A Circuit for Energy Harvesting Using On-Chip Solar Cells
A Circuit for Energy Harvesting Using On-Chip Solar Cells
复制标题
使用片上太阳能电池进行能量收集的电路
DOI：
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发表时间：
2014
影响因子：
6.7
通讯作者：
W. Leon
中科院分区：
文献类型：
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作者：
Suvradip Ghosh;Hsuan;W. Leon
本文讨论了片上太阳能收集，并提出了一种可用于从集成光电二极管产生高电压的电路。所提出的电路采用开关电感方法，以避免堆叠光电二极管产生高电压。寄生光电二极管存在于集成电路（ic）的影响进行了讨论，并提出了一个解决方案，以尽量减少其影响。所提出的电路采用两个开关晶体管和两个片外组件：一个电感器和一个电容器。对开关电感式dc-dc变换器进行了理论分析，建立了能量采集器的数学模型。测量从一个制造的集成电路提出，并显示在很好的协议与硬件测量。测量结果表明，一个集成光电二极管可以产生高达2.81 V的电压（取决于照明和负载条件）。能量采集器电路达到59%的最大转换效率。
This paper addresses on-chip solar energy harvesting and proposes a circuit that can be employed to generate high voltages from integrated photodiodes. The proposed circuit uses a switched-inductor approach to avoid stacking photodiodes to generate high voltages. The effect of parasitic photodiodes present in integrated circuits (ICs) is addressed and a solution to minimize their impact is presented. The proposed circuit employs two switch transistors and two off-chip components: an inductor and a capacitor. A theoretical analysis of a switched-inductor dc-dc converter is carried out and a mathematical model of the energy harvester is developed. Measurements taken from a fabricated IC are presented and shown to be in good agreement with hardware measurements. Measurement results show that voltages of up to 2.81 V (depending on illumination and loading conditions) can be generated from a single integrated photodiode. The energy harvester circuit achieves a maximum conversion efficiency of 59%.
影响因子：
6.7
作者：
Alajmi, Bader N.;Ahmed, Khaled H.;Williams, Barry W.
通讯作者：
Williams, Barry W.