Design and implementation of a Power Management Integrated Circuit for Active EMI Filters

  • Sang Yeong Jeong Ulsan National Institute of Science and Technology
  • Jin Gook Kim Ulsan National Institute of Science and Technology
DOI: https://doi.org/10.23075/jicas.2023.9.3.001
Keywords: Active EMI Filter(AEF), Bipolar-CMOS-DMOS(BCD) porcess, Conducted Emission(CE), Electromagnetic Interference(EMI), Integrated Circuits(ICs), Power Management Integrated Circuit(PMIC)

Abstract

This paper proposes the design of power management integrated circuit (PMIC) within the active EMI filter (AEF). The buck converter has been implemented with AEF circuit. The designed IC is fabricated by TSMC 180nm BCD process. Semiconductor layout design including the above PWM signal generation circuit, 45V Power NDMOS and gate driver, and the overall size of the Buck converter is 2500um*2500um. The performance of the buck converter has been measured by oscilloscope after chip on board (COB) process. Input voltage range was 15v to 36v to generate 12V, and peak efficiency was measured as 66%. The AEF achieves better noise attenuation performance than 2stage L-C PEF as about 6dB at 150khz, and the designed 1stage AEF totally attenuates 36dB from the bare noise without any resonance peak at over 1Mhz unlike the case of 2 stage L-C PEF. The active EMI filter with PMIC has been achieved better performance than larger size of passive EMI filter.

Author Biographies

Sang Yeong Jeong, Ulsan National Institute of Science and Technology

Sangyeong Jeong received the B.S. degree in electrical engineering from the Ulsan National Institute of Science and Technology, Ulsan, South Korea, in 2015, where he is currently pursuing the Ph. D. degree. His current research interests include electromagnetic compatibility (EMC) problems in the power system and the noise reduction techniques by using integrated circuits (ICs).

Jin Gook Kim, Ulsan National Institute of Science and Technology

Jingook Kim (M’09-SM’15) received his B.S., M.S., and Ph.D. degrees in electrical engineering from Korea Advanced Institute of Science and Technology, Daejeon, Korea, in 2000, 2002, and 2006, respectively. From 2006 to 2008, he was with DRAM design team in Memory Division of Samsung Electronics, Hwaseong, Korea, as a senior engineer. From January 2009 to July 2011, he worked for the EMC Laboratory at the Missouri University of Science and Technology, Missouri, USA, as a postdoc fellow. In July 2011, he joined the Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea, where he is currently a professor. His current research interests include EMC, ESD, RF interference, and analog circuits design.

Homepage : https://jingook.unist.ac.kr/

Published
2023-06-30
How to Cite
Jeong, S. Y., & Kim, J. G. (2023). Design and implementation of a Power Management Integrated Circuit for Active EMI Filters. Journal of Integrated Circuits and Systems, 9(3). https://doi.org/10.23075/jicas.2023.9.3.001
Issue
Vol 9 No 3 (2023)
Section
Articles