⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出一种12V输入、1-1.8V输出的混合DC-DC转换器，采用电荷汇聚（Charge Converging）技术，实现了94.7%峰值效率和685A/cm³超高电流密度，解决了大电压转换比下传统buck转换器效率低和电感体积大的问题。
Large voltage-conversion-ratio (VCR) DC-DC converters (e.g. 12V to 1-to-1.8V) with high efficiency and high current density are essential for industrial and automotive applications. Conventional buck converters have to use high-voltage transistors that incur large power loss and bulky inductors that occupy significant board area, leading to compromised efficiency and current density. Recent advancements in hybrid converters [1–6] provide promising solutions for such applications. These converters introduce flying capacitors to lower the voltage stress of the power transistors or to reduce the inductor current (IL). For instance, double step-down (DSD) related converters [1, 2] and a switched-capacitor buck converter [3] are proposed to lower the voltage stress of the power transistors to up to VIN/4, allowing the use of low-voltage transistors for improved efficiency. However, the inductors still have to handle the entire output current (IO) as
Yichao Ji, Ji Jin, Lin Cheng
University of Science and Technology of China, Hefei, China