A 300-Watt Half-Bridge LLC Resonant Converter Design With Synchronous Rectification

2020 IEEE 12th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM) Pub Date : 2020-12-03 DOI:10.1109/HNICEM51456.2020.9400006

Jeric D. Barcena, Bryan Christian dC. Alejos, Jun U. Cruz, Jesus M. Martinez, Flordeliza L. Valiente, A. Ballado

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Abstract

The design of 300 watts LLC half-bridge resonant converter operating within an input range of 350 Vdc to 460 Vdc and output of 48–50 Vdc with the implementation of synchronous rectifier on the secondary side is presented. The design procedure and mathematical computation are likewise incorporated. Simulation result shows that the converter achieves the desired output with the ripple and noise voltage contained below 500mV pk–pk.The simulation for the frequency response also yielded an output of a gain margin of –18dB and a phase margin of 48 degrees which complies with the stability requirements. Likewise, the design achieves zero-volt switching and can fulfill the 20ms holdup time requirement. Meanwhile, the selection of components helps the design to achieve an efficiency of 97.30% at full load and further evaluated to meet the requirements of 80 Plus Gold Efficiency Standard.

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同步整流的300瓦半桥LLC谐振变换器设计

介绍了一种300瓦LLC半桥谐振变换器的设计，其工作范围为输入350 ~ 460 Vdc，输出48 ~ 50 Vdc，二次侧采用同步整流器。设计程序和数学计算也同样被纳入。仿真结果表明，该变换器在纹波电压和噪声电压控制在500mV pk-pk以下的情况下达到了预期输出。频率响应的仿真也产生了增益裕度为-18dB和相位裕度为48度的输出，符合稳定性要求。同样，该设计实现了零伏开关，可以满足20ms的保持时间要求。同时，通过对元器件的选择，使设计达到97.30%的满负荷效率，并进一步评估达到80 Plus金效率标准的要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2020 IEEE 12th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM)

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