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本文提出了一种用于电致变色智能窗的三模式单电感四象限转换器，通过集成buck/boost、反相buck/boost和辅助过渡模式，实现了输入5-12V、输出-5至+5V、负载电流-3至3A的全四象限操作。该转换器实现了无缝零交叉和模式切换，仅用单个电感，达到94.6%的峰值效率，系统紧凑、低成本且低复杂度。
Abstract This paper presents a three-mode single-inductor four-quadrant converter with 94.6% peak efficiency for electrochromic smart windows. It supports a 5 to 12V input, a −5 to +5V output and a −3 to 3A load current, achieving full four-quadrant operation by employing buck/boost, inverting buck/boost and auxiliary transition modes. This integrated converter enables seamless zero-crossing and mode switching with a single inductor, thus resulting in a compact, low-cost, and low-complexity system. A four-quadrant power supply (FQPS) enables bidirectional energy transfer with full control of voltage polarity and current direction, thereby covering all four quadrants of the voltagecurrent plane (top-left of Fig. 19.2.1). This capability is increasingly indispensable for applications demanding reversible energy flow and dynamic load regulation, including electrochromic (EC) smart windows for automotive and aerospace systems. In EC devices,
Peng Cao1,2, Jiawei Xu2, Zhiliang Hong2
Nanjing University, Suzhou, China, 2Fudan University, Shanghai, China