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| Research and design half-bridge LLC resonant for AC-DC converter |
| Lv Qingsong, Xu Yishen, Ni Zhaolin, Ma Shizhe |
| School of Optoelectronic Science and Engineering, Soochow University, Suzhou, Jiangsu 215006 |
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Abstract With the rapid development of power electronics technology, high efficiency and high power density have become the main development directions of power converters, while traditional PWM power converters use hard switching technology, which has large switching losses and low efficiency. In view of this practical problem and the application requirements for wide-range voltage input, an AC-DC converter with wide voltage input, high power factor and high efficiency is designed by using APFC+LLC+SR topology structure, and a prototype of 200W/24V system is built. The test results show that the prototype power factor can reach 0.98 at 220V/50Hz input, and the average efficiency of the system in the entire load range is over 92%, which verifies the effectiveness of the design scheme and can meet the practical application requirements within a certain range.
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Received: 07 March 2019
Published: 29 September 2019
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| Cite this article: |
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Lv Qingsong,Xu Yishen,Ni Zhaolin等. Research and design half-bridge LLC resonant for AC-DC converter[J]. Electrical Engineering, 2019, 20(10): 35-40.
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http://dqjs.cesmedia.cn/EN/Y2019/V20/I10/35
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[1] 陈晓锋. 大功率LED驱动器的研究与设计[D]. 南京: 南京理工大学, 2013.
[2] 李丹, 张代润, 杨林. 基于软开关技术的单开关LED驱动电路研究[J]. 电气技术, 2017, 18(12): 58-61, 66.
[3] 李惺, 靳丽, 钱跃国, 等. 准谐振反激式开关电源设计[J]. 现代电子技术, 2013(21): 148-151.
[4] 宋英杰, 余岱玲, 刘赟, 等. 双管准谐振同步整流反激变换器的研究[J]. 电工技术, 2018(18): 140-141.
[5] 寇宝泉, 张海林, 张赫, 等. 改进型零电压转换PWM软开关功率变换器的实现机理分析[J]. 电工技术学报, 2017, 32(14): 116-126.
[6] 史永胜, 李利, 田卫东, 等. 宽范围输入高效LLC谐振变换器的研究[J]. 电子器件, 2017, 40(1): 256-261.
[7] 管乐诗, 王懿杰, 王卫, 等. 基于临界模式Boost电路与LLC谐振电路的单级交直变换器[J]. 电工技术学报, 2016, 31(11): 41-50.
[8] 万辉, 张捍东, 黄丹. 有源功率因数校正控制技术现状与发展[J]. 电工电气, 2013(3): 1-6.
[9] 殷刚, 许建平, 陈章勇. 一种高效率无桥双谐振功率因数校正变换器[J]. 电工技术学报, 2017, 32(8): 201-207.
[10] 章治国, 刘俊良, 郭强, 等. 一种单级隔离型软开关功率因数校正变换器[J]. 电工技术学报, 2018, 33(14): 3222-3230.
[11] 俞珊, 徐志望. 基于dsPIC数字控制的240 W AC/DC变换器研制[J]. 电子器件, 2017, 40(5): 1135-1139.
[12] Abdualgader I, Yohana E, Facta M.Design of LLC resonant converter for street lamp based on photo- voltaic power source[C]//2014 The 1st International conference on information technology Computer and Electrical Engineering, 2014: 400-403.
[13] 戈现勉. 高效率LLC谐振变换器研究[D]. 杭州: 浙江大学, 2015.
[14] 叶湖, 周唯逸, 贾文超, 等. LLC半桥谐振变换器参数优化设计与实现[J]. 照明工程学报, 2016, 27(3): 75-78, 86.
[15] GB 17625.1—2012. 电磁兼容-限值-谐波电流发射限值(设备每相输入电流≤16A)[S]. |
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2019, Vol. 20 
