A high voltage triboelectric energy harvesting system utilizing parallel-SSHI rectifier and DC-DC converters for SUB-5 hz motions
| dc.contributor | Ph.D. Program in Electrical and Electronic Engineering. | |
| dc.contributor.advisor | Mutlu, Şenol. | |
| dc.contributor.advisor | Doğan, Hakan. | |
| dc.contributor.author | Kara, İsmail. | |
| dc.date.accessioned | 2023-03-16T10:25:37Z | |
| dc.date.available | 2023-03-16T10:25:37Z | |
| dc.date.issued | 2020. | |
| dc.description.abstract | In this thesis, the first integrated circuit (IC) implementation of parallel synchronized switching harvesting on inductor (parallel-SSHI) is presented for triboelectric energy harvester targeting 1 Hz to 5 Hz mechanical motions. It is accompanied by on-chip buck and switched-capacitor DC-DC converters, all capable of handling 70 V levels. Unlike piezoelectric harvesters, triboelectric nanogenerators (TENGs) can produce very high open-circuit voltages; thus, the proposed system utilizes this property within the technology limits to maximize the extracted power. An in-house manufactured TENG using steel and polytetra uoroethylene (PTFE) is modeled for sub-5 Hz motions. The energy is extracted and stored in an external capacitance until its voltage reaches 70 V, which is achieved in three press-and-release mechanical cycles. 70-to-2 V down conversion is carried on by a 70-to-10 V buck converter followed by a 10-to-2 V switched-capacitor DC-DC converter. A chip is manufactured in TSMC 0.18 m HV BCD process with an active area of 6.25 mm2. End-to-end peak e ciency is measured as 32.71% for 1 Hz motion with a 722 W total power delivery to the load for 4 ms. | |
| dc.format.extent | 30 cm. | |
| dc.format.pages | xvii, 93 leaves ; | |
| dc.identifier.other | EE 2020 K36 PhD | |
| dc.identifier.uri | https://digitalarchive.library.bogazici.edu.tr/handle/123456789/13155 | |
| dc.publisher | Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020. | |
| dc.subject.lcsh | Smart cards. | |
| dc.subject.lcsh | Nanotechnology. | |
| dc.title | A high voltage triboelectric energy harvesting system utilizing parallel-SSHI rectifier and DC-DC converters for SUB-5 hz motions |
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