A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting
A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting
复制标题
DOI：
10.1587/elex.17.20200284
复制
发表时间：
2020-09
期刊：
影响因子：
--
通讯作者：
Jiashu Guo;Houpeng Chen;Yu Lei;Qian Wang;Xi Li;Jie Miao;Chenchen Xie;Zhenwei Zhang;
中科院分区：
文献类型：
--
作者：
Jiashu Guo;Houpeng Chen;Yu Lei;Qian Wang;Xi Li;Jie Miao;Chenchen Xie;Zhenwei Zhang;
本文提出了一种采用非对称电感器可重构技术的自启动电路，用于能量收集的双输出升压转换器。研究发现，具有不对称电感的交叉耦合LC振荡器可以输出比普通振荡器高得多的电压。因此，自启动电路采用非对称电感可重构技术（AIRT），实现了150mV的最小启动电压。 AIRT通过复用自启动电路和升压系统中的电感，实现双输出，提高芯片引脚利用率。自启动电路和升压系统采用0.13μm CMOS工艺实现，转换器效率达到73.7%。升压转换器的芯片面积为0.155mm2。自启动电路占用面积仅为0.006mm2，无需其他额外能源。
A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting is presented in this paper. It is found that the cross-coupled LC oscillator with asymmetric inductors can output much higher voltage than ordinary oscillators. Thus, the asymmetric inductors reconfigurable technology (AIRT) is used in the self-start circuit and a minimum startup voltage of 150mV is achieved. The AIRT realizes dual-output and improves the utilization of chip pins by reusing inductors in the self-start circuit and the boost system. The self-start circuit and the boost system are implemented in a 0.13μm CMOS process and a 73.7% converter efficiency is achieved. The chip area of the boost converter is 0.155mm2. The area occupied by self-start circuit is only of 0.006mm2 without other extra energy sources.