This paper proposes a control algorithm for solving the unbalanced current of the primary side in an LLC converter that uses a center-tap rectifier on the secondary side in ultra-high definition TV applications. The current imbalance in the LLC converter using a center-tap rectifier causes thermal problems, low efficiency, and uncontrollability. The operational principle, primary side control algorithm, and design equation required to solve these problems are presented. The experimental results are presented to verify the efficiency and thermal improvement of proposed control algorithm.

中文翻译：

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超高清电视中心抽头LLC谐振转换器的设计及电流不平衡控制方法

本文提出了一种控制算法，用于解决在超高清电视应用中在次级侧使用中心抽头整流器的 LLC 转换器中的初级侧不平衡电流。使用中心抽头整流器的 LLC 转换器中的电流不平衡会导致热问题、低效率和不可控性。介绍了解决这些问题所需的工作原理、初级侧控制算法和设计方程。实验结果用于验证所提出的控制算法的效率和热改进。