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本文提出了一种动态导通电阻减小的双向GaN负载开关，用于48V电动汽车电池切换系统。该开关实现了双向电流流动和反向电流阻断，并集成了浪涌电流保护和尖峰衰减功能，提高了功率管理的效率和安全性。
Chien-Wei Cho1, Sheng-Hsi Hung1, Yu-Tse Shih1, Ke-Horng Chen1, Kuo-Lin Zheng2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3, Hann-Huei Tsai4 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Realtek Semiconductor, Hsinchu, Taiwan 4 Taiwan Semiconductor Research Institute, Hsinchu, Taiwan 1 2 In 48V electric vehicle (EV) power systems, high-side battery switching requires an advanced load switch (LS) capable of bidirectional current flow and reverse current blocking for efficient and safe power management. During the battery charging phase, a single charger sequentially charges multiple battery cells (Fig. 32.6.1 top left). The LS that is connected between the charger and the battery cells must block reverse current in the off state to prevent the charged battery from discharging. Moreover, during the battery discharge phase, the LS enables current to flow from the battery to the load. Therefore, the
Po-Jui Chiu1, Tz-Wun Wang1, Xiao-Quan Wu1, Chi-Yu Chen1, Yu-Ting Huang1,