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US Patent 8937817 Lossless commutation during operation of a power converter

Patent 8937817 was granted and assigned to Enphase Energy on January, 2015 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Enphase Energy
Enphase Energy
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
8937817
Patent Inventor Names
Donald Richard Zimmanck0
Martin Fornage0
Date of Patent
January 20, 2015
Patent Application Number
13104829
Date Filed
May 10, 2011
Patent Citations Received
‌
US Patent 11791633 Systems and methods for increasing output current quality, output power, and reliability of grid-interactive inverters
‌
US Patent 11967905 Non-isolated pulse width modulated (PWM) full bridge power converter with interconnected windings
0
Patent Primary Examiner
‌
Jessica Han
Patent abstract

A method for operating a DC-DC converter. The method comprises: matching, based on a turns ratio of a transformer of the DC-DC converter, a primary side capacitance of the DC-DC converter and a secondary side capacitance of the DC-DC converter to result in a matched capacitance; and operating the DC-DC converter with at least one operating parameter set to cause a primary current to oscillate between a peak value and zero such that a valley of the primary current coincides with a zero crossing of a secondary switching element voltage.

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