⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种单电感四输出DC-DC降压转换器，采用基于纹波的自适应关断时间控制，实现了87%的峰值效率并支持动态电压调节。主要解决了先前单电感多输出转换器中的交叉调节和功耗问题。
Improving battery longevity in portable devices usually requires the use of different voltage levels with a wide range of load capability for various functional blocks. Since a single-inductor-multiple-output (SIMO) converter can support multiple output voltages while using only one inductor, it is an excellent candidate to minimize the component count and thus the production cost. However, the cross-regulation and power consumption are two main issues of the previously reported SIMO converters [1-5]. Although pseudo-continuous conduction-mode (PCCM) control with a freewheel period [1] tries to augment power density and eliminate cross-regulation, associated power dissipation of freewheel switch exacerbates its overall efficiency. The charge-control technique with energy recovery presented [2] decouples the output channels between each switching cycle, at the expense of additional switching loss and slow response.
Danzhu Lu, Yao Qian, Zhiliang Hong
Fudan University, Shanghai, China