A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated

Zhengge Chen; Pooya Davari; Huai Wang

A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

6 Citations (Scopus)

217 Downloads (Pure)

Abstract

The inherent dead angles of the input line current in buck power factor correction (PFC) converter deteriorate the power factor (PF) and commonly extra switches with high control complexity are required to eliminate these dead angles. Alternatively, this paper proposed a topological solution using a simple single voltage loop control. The proposed switch integrated bridgeless buck-flyback PFC converter operates in buck-flyback mode and can automatically change to flyback mode when the dead angles occur. Bridgeless operation modes of the proposed converter are achieved by dual converter cells and the corresponding PF expression is derived. Besides, the inductors and transformers ratio is analyzed to ensure the high PF (>0.99) and the satisfactory input current harmonics (meet the IEC 61000-3-2 Class D limits) in the 100~240 Vac input voltage range. The 100 W prototypes of the conventional buck and the proposed converters are built for experimental tests, which confirm the effectiveness of the proposed topology.

Original language	English
Title of host publication	Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages	8
Publisher	IEEE Press
Publication date	May 2019
Pages	1420-1427
Article number	8797303
ISBN (Electronic)	9788957083130
Publication status	Published - May 2019
Event	2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of Duration: 27 May 2019 → 30 May 2019

Conference

Conference	2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Country/Territory	Korea, Republic of
City	Busan
Period	27/05/2019 → 30/05/2019

Series	International Conference on Power Electronics
ISSN	2150-6078

Keywords

Dead angles eliminated
Switches integrated
Bridgeless Buck-flyback ,
High PF

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A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles EliminatedSubmitted manuscript, 3.71 MB

https://ieeexplore.ieee.org/document/8797303

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Topology Derivation and Mission Profile Based Modeling of Bridgeless PFC Converters
Chen, Z., Davari, P. & Wang, H.
01/02/2018 → 19/02/2021
Project: PhD Project

Cite this

@inproceedings{260e131198614a0bae5fb0251a28bade,

title = "A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated",

abstract = "The inherent dead angles of the input line current in buck power factor correction (PFC) converter deteriorate the power factor (PF) and commonly extra switches with high control complexity are required to eliminate these dead angles. Alternatively, this paper proposed a topological solution using a simple single voltage loop control. The proposed switch integrated bridgeless buck-flyback PFC converter operates in buck-flyback mode and can automatically change to flyback mode when the dead angles occur. Bridgeless operation modes of the proposed converter are achieved by dual converter cells and the corresponding PF expression is derived. Besides, the inductors and transformers ratio is analyzed to ensure the high PF (>0.99) and the satisfactory input current harmonics (meet the IEC 61000-3-2 Class D limits) in the 100~240 Vac input voltage range. The 100 W prototypes of the conventional buck and the proposed converters are built for experimental tests, which confirm the effectiveness of the proposed topology.",

keywords = "Dead angles eliminated, Switches integrated, Bridgeless Buck-flyback ,, High PF",

author = "Zhengge Chen and Pooya Davari and Huai Wang",

year = "2019",

month = may,

language = "English",

series = "International Conference on Power Electronics",

publisher = "IEEE Press",

pages = "1420--1427",

booktitle = "Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)",

note = "2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) ; Conference date: 27-05-2019 Through 30-05-2019",

}

Chen, Z, Davari, P & Wang, H 2019, A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated. in Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)., 8797303, IEEE Press, International Conference on Power Electronics, pp. 1420-1427, 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), Busan, Korea, Republic of, 27/05/2019. <https://ieeexplore.ieee.org/document/8797303>

A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated. / Chen, Zhengge; Davari, Pooya ; Wang, Huai.
Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia). IEEE Press, 2019. p. 1420-1427 8797303 (International Conference on Power Electronics).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated

AU - Chen, Zhengge

AU - Davari, Pooya

AU - Wang, Huai

PY - 2019/5

Y1 - 2019/5

N2 - The inherent dead angles of the input line current in buck power factor correction (PFC) converter deteriorate the power factor (PF) and commonly extra switches with high control complexity are required to eliminate these dead angles. Alternatively, this paper proposed a topological solution using a simple single voltage loop control. The proposed switch integrated bridgeless buck-flyback PFC converter operates in buck-flyback mode and can automatically change to flyback mode when the dead angles occur. Bridgeless operation modes of the proposed converter are achieved by dual converter cells and the corresponding PF expression is derived. Besides, the inductors and transformers ratio is analyzed to ensure the high PF (>0.99) and the satisfactory input current harmonics (meet the IEC 61000-3-2 Class D limits) in the 100~240 Vac input voltage range. The 100 W prototypes of the conventional buck and the proposed converters are built for experimental tests, which confirm the effectiveness of the proposed topology.

AB - The inherent dead angles of the input line current in buck power factor correction (PFC) converter deteriorate the power factor (PF) and commonly extra switches with high control complexity are required to eliminate these dead angles. Alternatively, this paper proposed a topological solution using a simple single voltage loop control. The proposed switch integrated bridgeless buck-flyback PFC converter operates in buck-flyback mode and can automatically change to flyback mode when the dead angles occur. Bridgeless operation modes of the proposed converter are achieved by dual converter cells and the corresponding PF expression is derived. Besides, the inductors and transformers ratio is analyzed to ensure the high PF (>0.99) and the satisfactory input current harmonics (meet the IEC 61000-3-2 Class D limits) in the 100~240 Vac input voltage range. The 100 W prototypes of the conventional buck and the proposed converters are built for experimental tests, which confirm the effectiveness of the proposed topology.

KW - Dead angles eliminated

KW - Switches integrated

KW - Bridgeless Buck-flyback ,

KW - High PF

M3 - Article in proceeding

T3 - International Conference on Power Electronics

SP - 1420

EP - 1427

BT - Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)

PB - IEEE Press

T2 - 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)

Y2 - 27 May 2019 through 30 May 2019

ER -

A Bridgeless Buck-flyback PFC Converter with High PF and Dead Angles Eliminated

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Keywords

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Topology Derivation and Mission Profile Based Modeling of Bridgeless PFC Converters

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