Power supply with dual asymmetrical inputs

Patent metadata

Field	Value
Publication number	US-8963371-B2
Application number	US-201113189242-A
Country	US
Kind code	B2
Filing date	Jul 22, 2011
Priority date	Jul 22, 2011
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A dual asymmetric input power supply architecture for use in power systems employing input power source redundancy. The dual asymmetric input power supply operates from a main input of the power supply when acceptable voltage is present on the main input. If the main input fails or is out of tolerance, power can be supplied from an auxiliary input through a transformer isolated switching converter. The dual asymmetric input power supply architecture maintains the high efficiency of a single-input power supply while providing an auxiliary connection for input power source redundancy.

First claim

What is claimed is:

1. A power system, comprising:
first and second power converters, each comprising:
a primary power input;
an auxiliary power input;
a power converter output;
a rectifier coupled to the primary power input that provides a rectified voltage at a rectifier output;
a converter circuit coupled to the rectifier output that receives the rectified voltage and provides output power at the power converter output; and
an isolated switching converter circuit cou…

Assignees

• Kinnard J Rothe
• Oracle Int Corp

Inventors

• Kinnard J Rothe

Classifications

• H02J9/061 Primary

  Electricity · mapped topic

• G06F1/263

  Physics · mapped topic