Journal of Electromagnetic Engineering and Science (May 2023)

LTCC-Based DC-DC Converter for Reduction of Switching Noise and Radiated Emissions

  • Hyun Gyu Jang,
  • Dong Yun Jung,
  • Yong Ha Lee,
  • Doohyung Cho,
  • Kun Sik Park,
  • Jong-Won Lim,
  • Wonkyo Kim,
  • Joomin Park,
  • Ick-Jae Yoon

DOI
https://doi.org/10.26866/jees.2023.3.r.165
Journal volume & issue
Vol. 23, no. 3
pp. 251 – 258

Abstract

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In this study, a low-temperature co-fired ceramic (LTCC)-based direct current (DC)-DC converter is proposed for reducing stray inductance and mitigating electromagnetic interference. The dominant radiating loop of the proposed LTCC-based DC-DC converter features a multilayer design, which helps suppress noise sources and reduce radiated emissions. The peak voltage of switching noise for the proposed DC-DC converter at the frequency of 500 kHz is approximately 8.98% lower than that of a conventional DC-DC converter. In addition, the radiated emission level of the proposed DC-DC converter is lower than that of the conventional DC-DC converter. In sum, the proposed LTCC-technology-based multilayer design reduces the peak voltage of switching noise and the radiated emission of the DC-DC converter.

Keywords