A Compact Isolated 6.78-MHz Class E2 Converter via Wireless Inductive Coupling

被引：0
|
作者：
Shao, Yaoxia [1 ]
Ma, Chengbin [1 ]
Liu, Ming [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Univ Michigan Shanghai Jiao Tong Univ Joint Inst, Shanghai, Peoples R China
[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
来源：
45TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2019) | 2019年
关键词：
DC-DC power converters; compact; planar; voltage ratio; Class E; isolation;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Compact, isolated DC-DC converters are required in many applications such as communication terminals. This paper presents a compact, planar Class E-2 DC-DC converter via wireless inductive coupling. For high frequency converters working at megahertz (MHz), it is challenging to design the system parameters under the condition of different final loads and voltage ratios. In this paper, a design method is proposed to adjust the voltage ratio of a Class E-2 DC-DC converter without changing the turn ratio of the coils. An experimental 6.78 MHz Class E2 converter system with flexible voltage ratio is built, with the coupling coefficient k=0.33 and overall efficiency above 80%.
引用
收藏
页码：4165 / 4170
页数：6
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