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High-Efficiency DC–DC Converter with Charge-Recycling Gate-Voltage Swing Control

Author

Listed:
  • Jung-Duk Suh

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Yeong-Ho Yun

    (Memory Division, Samsung Electronics Co., Ltd., Hwasung 445701, Korea)

  • Bai-Sun Kong

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea)

Abstract

This paper proposes a high-efficiency DC–DC converter with charge-recycling gate-voltage swing control with a light load. By achieving a variable gate-voltage swing in a very efficient manner by charge recycling, the power efficiency has been substantially improved due to the lower power consumption and the achieved balance between the switching and conduction losses. A test chip was fabricated using 65-nm CMOS technology. The proposed design reduces the gate-driving loss by up to 87.7% and 47.2% compared to the conventional full-swing and low-swing designs, respectively. The maximum power conversion efficiency was 90.3% when the input and output voltages are 3.3 V and 1.8 V, respectively.

Suggested Citation

  • Jung-Duk Suh & Yeong-Ho Yun & Bai-Sun Kong, 2019. "High-Efficiency DC–DC Converter with Charge-Recycling Gate-Voltage Swing Control," Energies, MDPI, vol. 12(5), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:5:p:899-:d:212111
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    Cited by:

    1. Se-Un Shin, 2019. "An Analysis of Non-Isolated DC-DC Converter Topologies with Energy Transfer Media," Energies, MDPI, vol. 12(8), pages 1-19, April.

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