A High Power Density Zero-Voltage-Switching Totem-Pole Power Factor Correction Converter

Tausif A., BAKAN A. F., Dusmez S.

IEEE Transactions on Power Electronics, vol.39, no.1, pp.837-849, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 39 Issue: 1
  • Publication Date: 2024
  • Doi Number: 10.1109/tpel.2023.3326077
  • Journal Name: IEEE Transactions on Power Electronics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.837-849
  • Keywords: AC-DC converter, electric vehicle, on-board charger, power factor correction (PFC), totem-pole (TP), zero-voltage-switching (ZVS)
  • Yıldız Technical University Affiliated: Yes

Abstract

The power factor correction (PFC) circuit is an essential component in high-power supplies with non-linear loads, occupying nearly half the size of a typical power supply. To minimize the size of passive components in PFC converters, the switching frequency must be increased to several hundred kHz, a challenge even when employing Gallium Nitride (GaN) devices under hard-switching conditions. This paper proposes a new GaN based Totem-pole (TP) PFC converter integrated with a bidirectional soft switching cell. Unlike critical-conduction-mode TP PFC circuit, the proposed converter operates in continuous conduction-mode with simple control. Design considerations and optimization of soft-switching cell are discussed and verified with simulations. As a proof of concept, a two-phase interleaved version of the proposed converter rated at 3700 W has been designed. The designed prototype achieves a peak efficiency of 99.14% and surpasses the hard-switched GaN based TP PFC converters in both power density and cost.