EEVblog #504 - UPS Tutorial Teardown

Dave explains the three main methods of Uninterruptible Power Supply design - Offline, Online, and Line Interactive. And then opens an APC 2200XL rack mount UPS to see how well it matches the classic block diagram theory. Will there be any surprises? Schematic: http://eevblog.com/files/apc_smart-ups_su2200_3000.pdf Patent: Method and apparatus for providing battery charging in a backup power system http://www.google.com/patents/US5302858 EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/

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