Kara, İsmailBecermiş, MustafaKamar, Mohamed Abdel AalAktan, MustafaD?gan, HakanMutlu, Şenol2021-01-292021-01-292021Kara, İ., Becermiş, M., Kamar, M. A. A., Aktan, M., Doğan, H. ve Mutlu, Ş. (2021). A 70-to-2 v triboelectric energy harvesting system utilizing parallel-SSHI rectifier and DC-DC converters. IEEE Transactions on Circuits and Systems I: Regular Papers, 68(1), 210-223. https://dx.doi.org/10.1109/TCSI.2020.30254681549-83281558-0806https://dx.doi.org/10.1109/TCSI.2020.3025468https://hdl.handle.net/20.500.12511/6447In this article, first integrated circuit (IC) implementation of parallel synchronized switching harvesting on inductor (p-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 polytetrafluoroethylene (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 70-to-10 V buck converter followed by a 10-to-2 V switched capacitor DC-DC converter. A chip is manufactured in 0.18~mu text{m} HV BCD process with an active area of 6.25 mm2. End-to-end peak efficiency is measured as 32.71% for 1 Hz motion with a 722 mu text{W} total power delivery to the load for 4 ms.eninfo:eu-repo/semantics/embargoedAccessHarvesterHigh-VoltageTENGTriboelectrificationEnergy HarvestingSSHIRectifierBuck ConverterArticle68121022310.1109/TCSI.2020.3025468Q2Q1