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56 / 2024-07-26 15:50:44
ZVS Control For a GaN-Based CRM Totem-Pole PFC Converter With ZCD
Gallium Nitride (GaN), totem-pole, CRM, zero current detection (ZCD), zero-voltage-switching (ZVS).
2.Power Electronics Technology and Application > 1.Power Converter Topology
终稿
zhenbiao Lu / Huazhong University of Science and Technology
Hongfa Ding / Huazhong University of Science and Technology；Wuhan National High Magnetic Field Center;School of Electrical and Electronic Engineering
This paper presents a detailed analysis of a single-phase GaN-based power factor correction (PFC) critical-conduction-mode (CRM) totem-pole rectifier with zero-voltage-switching (ZVS) control. The paper thoroughly derives the ZVS strategy for full-line periodic zero-voltage switching and introduces a double-closed-loop analytical converter model integrated with a real-time computing module. A critical aspect of ZVS implementation is the zero-current detection (ZCD) module. Thus, the paper provides a detailed analysis of ZCD signal delays and performs quantitative calculations to compensate for these delays. Both a simulation model and a small power prototype are developed and tested. Experimental results demonstrate that the proposed control strategy effectively achieves CRM totem-pole zero-voltage switching.
重要日期

  • 会议日期

    11月06日

    2024

    至

    11月08日

    2024

  • 09月15日 2024

    初稿截稿日期

  • 11月08日 2024

    注册截止日期

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