A 6.78-MHz Class E2 Converter with the Flexible DC-DC Voltage Ratio

被引：1
|
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：
2019 IEEE 13TH INTERNATIONAL CONFERENCE ON COMPATIBILITY, POWER ELECTRONICS AND POWER ENGINEERING (CPE-POWERENG) | 2019年
关键词：
DC-DC power converters; resonant converters; voltage ratio; Class E;
D O I：
10.1109/CPE.2019.8862379
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
High frequency DC-DC converters working at megahertz (MHz) are promising candidates for making compact, highly efficient converters with galvanic isolation. However, it is challenging when requiring the system design 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 by only changing the capacitors. the experimental 6.78 MHz Class E-2 converter system works with the overall efficiency of 80.1 %, 83.1 % and 83.8% and the DC-DC voltage ratio ranging from 2 to 5. The inductors of the system remain unchanged under different voltage ratios. In addition, a expansion approach is proposed to further increase the system voltage ratio when the input resistance of the coupling coils is already high to the PA.
引用
收藏
页数：5
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