money by buying cheap UPS. Go for APC.
thanks. due to an extraordinarily poor power grid we are dependant upon ups but have found it difficult to choose between them.