Power Cycle Modulation Control of LLC Resonant Converters for Wide Voltage Gain Range Applications

被引：0
|
作者：
Chen, Yang [1 ]
He, Binghui [1 ]
Liu, Wenbo [1 ]
Sheng, Bo [1 ]
Liu, Yan-Fei [1 ]
Sen, Paresh C. [1 ]
机构：
[1] Queens Univ, Dept Elect & Comp Engn, Kingston, ON, Canada
来源：
2022 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC | 2022年
关键词：
Power Cycle Modulation; LLC converter; wide input; wide output;
D O I：
10.1109/APEC43599.2022.9773581
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：
This paper proposes Power Cycle Modulation (PCM) control method of LLC converters for wide voltage gain range applications. Instead of switching frequency modulation, the proposed PCM method operates the LLC converter according to a control period comprising an on cycle operation mode for a duration Ton and an off cycle operation mode for a duration Toff. Ton, Toff and the optimal switching frequency during Ton are adjusted based on the sensed input and output voltages. Optimal switching pulse pattern can be maintained under the low output voltage and high input voltage conditions, which ensures the high efficiency. A 65W prototype is built to verify the feasibility and validity of the proposed control method.
引用
收藏
页码：1780 / 1786
页数：7
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