Mini dc-dc supplies simplify redundancy in parallel systems. (uninterruptible power supplies) (includes related articles on weak links that limit UPS reliability and the increase in converter switching frequencies) (technical)

EDN, April, 1988 by Thorsell, Lars

Mini dc/dc supplies simplify redundancy in parallel systems A source of uninterrupted power is increasingly becoming a requirement for computing systems. A total or even partial power failure, and the subsequent loss of data, can be catastrophic for many applications. In such applications, you must address the problem of fault tolerance in your own equipment design. Many of these critical applications rely on uninterruptible power supplies (UPS) to satisfy the requirement of continuous operation. Miniature, on-card dc/dc converters, connected in parallel, provide a highly reliable, redundant power-distribution systems.

Conventional UPS systems, on which many of these critical applications rely, suffer from the reliability limitations of their internal...

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