⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种可重构的单电感多级混合DC-DC转换器，适用于USB-C PD宽输入电压范围（5V-20V）到电池充电电压（2.8V-4.2V）的高效转换。通过单电感多级混合架构和可重构技术，实现了21W输出功率和94.8%的峰值效率，同时减小了电感尺寸。
The ongoing demand for smaller form factors and faster charging times of mobile products continue to drive the need for efficient, high-density power delivery (PD) for charging with a wide input voltage (VIN) range of 5V to 20V, offered by USB-C PD. A converter solution that efficiently takes advantage of this wide VIN range while providing an output voltage (VO) range suitable for battery charging (2.8V to 4.2V) remains challenging but highly desirable. Hybrid converters and their benefits such as inductor size reduction and small VO/VIN voltage conversion ratios (VCRs) at high efficiency provide a path to meet this challenge. While recent commercial [1] and research works [2–4] have demonstrated these benefits, their limited VIN or VCR ranges are unable to take full advantage of USB-C PD or have the inductor located at the high output current (IO) path [1–3] where DCR conduction losses can become significant for small footprints.
Casey Hardy, Hanh-Phuc Le
University of California, San Diego, CA