|
|
|
| Optimal design of zero voltage switch of LLC in full range and full load |
| WU Zhong-min, LIU Wei, LV Zheng-yu |
| College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China |
|
|
|
Abstract In order to achieve zero voltage switch (ZVS) of LLC over the entire input voltage range, and promise full load output, an optimal design method of resonator was presented. Different from the resonant point design method, this method finds the low frequency full output(LF) loaded point, which is the most difficult to achieve ZVS. On the basis of the LF loaded point, this method finds the largest magnetizing inductance to achieve ZVS of full range, and optimizes the entire resonator. Compared with the traditional design method, the optimal method improves the whole efficiency in meeting the requirements of full load output with full range input. The advantage of this method is more obvious in the case of high voltage input.
|
|
Published: 01 December 2014
|
|
|
LLC全范围满载软开关优化设计
为了保证LLC在整个输入电压范围内都能实现零电压开通（ZVS）,并且能够全范围满载输出,提出一种对整个谐振腔的优化设计方法.区别从完全谐振点出发,找出最难实现ZVS的工作点(低频满载点),从该点出发找出既能全范围满载输出,又能全范围实现ZVS的最大励磁电感,再对整个谐振腔进行优化设计.通过与传统设计方法对比表明：本优化设计方法在满足全范围满载输出性能要求的前提下，提高了整个输入电压范围内的效率；该设计方法的优势在高电压输入情况下体现得更加明显.
|
|
| ［1］ YANG B, LEE F C, ZHANG A J, et al. LLC Resonant converter for front end DC/DConversion［C］∥IEEE APEC. Dallas: IEEE, 2002: 1108-1112.
［2］ LU B, LIU W D, LIANG Y, et al. Optimal design methodology for LLC resonant converter［C］∥IEEE APEC. ［S.l.］:IEEE, 2006.
［3］ JUNG J H, KWON J G. Theoretical analysis and optimal design of LLC resonant converter［C］∥IEEE EPE. Aalborg: IEEE, 2007: 110.
［4］ 陈申.宽输入范围隔离升压型DC-DC变换器的研究［D］.杭州：浙江大学,2012.
CHEN Shen. Research of wide input isolated step-up DC-DC converter［Ｄ］. Hangzhou: ZhejiangUniversity, 2012.
［5］ ZHANG X, YOU W, YAO W, et al. An improved design method of LLC resonant converter［C］∥ IEEE Symposium on Industrial Electronics. ［S.l.］: IEEE, 2012: 166170.
［6］ 顾亦磊.集成模块电源拓扑标准化的研究［D］.杭州：浙江大学,2008.
GU Yi-lei. Research of topology standardization for integrated power module［D］. Hangzhou: Zhejiang University, 2008.
［7］ 廖正伟,张雪,尤伟,等.应用于超宽输入范围的变拓扑LLC电路［J］.浙江大学学报：工学版,2013, 47(12): 2073-2079.
LIAO Zheng-wei, ZHANG Xue, YOU Wei, et al. Variable LLC circuit used in ultra-wide input voltage range［J］. Journal of Zhejiang University ：Engineering Science, 2013, 47(12): 2073-2079.
［8］ LIU T, ZHOU Z Y, XIONG A M. A novel precise design method for LLC seriesresonant convertr ［C］∥IEEE Telecommunications Energy Conference. ［S.l.］: IEEE, 2006: 16.
［9］ 马皓,祁丰.一种改进的LLC变换器谐振网络参数设计方法［J］.中国电机工程学报,2008, 28(33): 6-11.
MA Hao, QI Feng. An improved design method for resonant tank parameters of LLC resonant converter［J］. Proceedings of the CSEE, 2008, 28(33): 6-11.
［10］ CHENG R J, YANG Y G, JIANG Y. Design of LLC resonant converter with integrated magnetic technology ［C］∥IEEE ICEMS.［S.l.］: IEEE, 2005: 1351-1355.
［11］ LIN R L, WEN C. Design criteria for resonant tank of LLC DC-DC resonant converter［C］∥IEEE IECON.［S.l.］: IEEE, 2010: 427-432.
［12］ CHOI W S, YOUNG S M, KIM D W. Analysis of MOSFET Failure Modes in LLC Resonant Converter［C］∥ IEEE INTELEC.［S.l.］: IEEE, 2009: 16. |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
