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JSSC 2022第6期Power ManagementBoost Converter

A High Conversion Ratio and 974 High Efficiency Three-Switch Boost Converter With

提出一种三开关升压转换器,用于MiniLED面板,具有高转换比和高效率。
转换比=7.5, 驱动电流=1.2A, 效率=97.4%
三开关升压转换器MiniLED面板高转换比高效率RHP零点
采用三开关结构实现高转换比
通过动态调整RHP零点位置减少恢复时间
充电时间随占空比增加而增加
Abstract
This article presents a three-switch (3S) boost con- verter with hysteresis current control applied in MiniLED panels. It uses only three power switches to achieve high conversion ratio (=7.5) and low inductor current (20% lower than conventional boost converters). Meanwhile, the charging time of the flying capacitor will increase as the duty cycle increases. It enables the proposed 3S boost converter to have a high drive current (=1.2 A). In addition, the right half-plane (RHP) zero of the propo