Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof
This paper proposes a concept of battery-assisted battery charger with maximum power point tracking for DC energy transducer such as thermoelectric generator and photo voltaic generator, and shows experimental results to prove the concept. The DC energy transducer is connected in series with a batte...
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Format: | Article |
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MDPI AG
2023-09-01
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Series: | Electronics |
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Online Access: | https://www.mdpi.com/2079-9292/12/19/4102 |
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author | Shunsuke Tanabe Toru Tanzawa |
author_facet | Shunsuke Tanabe Toru Tanzawa |
author_sort | Shunsuke Tanabe |
collection | DOAJ |
description | This paper proposes a concept of battery-assisted battery charger with maximum power point tracking for DC energy transducer such as thermoelectric generator and photo voltaic generator, and shows experimental results to prove the concept. The DC energy transducer is connected in series with a battery to increase the voltage. The plus terminal for the DC energy transducer is connected with the input terminal of a DC-DC buck converter, whereas the battery is connected with the output terminal of the converter. Thus, the current is boosted from the input to the output. When the net current to the battery is positive, the system works as a battery charger. To extract the as much power from the DC energy transducer as possible for high charging efficiency, maximum power point tracking is introduced. The converter was designed in 180 nm 3V CMOS with a silicon area of 1.05 mm<sup>2</sup>. The concept was experimentally proven by varying the reference voltages to control the input voltage. An all-solid-state battery was charged up from 2.2 V to 2.3 V in two hours by the converter with a flexible thermoelectric generator which had an open-circuit voltage of 0.6 V. |
first_indexed | 2024-03-10T21:46:58Z |
format | Article |
id | doaj.art-b9e799b778be48cb878b585283698e70 |
institution | Directory Open Access Journal |
issn | 2079-9292 |
language | English |
last_indexed | 2024-03-10T21:46:58Z |
publishDate | 2023-09-01 |
publisher | MDPI AG |
record_format | Article |
series | Electronics |
spelling | doaj.art-b9e799b778be48cb878b585283698e702023-11-19T14:17:15ZengMDPI AGElectronics2079-92922023-09-011219410210.3390/electronics12194102Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental ProofShunsuke Tanabe0Toru Tanzawa1Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu 432-8561, JapanGraduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu 432-8561, JapanThis paper proposes a concept of battery-assisted battery charger with maximum power point tracking for DC energy transducer such as thermoelectric generator and photo voltaic generator, and shows experimental results to prove the concept. The DC energy transducer is connected in series with a battery to increase the voltage. The plus terminal for the DC energy transducer is connected with the input terminal of a DC-DC buck converter, whereas the battery is connected with the output terminal of the converter. Thus, the current is boosted from the input to the output. When the net current to the battery is positive, the system works as a battery charger. To extract the as much power from the DC energy transducer as possible for high charging efficiency, maximum power point tracking is introduced. The converter was designed in 180 nm 3V CMOS with a silicon area of 1.05 mm<sup>2</sup>. The concept was experimentally proven by varying the reference voltages to control the input voltage. An all-solid-state battery was charged up from 2.2 V to 2.3 V in two hours by the converter with a flexible thermoelectric generator which had an open-circuit voltage of 0.6 V.https://www.mdpi.com/2079-9292/12/19/4102DC energy transducerbattery chargerthermoelectric generatorconvertermaximum power pointsensor |
spellingShingle | Shunsuke Tanabe Toru Tanzawa Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof Electronics DC energy transducer battery charger thermoelectric generator converter maximum power point sensor |
title | Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof |
title_full | Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof |
title_fullStr | Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof |
title_full_unstemmed | Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof |
title_short | Battery-Assisted Battery Charger with Maximum Power Point Tracking for Thermoelectric Generator: Concept and Experimental Proof |
title_sort | battery assisted battery charger with maximum power point tracking for thermoelectric generator concept and experimental proof |
topic | DC energy transducer battery charger thermoelectric generator converter maximum power point sensor |
url | https://www.mdpi.com/2079-9292/12/19/4102 |
work_keys_str_mv | AT shunsuketanabe batteryassistedbatterychargerwithmaximumpowerpointtrackingforthermoelectricgeneratorconceptandexperimentalproof AT torutanzawa batteryassistedbatterychargerwithmaximumpowerpointtrackingforthermoelectricgeneratorconceptandexperimentalproof |