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A Current-to-Voltage DC-DC Converter for Powering Backbone Devices of Scientific Cabled Seafloor Observatories

Author

Listed:
  • Jiayu Zhu

    (State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
    School of Ocean and Earth Science, Tongji University, Shanghai 200092, China)

  • Feng Lyu

    (State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
    School of Ocean and Earth Science, Tongji University, Shanghai 200092, China
    Center for Marine Science and Technology, Tongji University, Shanghai 201306, China)

Abstract

In scientific cabled seafloor observatories, branching units and optical repeaters are essential backbone devices, in which zener diodes are commonly used in their power supply circuits. However, the low efficiency of zener-diode-based power feeding modules under large currents makes for a significant threat to the long-term reliability of backbone devices. In this paper, a novel full-bridge DC-DC converter with a duty-cycle-overlap control (DCOC) strategy is proposed to achieve high-efficiency current-to-voltage conversion. The circuit design of the converter and the principle of the DCOC strategy are analyzed. A prototype of the converter is implemented to demonstrate the feasibility of the proposed power feeding approach for large-scale cabled seafloor observatories.

Suggested Citation

  • Jiayu Zhu & Feng Lyu, 2019. "A Current-to-Voltage DC-DC Converter for Powering Backbone Devices of Scientific Cabled Seafloor Observatories," Energies, MDPI, vol. 12(12), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2261-:d:239440
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