Switch wear leveling

Wu, Hunter; Sealy, Kylee; Gilchrist, Aaron

Title: Switch wear leveling

Patent · Tue Sep 01 00:00:00 EDT 2015

OSTI ID:1213442

Wu, Hunter; Sealy, Kylee; Gilchrist, Aaron

An apparatus for switch wear leveling includes a switching module that controls switching for two or more pairs of switches in a switching power converter. The switching module controls switches based on a duty cycle control technique and closes and opens each switch in a switching sequence. The pairs of switches connect to a positive and negative terminal of a DC voltage source. For a first switching sequence a first switch of a pair of switches has a higher switching power loss than a second switch of the pair of switches. The apparatus includes a switch rotation module that changes the switching sequence of the two or more pairs of switches from the first switching sequence to a second switching sequence. The second switch of a pair of switches has a higher switching power loss than the first switch of the pair of switches during the second switching sequence.

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Research Organization:: Utah State University, North Logan, UT (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: EE0003114

Assignee:: Utah State University (North Logan, UT)

Patent Number(s):: 9,123,467

Application Number:: 13/748,074

OSTI ID:: 1213442

Resource Relation:: Patent File Date: 2013 Jan 23

Country of Publication:: United States

Language:: English

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