Electromagnetic Energy Harvesting Circuit With Feedforward and Feedback DC–DC PWM Boost Converter for Vibration Power Generator System
Electromagnetic Energy Harvesting Circuit With Feedforward and Feedback DC–DC PWM Boost Converter for Vibration Power Generator System
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DOI：
10.1109/tpel.2006.890009
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发表时间：
2007-03
影响因子：
6.7
通讯作者：
Xinping Cao;Wen‐Jen Chiang;Y. King;Yi-Kuen Lee
中科院分区：
文献类型：
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作者：
Xinping Cao;Wen‐Jen Chiang;Y. King;Yi-Kuen Lee
本文提出了一种集成式振动能量发生器系统。该系统由一个微型电磁振动能量发生器以及一个在微小印刷电路板和0.35微米CMOS集成芯片上实现的高效能量采集电路组成。通过在具有前馈控制的直流 - 直流脉宽调制（PWM）升压转换器中引入反馈控制，能量采集电路能够根据输入电压和储能元件电压的变化来调整转换器的占空比，从而获得高能量转换效率。能量采集电路对输入的交流电压进行整流，通过具有前馈和反馈控制的直流 - 直流PWM升压转换器提升整流器的直流输出，并将电能存储在一个超级电容器中，该超级电容器可用作智能微传感器网络的小型电源。
This paper presents an integrated vibration power generator system. The system consists of a mini electromagnetic vibration power generator and a highly efficient energy harvesting circuit implemented on a minute printed circuit board and a 0.35-mum CMOS integrated chip. By introducing a feedback control into the dc-dc pulsewidth modulation (PWM) boost converter with feedforward control, the energy harvesting circuit can adjust the duty ratio of the converter following the variation of the input voltage and the voltage of energy storage element to get high energy conversion efficiency. The energy harvesting circuit rectifies the input ac voltage, steps up the dc output of the rectifier by the dc-dc PWM boost converter with feedforward and feedback control and stores the electric energy into a super capacitor, which can be used as a small electrical power supply for an intelligent micro sensor network