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本文提出了一种可重新配置的电容性sigma转换器，实现了5V输入下98.4%的峰值效率，并能保持大于90%的峰值效率，解决了宽电压转换比下高效能量转换的问题。
computing cores with a wide-range sub-volt rail, the energy-efficient high and wide voltageconversion-ratio (VCR) converters are crucially important. In addition, low form factor and decent transient responses are also favorable for such applications. Prior state-ofthe-art designs either use single-stage hybrid designs using multi-level or Dickson converters [1-3], or adopt two-stage cascaded architectures with a highly efficient unregulated front (or rear) stage [4], as shown in Fig. 18.6.1(left). The multi-level designs, which conduct the full inductor current through all the on-state switches, are suited to low-to-medium power levels with limited current density. The Dickson converters take advantage of a high conversion ratio, however, at the cost of reduced
Xu Yang, Linhu Zhao, Menglian Zhao, Zhichao Tan, Lenian He, Yong Ding,
Wuhua Li, Wanyuan Qu Zhejiang University, Hangzhou, China For the battery- or USB-powered portable smart devices, which supply their