A Wide 0.1-to-10 Conversion-Ratio Symmetric Hybrid Buck-Boost Converter for USB PD Bidirectional Conversion

📋 论文概要

本文提出了一种对称混合降压-升压转换器，实现了0.1至10的极宽转换比，满足USB PD 3.1高达48V的电压需求。该转换器支持双向功率转换，适用于USB Type-C接口的单端口电力传输，解决了传统转换器在宽转换比和高压应力下的性能瓶颈。

💡 主要创新点

• 提出对称混合拓扑结构，实现0.1至10的宽转换比范围，同时支持双向功率流动。
• 通过优化开关策略和高压器件设计，在宽转换比下保持高效率并承受48V高压应力。
• 实现了快速瞬态响应，满足USB PD协议对动态电压调节的要求。

🏷 关键词

📄 原文摘要

Semiconductor, Hsinchu, Taiwan 1 2 In recent years, USB Power Delivery (USB PD) is playing an increasingly important role in the field of consumer electronics. The USB PD 3.1 extends the delivering voltage up to 48V, which requires a buck-boost converter with extreme conversion ratio (CR= VOUT/VIN ) range from 0.1~10, high-voltage (HV) stress switches, and fast transient response. Into the bargain, the USB Type-C interface with USB PD specification allows power delivery through a single port, which brings about the necessity for bi-directional power converter. To fulfill this task, one of the most common proposals is to implement two power converters for each direction, but this method will be costly to accomplish

👥 作者与机构

Cheng Lin1, Chieh-Sheng Hung1, Si-Yi Li1, Ya-Ting Hsu1, Ke-Horng Chen1,

Kuo-Lin Zheng1,2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Realtek