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:
Apr. 04, 2017
Filed:
Nov. 25, 2015
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Jonathan D. Hoffman, Milwaukee, WI (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
An improved system and method for controlling multiple, paralleled switching devices in a switching power supply is disclosed. The switching device includes parallel legs between voltage rails on the input where each leg is connected to a common output. Each leg may have a single switching device or pairs of switching devices. According to one embodiment of the invention, the switching device(s) for each leg is enabled during one carrier period and the leg having switching devices enabled is alternated during subsequent carrier periods. According to another embodiment of the invention, the switching device(s) for each leg are enabled during each carrier period; however, the switching device(s) for one leg are enabled within the carrier period prior to the switching device(s) for the other legs and the first leg to be enabled is alternated during successive carrier periods.