Global to push GA events into
skip to main content

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:
; ; ; ; ;
Issue Date:
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

Other works cited in this record:

Semiconductor device and wireless tag using the same
patent, May 2013

Apparatus For And Method Of Protecting Wireless-Coupled Power Devices From Overvoltage, Overcurrent, And Overtemperature Using Hysteresis
patent-application, November 2012

Wireless Power Overvoltage Protection Circuit With Reduced Power Dissipation
patent-application, March 2014

Wireless Power Transfer System For Wirelessly Transferring Electric Power In Noncontact Manner By Utilizing Resonant Magnetic Field Coupling
patent-application, May 2014

Performing Integrity Checks on Climate Control System Components
patent-application, May 2014

Electronic Component, Power Feeding Device, And Power Feeding System
patent-application, July 2014

Wireless Power Transmission Apparatus For High Efficiency Energy Charging
patent-application, December 2014

Double-Sided LCC Compensation Method For Wireless Power Transfer
patent-application, January 2015

Similar records in DOepatents and OSTI.GOV collections: