A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting
This paper presents a piezoelectric (PE) energy harvesting circuit, which integrates a Synchronized Switch Harvesting on Inductor (SSHI) circuit and a diode bridge rectifier. A typical SSHI circuit cannot transfer the power from a PE cantilever into the load when the rectified voltage is higher than...
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2021-01-01
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doaj-0ade3171b51c47eabe4489768b7fa1392021-01-18T00:01:26ZengMDPI AGSensors1424-82202021-01-012161561510.3390/s21020615A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy HarvestingLiao Wu0Peidong Zhu1Minghua Xie2School of Electronic Information and Electrical Engineering, Changsha University, Changsha 410022, Hunan, ChinaSchool of Electronic Information and Electrical Engineering, Changsha University, Changsha 410022, Hunan, ChinaSchool of Electronic Information and Electrical Engineering, Changsha University, Changsha 410022, Hunan, ChinaThis paper presents a piezoelectric (PE) energy harvesting circuit, which integrates a Synchronized Switch Harvesting on Inductor (SSHI) circuit and a diode bridge rectifier. A typical SSHI circuit cannot transfer the power from a PE cantilever into the load when the rectified voltage is higher than a certain voltage. The proposed circuit addresses this problem. It uses the two resonant loops for flipping the capacitor voltage and energy transfer in each half cycle. One resonant loop is typically used for the parallel SSHI scheme, and the other for the series SSHI scheme. The hybrid SSHI circuit using the two resonant loops enables the proposed circuit’s output voltage to no longer be limited. The circuit is self-powered and has the capability of starting without the help of an external battery. Eleven simple discrete components prototyped the circuit. The experimental results show that, compared with the full-bridge (FB) circuit, the amount of power harvested from a PE cantilever and the Voltage Range of Interest (VRI) of the proposed circuit is increased by 2.9 times and by 4.4 times, respectively. A power conversion efficiency of 83.2% is achieved.https://www.mdpi.com/1424-8220/21/2/615wide operation rangepiezoelectric energy harvestingSSHIvibration energy harvesting |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liao Wu Peidong Zhu Minghua Xie |
spellingShingle |
Liao Wu Peidong Zhu Minghua Xie A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting Sensors wide operation range piezoelectric energy harvesting SSHI vibration energy harvesting |
author_facet |
Liao Wu Peidong Zhu Minghua Xie |
author_sort |
Liao Wu |
title |
A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting |
title_short |
A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting |
title_full |
A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting |
title_fullStr |
A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting |
title_full_unstemmed |
A Self-Powered Hybrid SSHI Circuit with a Wide Operation Range for Piezoelectric Energy Harvesting |
title_sort |
self-powered hybrid sshi circuit with a wide operation range for piezoelectric energy harvesting |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2021-01-01 |
description |
This paper presents a piezoelectric (PE) energy harvesting circuit, which integrates a Synchronized Switch Harvesting on Inductor (SSHI) circuit and a diode bridge rectifier. A typical SSHI circuit cannot transfer the power from a PE cantilever into the load when the rectified voltage is higher than a certain voltage. The proposed circuit addresses this problem. It uses the two resonant loops for flipping the capacitor voltage and energy transfer in each half cycle. One resonant loop is typically used for the parallel SSHI scheme, and the other for the series SSHI scheme. The hybrid SSHI circuit using the two resonant loops enables the proposed circuit’s output voltage to no longer be limited. The circuit is self-powered and has the capability of starting without the help of an external battery. Eleven simple discrete components prototyped the circuit. The experimental results show that, compared with the full-bridge (FB) circuit, the amount of power harvested from a PE cantilever and the Voltage Range of Interest (VRI) of the proposed circuit is increased by 2.9 times and by 4.4 times, respectively. A power conversion efficiency of 83.2% is achieved. |
topic |
wide operation range piezoelectric energy harvesting SSHI vibration energy harvesting |
url |
https://www.mdpi.com/1424-8220/21/2/615 |
work_keys_str_mv |
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