An Ultra-Fast Very Large Scale Interleaved Li-Fi Transmitter

Daniel H. Zhou, Konstantinos Manos, Minjie Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper combines multiphase and multilevel interleaving using distributed active switches and integrated magnetics into a unified very large scale interleaving (VLSI) technique to develop ultra-fast power electronics with outstanding large-signal tracking capability. The large-signal reference-tracking capabilities considering the fundamental sampling limit, modulator, and output filter are derived, including how reduced-amplitude, above-switching-frequency tracking is possible for highly interleaved converters. The capabilities of very large scale interleaving are demonstrated with a 64× interleaved, four-phase, 17-level FCML converter enabled by passive flying capacitor balancing provided by a four-phase tightly coupled inductor. The applicability and efficacy of the theory are verified by using the converter to directly power a 400 W Li-Fi transmitter communicating with OOK/16-QAM at 2.4× the switching frequency and 95.5% efficiency.

Original languageEnglish (US)
Title of host publicationAPEC 2025 - 14th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1693-1700
Number of pages8
ISBN (Electronic)9798331516116
DOIs
StatePublished - 2025
Event14th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2025 - Atlanta, United States
Duration: Mar 16 2025Mar 20 2025

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
ISSN (Print)1048-2334
ISSN (Electronic)2470-6647

Conference

Conference14th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2025
Country/TerritoryUnited States
CityAtlanta
Period3/16/253/20/25

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • coupled inductors
  • flying capacitor multilevel converters
  • interleaving
  • Li-Fi
  • multilevel
  • multiphase
  • transmitter

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