Overvoltage protection system for wireless power transfer systems

Title: Overvoltage protection system for wireless power transfer systems

A wireless power transfer overvoltage protection system is provided. The system includes a resonant receiving circuit. The resonant receiving circuit includes an inductor, a resonant capacitor and a first switching device. The first switching device is connected the ends of the inductor. The first switching device has a first state in which the ends of the inductor are electrically coupled to each other through the first switching device, and a second state in which the inductor and resonant capacitor are capable of resonating. The system further includes a control module configured to control the first switching device to switching between the first state and the second state when the resonant receiving circuit is charging a load and a preset condition is satisfied and otherwise, the first switching device is maintained in the first state.

Inventors:: Chambon, Paul H.; Jones, Perry T.; Miller, John M.; Onar, Omer C.; Tang, Lixin; White, Clifford P.

Issue Date:: 2017-05-02

OSTI Identifier:: 1354792

Assignee:: UT-BATTELLE, LLC ORNL

Patent Number(s):: 9,640,976

Application Number:: 14/631,903

Contract Number:: AC05-00OR22725

Resource Relation:: Patent File Date: 2015 Feb 26

Research Org:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION

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