⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种连续可变压转换比的开关电容转换器，通过可重构的VCF步进实现宽电压转换比范围内的高效率。该转换器适用于能量收集系统的最大功率点跟踪，支持0.5V至2V的宽输出范围。
Zhuhai UM Science & Technology Research Institute, Zhuhai, China 3 Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 DC-DC converters are widely used in energy harvesting systems for maximum power point tracking (MPPT) from energy sources. It is desirable to accommodate different energy sources (a wide input voltage VIN range), together with a wide range of output voltage VOUT range, from down-to-0.5V to up-to-2V (for button battery). Therefore, a buck-boost converter with high efficiency over a wide voltage conversion ratio (VCR) range is favorable. To reduce the volume and cost, switched-capacitor (SC) converters are in demand. However, a conventional SC only obtains good efficiency at discontinuous VCRs [1] (Fig.$30.7.1). This stems from the large voltage swing (∆VCF) on the flying capacitors CF at non-optimum VCRs, leading to large charge sharing loss (PCSL) and CF
Yuanfei Wang1,2, Mo Huang1, Yan Lu1, Rui P. Martins1,3
University of Macau, Macau, China