The Soft-Start Analysis of a Full-bridge LLC Converter with Hybrid Control Strategy

被引：0
|
作者：
Ling, Yuesheng [1 ]
Guo, Zongshu [1 ]
Liu, X. [1 ]
机构：
[1] Hebei Univ Technol, Prov Minist Joint Key Lab Electromagnet Field & E, Tianjin, Peoples R China
来源：
2016 IEEE VEHICLE POWER AND PROPULSION CONFERENCE (VPPC) | 2016年
关键词：
LLC resonant converter; soft-start; phase-shift control; pulse frequency modulation; RESONANT CONVERTERS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The current spike in full-bridge LLC resonant converter during start-up may destroy the circuit. Usually, the frequency modulation is used to solve this problem. However the waveform at the start-up is still not good enough. In this paper, a hybrid modulation method of phase-shift and frequency control is employed for the start-up process of LLC converter. By using the phase-shift modulation, the start-up process can be optimized and there is no need to reduce switching frequency. Furthermore, all the MOSFETs can achieve zero-voltage switching (ZVS) easily. Finally, the feasibility of the control method is verified by simulation.
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页数：4
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