A Class-E2 wireless power transfer system with different efficiency curves

Mingyu Liu; Donglai Zhang; Dandan Wang

doi:10.1109/WoW.2017.7959363

A Class-E² wireless power transfer system with different efficiency curves

Mingyu Liu
, Donglai Zhang
, Dandan Wang

Harbin Institute of Technology Shenzhen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Class-E inverters and Class-E rectifiers are combined to compose isolated Class-E² DC/DC converters to transfer power through loosely coupled inductive coils. A design method for this converter is discussed to achieve ZVS (zero-voltage switching) and ZDS (zero-derivative switching). The converter is operated in a fix-frequency and open-loop mode. Load characteristics for this converter are analyzed in graphs including the relations among output voltage, output current and efficiency. High impedance design fitting for light load and load insensitive design fitting for heavy load are introduced to get different efficiency curves, which are suitable for different load probability distribution in different applications.

Original language	English
Title of host publication	2017 IEEE PELS Workshop on Emerging Technologies
Subtitle of host publication	Wireless Power Transfer, WoW 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	48-53
Number of pages	6
ISBN (Electronic)	9781509062584
DOIs	https://doi.org/10.1109/WoW.2017.7959363
State	Published - 26 Jun 2017
Externally published	Yes
Event	2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017 - Chongqing, China Duration: 20 May 2017 → 22 May 2017

Publication series

Name	2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017

Conference

Conference	2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017
Country/Territory	China
City	Chongqing
Period	20/05/17 → 22/05/17

Keywords

Class-E DC/DC Converter
Efficiency Curves
Load Variation Insensitive Design
Load characteristics
Loosely Coupled Inductive Coil
Wireless Power Transfer

Access to Document

10.1109/WoW.2017.7959363

Cite this

Liu, M., Zhang, D., & Wang, D. (2017). A Class-E² wireless power transfer system with different efficiency curves. In 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017 (pp. 48-53). Article 7959363 (2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WoW.2017.7959363

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title = "A Class-E2 wireless power transfer system with different efficiency curves",

abstract = "Class-E inverters and Class-E rectifiers are combined to compose isolated Class-E2 DC/DC converters to transfer power through loosely coupled inductive coils. A design method for this converter is discussed to achieve ZVS (zero-voltage switching) and ZDS (zero-derivative switching). The converter is operated in a fix-frequency and open-loop mode. Load characteristics for this converter are analyzed in graphs including the relations among output voltage, output current and efficiency. High impedance design fitting for light load and load insensitive design fitting for heavy load are introduced to get different efficiency curves, which are suitable for different load probability distribution in different applications.",

keywords = "Class-E DC/DC Converter, Efficiency Curves, Load Variation Insensitive Design, Load characteristics, Loosely Coupled Inductive Coil, Wireless Power Transfer",

author = "Mingyu Liu and Donglai Zhang and Dandan Wang",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017 ; Conference date: 20-05-2017 Through 22-05-2017",

year = "2017",

month = jun,

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doi = "10.1109/WoW.2017.7959363",

language = "英语",

series = "2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Liu, M, Zhang, D & Wang, D 2017, A Class-E² wireless power transfer system with different efficiency curves. in 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017., 7959363, 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017, Institute of Electrical and Electronics Engineers Inc., pp. 48-53, 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017, Chongqing, China, 20/05/17. https://doi.org/10.1109/WoW.2017.7959363

A Class-E² wireless power transfer system with different efficiency curves. / Liu, Mingyu; Zhang, Donglai; Wang, Dandan.
2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 48-53 7959363 (2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Liu M, Zhang D, Wang D. A Class-E² wireless power transfer system with different efficiency curves. In 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 48-53. 7959363. (2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017). doi: 10.1109/WoW.2017.7959363