abstract: This thesis presents a power harvesting system combining energy from sub-cells of
multi-junction photovoltaic (MJ-PV) cells. A dual-input, inductor time-sharing boost
converter in continuous conduction mode (CCM) is proposed. A hysteresis inductor current
regulation in designed to reduce cross regulation caused by inductor-sharing in CCM. A
modified hill-climbing algorithm is implemented to achieve maximum power point
tracking (MPPT). A dual-path architecture is implemented to provide a regulated 1.8V
output. A proposed lossless current sensor monitors transient inductor current and a time-based power monitor is proposed to monitor PV power. The PV input provides power of
65mW. Measured results show that the peak efficiency achieved is around 85%. The
power switches and control circuits are implemented in standard 0.18um CMOS process. / Dissertation/Thesis / Masters Thesis Engineering 2017
| Identifer | oai:union.ndltd.org:asu.edu/item:44995 |
| Date | January 2017 |
| Contributors | Peng, Qirong (Author), Kiaei, Sayfe (Advisor), Bakkaloglu, Bertan (Committee member), Ogras, Umit (Committee member), Arizona State University (Publisher) |
| Source Sets | Arizona State University |
| Language | English |
| Detected Language | English |
| Type | Masters Thesis |
| Format | 51 pages |
| Rights | http://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved |
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