A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input
A fully integrated piezoelectric energy harvesting interface is proposed for harvesting energy from irregular human motion. To handle irregular pulse inputs generated by the piezoelectric transducer (PZT), the proposed harvesting interface includes a wake-up controller that activates the harvesting...
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| Format: | Article |
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MDPI AG
2020-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/8/1939 |
| _version_ | 1797570640192995328 |
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| author | Muhammad Bilawal Khan Hassan Saif Yoonmyung Lee |
| author_facet | Muhammad Bilawal Khan Hassan Saif Yoonmyung Lee |
| author_sort | Muhammad Bilawal Khan |
| collection | DOAJ |
| description | A fully integrated piezoelectric energy harvesting interface is proposed for harvesting energy from irregular human motion. To handle irregular pulse inputs generated by the piezoelectric transducer (PZT), the proposed harvesting interface includes a wake-up controller that activates the harvesting interface only when human motion is detected and deformation is applied on the piezoelectric material, thereby keeping static power loss low. The PZT output voltage is increased to its peak voltage by removing any type of external load capacitance seen by the PZT during its deformation. Once the peak voltage is detected, a multi-voltage conversion-ratio-based switched-capacitor circuit is activated to transfer PZT-generated energy to the battery in multiple ratio steps to maximize the conversion efficiency, with the help of a carefully designed harvesting controller. To deal with open-circuit voltages (V<sub>OCS</sub>) higher than the maximum voltage tolerated (V<sub>MAX</sub>) by available technology, capacitive partial electric charge extraction is activated every time the PZT output voltage approaches the V<sub>MAX</sub>. The proposed harvesting interface extracts 3.37 times more energy than a conventional full-bridge rectifier-based harvesting scheme. |
| first_indexed | 2024-03-10T20:27:29Z |
| format | Article |
| id | doaj.art-cf78ff06756a4c1cafa9c43463a4ee5d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:27:29Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-cf78ff06756a4c1cafa9c43463a4ee5d2023-11-19T21:40:45ZengMDPI AGEnergies1996-10732020-04-01138193910.3390/en13081939A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage InputMuhammad Bilawal Khan0Hassan Saif1Yoonmyung Lee2Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaA fully integrated piezoelectric energy harvesting interface is proposed for harvesting energy from irregular human motion. To handle irregular pulse inputs generated by the piezoelectric transducer (PZT), the proposed harvesting interface includes a wake-up controller that activates the harvesting interface only when human motion is detected and deformation is applied on the piezoelectric material, thereby keeping static power loss low. The PZT output voltage is increased to its peak voltage by removing any type of external load capacitance seen by the PZT during its deformation. Once the peak voltage is detected, a multi-voltage conversion-ratio-based switched-capacitor circuit is activated to transfer PZT-generated energy to the battery in multiple ratio steps to maximize the conversion efficiency, with the help of a carefully designed harvesting controller. To deal with open-circuit voltages (V<sub>OCS</sub>) higher than the maximum voltage tolerated (V<sub>MAX</sub>) by available technology, capacitive partial electric charge extraction is activated every time the PZT output voltage approaches the V<sub>MAX</sub>. The proposed harvesting interface extracts 3.37 times more energy than a conventional full-bridge rectifier-based harvesting scheme.https://www.mdpi.com/1996-1073/13/8/1939energy harvesterpiezoelectric generatorharvesting interfacehigh-voltage harvestingcapacitive partial electric charge extraction |
| spellingShingle | Muhammad Bilawal Khan Hassan Saif Yoonmyung Lee A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input Energies energy harvester piezoelectric generator harvesting interface high-voltage harvesting capacitive partial electric charge extraction |
| title | A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input |
| title_full | A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input |
| title_fullStr | A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input |
| title_full_unstemmed | A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input |
| title_short | A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input |
| title_sort | piezoelectric harvesting interface with capacitive partial electric charge extraction for energy harvesting from irregular high voltage input |
| topic | energy harvester piezoelectric generator harvesting interface high-voltage harvesting capacitive partial electric charge extraction |
| url | https://www.mdpi.com/1996-1073/13/8/1939 |
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