The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2017
Filed:
Nov. 27, 2013
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
A controller for determining switching phases among switching elements of a power supply system having voltage converters, each comprising a switching element. The controller receives signals indicative of a contribution from each converter to a ripple voltage component of an input current of the converters, and ranks the converters. The controller calculates a switching phase offset that is to be applied for the switching element by: (i) calculating phase offsets of two highest ranked converters that would minimize an input voltage ripple caused by said two highest ranked converters, (ii) calculating a phase offset of a next-highest ranked converter that would minimize an input voltage ripple caused by said next-highest ranked converter and converters ranked higher than said next-highest converter; and (iii) repeating step (ii) for each converter in the ranking. The controller generates output signals defining the calculated switching phase offsets to be applied to the switching elements.