A high convert efficiency energy harvesting circuit based on single-inductor dual-input dual-output boost-buck DC-DC

YUE Hongwei; YANG Jun; WANG Annan; XIAO Xin; WEI Baolin

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A high convert efficiency energy harvesting circuit based on single-inductor dual-input dual-output boost-buck DC-DC

更新时间：2026-09-04

- A high convert efficiency energy harvesting circuit based on single-inductor dual-input dual-output boost-buck DC-DC
- Vol. 38, Issue 7, Pages: 48-53(2021)
- 作者机构：
  
  桂林电子科技大学机构广西精密导航技术与应用重点实验室,广西,桂林,541004
- 作者简介：
- 基金信息：
- DOI：
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- Published：2021
- 稿件说明：
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岳宏卫, 杨俊, 王桉楠, 肖鑫, 韦保林. 基于单电感双输入双输出Boost-buck DC-DC的高转换效率能量收集电路[J]. 微电子学与计算机, 2021, 38(7): 48-53.

YUE Hongwei, YANG Jun, WANG Annan, et al. A high convert efficiency energy harvesting circuit based on single-inductor dual-input dual-output boost-buck DC-DC[J]. 2021, 38(7): 48-53.
岳宏卫, 杨俊, 王桉楠, 肖鑫, 韦保林. 基于单电感双输入双输出Boost-buck DC-DC的高转换效率能量收集电路[J]. 微电子学与计算机, 2021, 38(7): 48-53. DOI：

YUE Hongwei, YANG Jun, WANG Annan, et al. A high convert efficiency energy harvesting circuit based on single-inductor dual-input dual-output boost-buck DC-DC[J]. 2021, 38(7): 48-53. DOI：

摘要

基于TSMC 0.18μm CMOS工艺，设计了一种应用于物联网(IoT)无线传感器节点的双输入双输出高转换效率能量收集电路，在最大功率点跟踪技术和整流技术支持下实现对压电能(PZ)和热电能(TEG)两种能量源的自主能量收集.电路在轻载状态下，Boost升压回路对超级电容和负载供电，实现双路输出；在重载状态下，Boost升压和Buck降压回路同时对负载供电，弥补了能源不足的缺陷.通过引入非连续导通模式(DCM)、连续导通模式(CCM)的自主切换技术，有效减少电感上的电流反向泄漏，显著提高了电路转换效率.仿真结果表明峰值转换效率可达到90.6%.

Abstract

Based on TSMC 0.18μm CMOS process

a high conversion efficiency energy harvesting circuit with dual-input and dual-outputwas designed for wireless sensor nodes of the Internet of Things (IoT).With the support of maximum power point tracking technology and rectification technology

the autonomously harvest energy from both piezoelectric energy (PZ) and thermoelectric energy (TEG) sources was realized. Under light load

the Boost circuit can supply power to the super-capacitor and the load to achieve dual output

and under heavy load

the Boost and Buck circuits supply power to the load at the same time to compensate for the energy shortage. By introducing the independent switching technology of discontinuous conduction mode (DCM) and continuous conduction mode (CCM)

the reverse current leakage on the inductor is effectively reduced and the conversion efficiency of the circuit is significantly improved. The simulation results show that the peak conversion efficiency can reach 90.6%.

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references

DALLAGO E, FRATTINI G, MIATTON D, et al. Integrablehigh-efficiency AC-DC converter for piezoelectric energy scavenging system[C]//2007 IEEE International Conference on Portable Information Devices. Orlando: IEEE, 2007. DOI: 10.1109/PORTABLE.2007.61.

ELHEBEARY M R, IBRAHIM M A A, ABOUDINA M M, et al. A dual source microscale energy harvesting system for wireless sensor networks[C]//2015 IEEE 24th International Symposium on Industrial Electronics(ISIE). Buzios: IEEE, 2015. DOI: 10.1109/ISIE.2015.7281458.

ELHEBEARY M R, IBRAHIM M A A, ABOUDINA M M, et al. Dual-source self-start high-efficiency microscale smart energy harvesting system for IoT[J]. IEEE Transactions on Industrial Electronics, 2018, 65(1): 342-351. DOI: 10.1109/TIE.2017.2714119.

LIU L X, TU W, MU J C, et al. A voltage doubling AC-DC converter with offset-controlled comparators for piezoelectric energy harvester[C]//2015 IEEE 11th International Conference on ASIC(ASICON). Chengdu: IEEE, 2015. DOI: 10.1109/ASICON.2015.7517113.

CARLSON E J, STRUNZ K, OTIS B P. A 20 mV input boost converter with efficient digital control for thermoelectric energy harvesting[J]. IEEE Journal of Solid-State Circuits, 2010, 45(4): 741-750. DOI: 10.1109/JSSC.2010.2042251.

CHEN I C, LIANG C W, TSAI T H. A single-inductor dual-input dual-output DC-DC converter for photovoltaic and piezoelectric energy harvesting systems[J]. IEEE Transactions on Circuits and Systems Ⅱ: Express Briefs, 2019, 66(10): 1763-1767. DOI: 10.1109/TCSⅡ.2019.2921349.

LIU C W, LEE H H, LIAO P C, et al. Dual-source energy-harvesting interfacewith cycle-by-cycle source tracking and adaptive peak-inductor-current control[J]. IEEE Journal of Solid-State Circuits, 2018, 53(10): 2741-2750. DOI: 10.1109/JSSC.2018.2844358.

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