Comparing uninterruptible power supply topologies
These installations’ continuous availability is usually critical to their owners’ survival, so a clean, uninterrupted power supply becomes a business-critical requirement. Under these circumstances, on line UPSs are understandably the most popular choice. They deliver processed, clean power under all conditions and transfer to battery without power interruption if the mains fails. However there are still many applications with less critical requirements; these can benefit from the lower costs of an off line UPS solution. This article therefore compares on line and off line UPS topologies.
Read the full article on page 20 of our July/August digital edition.