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In this paper, a single-inductor triple-input-triple-output (SITITO) buck-boost converter with cycle-by-cycle source tracking (CCST) is developed for multi-source energy harvesting. The proposed CCST is capable of harvesting power from the PV and TEG simultaneously, and automatically selects the appropriate source according to the maximum power point (MPP) of the transducers in each switching cycle...
In this brief, we present a digital pulsewidth modulation buck converter with a switching loss reduction scheme to improve conversion efficiency at light load conditions. The proposed switching loss reduction scheme combines power-stage voltage swing scaling, transistor width scaling, and controller voltage scaling to reduce the dynamic power dissipation of the system. The power-stage voltage swing...
In this paper, a single-inductor dual-input dual-output (SIDIDO) power converter with sequential pulse-skip modulation (SPSM) is proposed for IoT applications. It manages power from a 1.4-V zinc-air battery and a 0.55-V to 0.7-V photovoltaic (PV) module to prolong the battery life. The proposed converter employs buck-boost mode and buck mode for PV module and the battery, respectively, to produce...
This paper proposes a 2 GOPS quad-mean shift processor (Q-MSP) architecture for data clustering and machine learning applications. By exploiting the linear approximation approach and early termination mechanism, the proposed algorithm can reduce 70% and 40% computational complexity, respectively. Moreover, 4 mean shift processor cores are integrated into the proposed architecture to support parallel...
Inverted organic solar cells (IOSCs) employing solution-processed blocking layers have been fabricated and characterized. A sol-gel-derived aluminum doped zinc oxide (AZO) film is used as a hole blocking layer (HBL) and a solvent-dissolved nickel oxide (NiO) is an electron blocking layer (EBL). The effects of blocking layer on the opto-electronic characteristics of IOSCs are investigated. The IOSC...
In this study, inverted organic solar cells (IOSCs) have been fabricated and characterized. Device's structure consists of the blend of poly(3-hexythiophene)(P3HT) and [6,6]-phenyl C61-butyric acid methyl ester(PCBM) as an active layer and a solution process of ZnO and V2O5 as a hole blocking layer (HBL) and electron blocking layer (EBL), respectively. The blocking layer possesses high charge mobility...
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