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Parallel Power Supply Operation Through the Use of Rectifiers

IP.com Disclosure Number: IPCOM000062142D
Original Publication Date: 1986-Oct-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Clemmons, E Milewski, MS Patterson, BE [+details]

Abstract

A technique is described whereby two or more power supplies are connected in parallel so as to supply current to a single load. Rectifiers are used in such a way so as to isolate the power supplies from each other, enabling any one of the power supplies to be turned on or off without affecting the operation of the remaining power supplies. This concept not only improves the overall reliability of systems connected to the power supplies, but provides the ability of replacing a defective power supply without encountering machine down time. In addition, since each power supply is supplying only a fraction of the load current during normal operation, there is less stress on the components used in the power supplies.