⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种25MHz 4相SAW迟滞DC-DC转换器，通过1周期自适应功率控制（APC）实现了190ns的4A负载瞬态建立时间，解决了现代应用处理器对高电流摆率（1A/ns）的需求以及多相转换器在轻载下的功率损耗问题。
Switching power converters with fast load transients are crucial for application processors (APs) to facilitate system-level power adaptability with high current slew rate. While current-mode hysteretic control has been popularly employed in switching converters for simple structure, robust operation and fast transient response [1], it still does not suffice for the unprecedented 1A/ns current slew rate required by modern APs [2]. Meanwhile, current slew rate can be improved by extending single-phase to multiphase operation. However, when a converter powers light load, power loss caused by added phases adversely affects the efficiency. Active phase count (APC) was thus proposed to manage the number of active phases judiciously to load by sensing average inductor current [3,4]. However, the inherent sensing delay drastically slows down the phase adding/dropping actions and degrades load transient response. On the other hand,
Bumkil Lee, Min Kyu Song, Ashis Maity, D. Brian Ma
University of Texas at Dallas, Richardson, TX