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Description
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

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.
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    Details

    Title
    • Single-inductor, dual-input CCM boost converter for multi-junction PV energy harvesting
    Contributors
    Date Created
    2017
    Resource Type
  • Text
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    Note
    • thesis
      Partial requirement for: M.S., Arizona State University, 2017
    • bibliography
      Includes bibliographical references (pages 42-43)
    • Field of study: Engineering

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    by Qirong Peng

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