Abstract：A novel zero-voltage-switching (ZVS) phase-shift full-bridge converter with self- regulating auxiliary current is proposed. With a paralleled active auxiliary circuit, this converter can achieve ZVS of lagging-leg switches in full load range. The auxiliary circuit that features simple control of the auxiliary switches has no effect on the main power transferring path. Auxiliary energy stored for ZVS of lagging-leg can be regulated by the load current, which decreases conduction loss of the auxiliary circuit. In this paper, the principle of the proposed converter is discussed in detail and further simplification of the proposed topology is suggested. The design method of key parameters is carefully depicted. Finally, the experimental results from a 1 kW/54V, 100 kHz prototype are presented to confirm the operation, validity, and features of the proposed converter.
陈仲, 刘沙沙, 汪洋, 史良辰. 辅助电流有源调整的新型ZVS全桥变换器[J]. 电工技术学报, 2014, 29(4): 1-9.
Chen Zhong, Liu Shasha, Wang Yang, Shi Liangchen. A New ZVS Full Bridge Converter with Active-Regulating Auxiliary Current. Transactions of China Electrotechnical Society, 2014, 29(4): 1-9.
[1] Sabaté J A, Vlatkovic V, Ridley R B. Design considerations for high-voltage high-power full- bridge zero-voltage-switching PWM converter[C]. Proceedings of IEEE Applied Power Electronics Conference, 1990: 275-284. [2] Mweene L H, Wright C A, Schlecht M F. A 1 kW 500 kHz frontend converter for a distributed power supply system[J]. IEEE Transactions on Power Electronics, 1991, 6(3): 398-407. [3] 陈仲, 陈淼, 季锋, 等. 一种采用新型无源辅助网络的ZVS全桥变换器[J]. 电工技术学报, 2012, 27(11): 146-152. Chen Zhong, Chen Miao, Ji Feng, et al. A novel ZVS full-bridge ZVS converter with auxiliary network[J]. Transactions of China Electrotechnical Society, 2012, 27(11): 146-152. [4] 吴新科, 赵荣祥, 钱照明. 倍流输出电流型输入ZVS全桥变流器磁集成方案[J]. 电工技术学报, 2008, 23(9): 80-85. Wu Xinke, Zhao Rongxiang, Qian Zhaoming. Magnetic integration scheme for current fed ZVS full bridge converter with current doubler rectifier [J]. Transactions of China Electrotechnical Society, 2008, 23(9): 80-85. [5] 陈仲, 张鑫, 季飚, 等. 一种基于变压器串联和新型辅助网络的ZVS移相全桥变换器[J]. 电工技术学报, 2009, 24(12): 95-101. Chen Zhong, Zhang Xin, Ji Biao,et al. A ZVS phase-shifted full-bridge converter with series- connection of transformer and auxiliary network[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 95-101. [6] 赵川红, 徐德鸿, 范海峰, 等. PWM加相移控制的双向DC/DC变换器[J]. 中国电机工程学报, 2003, 23(10): 72-77. Zhao Chuanhong, Xu Dehong, Fan Haifeng, et al. A PWM plus phase-shift control bidirectional DC/DC converter[J]. Proceedings of the CSEE, 2003, 23(10): 72-77. [7] 杜贵平, 黄石生. 60kW级软开关等离子喷涂高效电源研究[J]. 电工技术学报, 2005, 20(4): 94-97. Du Guiping, Huang Shisheng. Study of 60kW plasma spray power supply with soft-switching technology[J]. Transactions of China Electrotechnical Society, 2005, 20(4): 94-97. [8] Hua G, Lee F C, Jovanović M M. An improved full-bridge zero-voltage-switched PWM converter using a saturable inductor[J]. IEEE Transactions on Power Electronics, 1993, 8(4): 530-534. [9] Jain P K, Kang W, Soin H, et al. Analysis and design considerations of a load and line independent zero voltage switching full bridge DC/DC converter topology[J]. IEEE Transactions on Power Electronics, 2002, 17(5): 649-657. [10] 陈仲, 季飚, 石磊, 等. 基于π型无源辅助网络的新型ZVS全桥变换器[J]. 中国电机工程学报, 2010, 30(21): 21-25. Chen Zhong, Ji Biao, Shi Lei, et al. Novel full bridge converter with π type auxiliary network[J]. Proceedings of the CSEE, 2010, 30(21): 21-25. [11] Cho J G, Sabaté J A, Lee F C. Novel full bridge zero-voltage-transition PWM DC/DC converter for high application[C]. Proceedings of IEEE Applied Power Electronics Conference, 1994: 143-149. [12] Zhu Lizhi, Qu Wenlong, Li Fahai. A novel soft- switching full-bridge PWM DC-DC converter with auxiliary resonant commutating network[C]. Proceedings of IEEE Telecommunications Energy Conference, 1996: 692-697. [13] 张欣, 陈武, 阮新波. 一种辅助电流可控的移相全桥零电压开关PWM变换器[J]. 电工技术学报, 2010, 25(3): 81-88. Zhang Xin, Chen Wu, Ruan Xinbo. A novel ZVS PWM phase-shifted full bridge converter with controlled auxiliary circuit[J]. Transactions of China Electrotechnical Society, 2010, 25(3): 81-88. [14] Jang Y, Jovanović M M. A new family of full-bridge ZVS converters[J]. IEEE Transactions on Power Electronics, 2004, 19(3): 701-708. [15] Jang Y, Jovanović M M. A new PWM ZVS full-bridge converter[J]. IEEE Transactions on Power Electronics, 2007, 22(3): 987-993.
2014, Vol. 29 
