Operation analysis of GaN-based MHz ZVS bridgeless dual SEPIC PFC

Yunfeng Liu; Xiaosheng Huang; Yi Dou; Ouyang Ziwei; Michael A.E. Andersen

doi:10.1109/APEC42165.2021.9487329

Operation analysis of GaN-based MHz ZVS bridgeless dual SEPIC PFC

Yunfeng Liu
, Xiaosheng Huang
, Yi Dou
, Ouyang Ziwei
, Michael A.E. Andersen

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

Abstract

This paper presents an modified GaN-based bridgeless Dual single-ended primary inductor converter (SEPIC) PFC with full-range zero-voltage switching (ZVS) turn-on for the application of a step-down AC-DC converter. To achieve the ZVS turn-on for main switches, the conventional SEPIC PFC's synchronous diode is replaced by MOSFET. Thus, the synchronous switch can provide some negative current by adding more extra turn-on time after the current of the synchronous switch decrease to zero. Operational analysis of the bridgeless SEPIC PFC and theoretical analysis for the ZVS turn-on have been investigated. The analysis and design are verified by experimental results by a 97% peak efficiency 300 W prototype with a switching frequency range from 400 kHz to 1 MHz.

Original language	English
Title of host publication	Proceedings of 36^th Annual IEEE Applied Power Electronics Conference and Exposition
DOIs	https://doi.org/10.1109/APEC42165.2021.9487329
Publication status	Published - 2021

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10.1109/APEC42165.2021.9487329

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@inproceedings{d7bae37ba97b4a5eac2a53dda1c1ffe8,

title = "Operation analysis of GaN-based MHz ZVS bridgeless dual SEPIC PFC",

abstract = "This paper presents an modified GaN-based bridgeless Dual single-ended primary inductor converter (SEPIC) PFC with full-range zero-voltage switching (ZVS) turn-on for the application of a step-down AC-DC converter. To achieve the ZVS turn-on for main switches, the conventional SEPIC PFC's synchronous diode is replaced by MOSFET. Thus, the synchronous switch can provide some negative current by adding more extra turn-on time after the current of the synchronous switch decrease to zero. Operational analysis of the bridgeless SEPIC PFC and theoretical analysis for the ZVS turn-on have been investigated. The analysis and design are verified by experimental results by a 97\% peak efficiency 300 W prototype with a switching frequency range from 400 kHz to 1 MHz.",

author = "Yunfeng Liu and Xiaosheng Huang and Yi Dou and Ouyang Ziwei and Andersen, \{Michael A.E.\}",

year = "2021",

doi = "10.1109/APEC42165.2021.9487329",

language = "English",

isbn = "9781728189505 ",

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T1 - Operation analysis of GaN-based MHz ZVS bridgeless dual SEPIC PFC

AU - Liu, Yunfeng

AU - Huang, Xiaosheng

AU - Dou, Yi

AU - Ziwei, Ouyang

AU - Andersen, Michael A.E.

PY - 2021

Y1 - 2021

N2 - This paper presents an modified GaN-based bridgeless Dual single-ended primary inductor converter (SEPIC) PFC with full-range zero-voltage switching (ZVS) turn-on for the application of a step-down AC-DC converter. To achieve the ZVS turn-on for main switches, the conventional SEPIC PFC's synchronous diode is replaced by MOSFET. Thus, the synchronous switch can provide some negative current by adding more extra turn-on time after the current of the synchronous switch decrease to zero. Operational analysis of the bridgeless SEPIC PFC and theoretical analysis for the ZVS turn-on have been investigated. The analysis and design are verified by experimental results by a 97% peak efficiency 300 W prototype with a switching frequency range from 400 kHz to 1 MHz.

AB - This paper presents an modified GaN-based bridgeless Dual single-ended primary inductor converter (SEPIC) PFC with full-range zero-voltage switching (ZVS) turn-on for the application of a step-down AC-DC converter. To achieve the ZVS turn-on for main switches, the conventional SEPIC PFC's synchronous diode is replaced by MOSFET. Thus, the synchronous switch can provide some negative current by adding more extra turn-on time after the current of the synchronous switch decrease to zero. Operational analysis of the bridgeless SEPIC PFC and theoretical analysis for the ZVS turn-on have been investigated. The analysis and design are verified by experimental results by a 97% peak efficiency 300 W prototype with a switching frequency range from 400 kHz to 1 MHz.

UR - https://orbit.dtu.dk/en/publications/0451b3af-3b11-4a96-afe8-0a4fdc19ec9e

U2 - 10.1109/APEC42165.2021.9487329

DO - 10.1109/APEC42165.2021.9487329

M3 - Conference proceeding

SN - 9781728189505

BT - Proceedings of 36th Annual IEEE Applied Power Electronics Conference and Exposition

ER -

Operation analysis of GaN-based MHz ZVS bridgeless dual SEPIC PFC

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