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该论文提出了一种采用负输出反馈的理性转换比开关电容DC-DC转换器，解决了传统SC转换器转换比有限、难以适应输入或输出电压变化的问题，特别适用于电池电压缓慢下降的无线系统。
Switched-capacitor (SC) DC-DC converters have several advantages over inductive DC-DC converters in that they are easily integrated on-chip and can scale to desired power levels, rendering themselves promising for integrated voltage regulators, especially for small, low-power systems. However, many SC DC-DC converters offer only a few conversion ratios, limiting their use for systems in which either the input or output voltages vary. This is particularly important in wireless systems where battery voltage degrades slowly. [1] proposed a technique to reconfigure cascaded SC converters to achieve arbitrary binary ratios: p/2N, 0<p<2N, where N is the number of cascaded stages. This structure was improved in [2] by reversing the cascading order to increase output conductance and in [3] by using a positive feedback approach. However, this design still provides less output conductance than previous works offering only a small fixed number of
Wanyeong Jung, Dennis Sylvester, David Blaauw
University of Michigan, Ann Arbor, MI