FPGA-based system for electromagnetic interference evaluation in random modulated DC/DC converters

Hermes Loschi*, Piotr Lezynski, Robert Smolenski, Douglas Nascimento, Wojciech Sleszynski

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)
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Field-Programmable Gate Array (FPGA) provides the possibility to design new “electromagnetic compatibility (EMC) friendly” control techniques for power electronic converters. Such control techniques use pseudo-random modulators (RanM) to control the converter switches. However, some issues connected with the FPGA-based design of RanM, such as matching the range of fixed-point numbers, might be challenging. The modern programming tools, such as LabVIEW, may facilitate the design process, but there are still fixed-point operations and limitations in arithmetic operations. This paper presents the design insights on the FPGA-based EMC friendly control system for DC/DC converter. Probability density functions (PDF) are used to analyse and improve pseudo-random algorithms. The theoretical algorithms, hardware details and experimental results are presented and discussed in terms of conducted electromagnetic interference emission.

Original languageEnglish
Article number2389
Issue number9
Publication statusPublished - May 2020
Externally publishedYes


  • Conducted interference
  • DC-DC power converters
  • Electromagnetic compatibility
  • FPGA
  • Random modulation
  • Systems control

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