Switched-Capacitor Boost Converter Design and Modeling for Indoor Optical Energy Harvesting with Integrated Photodiodes

被引：0
|
作者：
Hsu, Stanley W. [1 ]
Fong, Erin [1 ]
Jain, Vipul [1 ]
Kleeburg, Travis [1 ]
Amirtharajah, Rajeevan [1 ]
机构：
[1] Univ Calif Davis, Dept Elect & Comp Engn, Micropower Circuits & Syst Grp, Davis, CA 95616 USA
来源：
2013 IEEE INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN (ISLPED) | 2013年
关键词：
Switched capacitor circuits; Delta-sigma modulation; Photodiodes; Energy harvesting; Analog-digital integrated circuits; wireless sensor networks;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Integrated photovoltaic energy harvesting from indoor lighting is appropriate for ultra-low duty cycle applications. Indoor illumination may flicker due to AC mains rectification or pulse-width-modulated dimming, causing ripple on the output voltage. Switched-capacitor DC/DC conversion can increase harvester output voltage and reduce this ripple. We present a switched-capacitor boost converter design, a model that matches measured output voltage within 10% for 500 Hz to 5 MHz switching frequencies, and compare the converter to a series photodiode configuration. The distortion caused by supply ripple on a passive filter delta-sigma modulator is modeled and verified with measurements from a 180nm test chip.
引用
收藏
页码：169 / 174
页数：6
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