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author:

Huang, X. (Huang, X..) [1] | Chen, W. (Chen, W..) [2] | Chen, Q. (Chen, Q..) [3]

Indexed by:

Scopus PKU CSCD

Abstract:

For the problems with traditional class E inverters, such as higher inductor losses, more sensitive to the resonant parameters and lower power limitation, a novel topology with dual (or even) class E inverters and power combination for wireless power transfer (WPT) applications was proposed. Coupled inductors were proposed to suppress the even-order harmonics currents and reduce loaded quality factor, so that the inverters can still work normally and high efficiently even with large deviations of resonant parameters. And magnetic integration of coupled inductors was proposed to reduce the numbers and losses of the magnetics. Series-series resonance compensation scheme was used for WPT system and π-type (CLC) transconductance was used to ensure the constant output voltage and independence of voltage gain to the loads. A prototype with 1MHz operation frequency was designed and built to verify the feasibility and high performances of the proposed topology and to show that the voltage gain characteristics are independent with the loads and soft switching could be achieved at whole load ranges. The peak efficiency of the inverter reaches 92%. © 2015 Chinese Society for Electrical Engineering.

Keyword:

Class E inverter; Coupling inductor; Loaded quality factor; Resonant coupling; Wireless power transfer (WPT)

Community:

  • [ 1 ] [Huang, X.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian Province 350108, China
  • [ 2 ] [Chen, W.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian Province 350108, China
  • [ 3 ] [Chen, Q.]College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, Fujian Province 350108, China

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Source :

Proceedings of the Chinese Society of Electrical Engineering

ISSN: 0258-8013

Year: 2015

Issue: 21

Volume: 35

Page: 5577-5584

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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