Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/101CBC08-1E21-4155-B122-27FF8B2BABD3 | - |
| Αναγνωριστικό | https://doi.org/10.3390/electronics10172097 | - |
| Αναγνωριστικό | https://www.mdpi.com/2079-9292/10/17/2097/htm | - |
| Γλώσσα | en | - |
| Μέγεθος | 14 pages | en |
| Τίτλος | An ultra-low-power CMOS supercapacitor storage unit for energy harvesting applications | en |
| Δημιουργός | Gogolou Vasiliki | en |
| Δημιουργός | Kozalakis Konstantinos | en |
| Δημιουργός | Koutroulis Eftychios | en |
| Δημιουργός | Κουτρουλης Ευτυχιος | el |
| Δημιουργός | Doumenis Gregory | en |
| Δημιουργός | Siskos Stylianos | en |
| Εκδότης | MDPI | en |
| Περίληψη | This work presents an ultra-low-power CMOS supercapacitor storage unit suitable for a plethora of low-power autonomous applications. The proposed unit exploits the unregulated voltage output of harvesting circuits (i.e., DC-DC converters) and redirects the power to the storage elements and the working loads. Being able to adapt to the input energy conditions and the connected loads’ supply demands offers extended survival to the system with the self-startup operation and voltage regulation. A low-complexity control unit is implemented which is composed of power switches, comparators and logic gates and is able to supervise two supercapacitors, a small and a larger one, as well as a backup battery. Two separate power outputs are offered for external load connection which can be controlled by a separate unit (e.g., microcontroller). Furthermore, user-controlled parameters such as charging and discharging supercapacitor voltage thresholds, provide increased versatility to the system. The storage unit was designed and fabricated in a 0.18 um standard CMOS process and operates with ultra-low current consumption of 432 nA at 2.3 V. The experimental results validate the proper operation of the overall structure. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2022-10-06 | - |
| Ημερομηνία Δημοσίευσης | 2021 | - |
| Θεματική Κατηγορία | Energy harvesting | en |
| Θεματική Κατηγορία | On-chip integration | en |
| Θεματική Κατηγορία | Power management | en |
| Θεματική Κατηγορία | Supercapacitor | en |
| Θεματική Κατηγορία | Storage unit | en |
| Βιβλιογραφική Αναφορά | V. Gogolou, K. Kozalakis, E. Koutroulis, G. Doumenis, and S. Siskos, “An ultra-low-power CMOS supercapacitor storage unit for energy harvesting applications,” Electronics, vol. 10, no. 17, Aug. 2021, doi: 10.3390/electronics10172097. | en |
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