Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers

This paper proposes an AC/DC single-stage structure by integrating a boost topology and an active clamp flyback (ACF) circuit with power-factor-correction (PFC) function. The PFC function can be achieved by controlling a boost PFC topology operated in the discontinuous conduction mode. With the coor...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sen-Tung Wu, Yu-Ting Cheng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	active clamp flyback power-factor-correction soft-switching Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/44c9af6dae9f4b32917e927667580314
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:44c9af6dae9f4b32917e927667580314
record_format	dspace
spelling	oai:doaj.org-article:44c9af6dae9f4b32917e9276675803142021-11-11T15:37:14ZDesign and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers10.3390/electronics102125882079-9292https://doaj.org/article/44c9af6dae9f4b32917e9276675803142021-10-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2588https://doaj.org/toc/2079-9292This paper proposes an AC/DC single-stage structure by integrating a boost topology and an active clamp flyback (ACF) circuit with power-factor-correction (PFC) function. The PFC function can be achieved by controlling a boost PFC topology operated in the discontinuous conduction mode. With the coordination of active clamping components, a resonant technique is obtained and zero-voltage-switching (ZVS) can be achieved. The proposed converter is combined with the advantages of: (1) compared with two-stage circuit, a single stage circuit decreases the component of the main circuit and reduces the complexity of the control circuit; (2) a boost topology with PFC function operated in discontinuous conduction mode can be accomplished without adding any current detecting technique or detecting input signal; (3) by using the inductor from the PFC stage, ZVS function can be achieved without any additional inductor; (4) the increment of switching frequency facilitates the optimization of power density; (5) the conducting loss at the secondary side can be reduced by adding the synchronous rectification; (6) in this proposed scheme, the dual transformers with series-parallel connection are utilized, the current at the secondary side can be shared for lowering the conduction loss of the synchronous transistors. Finally, a prototype converter with AC 110 V input and DC 19 V/6.32 A (120 W) output under 300 kHz switching frequency is implemented. The efficiency of the proposed converter reaches 88.20% and 0.984 power factor in full load condition.Sen-Tung WuYu-Ting ChengMDPI AGarticleactive clamp flybackpower-factor-correctionsoft-switchingElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2588, p 2588 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	active clamp flyback power-factor-correction soft-switching Electronics TK7800-8360
spellingShingle	active clamp flyback power-factor-correction soft-switching Electronics TK7800-8360 Sen-Tung Wu Yu-Ting Cheng Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
description	This paper proposes an AC/DC single-stage structure by integrating a boost topology and an active clamp flyback (ACF) circuit with power-factor-correction (PFC) function. The PFC function can be achieved by controlling a boost PFC topology operated in the discontinuous conduction mode. With the coordination of active clamping components, a resonant technique is obtained and zero-voltage-switching (ZVS) can be achieved. The proposed converter is combined with the advantages of: (1) compared with two-stage circuit, a single stage circuit decreases the component of the main circuit and reduces the complexity of the control circuit; (2) a boost topology with PFC function operated in discontinuous conduction mode can be accomplished without adding any current detecting technique or detecting input signal; (3) by using the inductor from the PFC stage, ZVS function can be achieved without any additional inductor; (4) the increment of switching frequency facilitates the optimization of power density; (5) the conducting loss at the secondary side can be reduced by adding the synchronous rectification; (6) in this proposed scheme, the dual transformers with series-parallel connection are utilized, the current at the secondary side can be shared for lowering the conduction loss of the synchronous transistors. Finally, a prototype converter with AC 110 V input and DC 19 V/6.32 A (120 W) output under 300 kHz switching frequency is implemented. The efficiency of the proposed converter reaches 88.20% and 0.984 power factor in full load condition.
format	article
author	Sen-Tung Wu Yu-Ting Cheng
author_facet	Sen-Tung Wu Yu-Ting Cheng
author_sort	Sen-Tung Wu
title	Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
title_short	Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
title_full	Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
title_fullStr	Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
title_full_unstemmed	Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers
title_sort	design and implementation of a single-stage pfc active-clamp flyback converter with dual transformers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/44c9af6dae9f4b32917e927667580314
work_keys_str_mv	AT sentungwu designandimplementationofasinglestagepfcactiveclampflybackconverterwithdualtransformers AT yutingcheng designandimplementationofasinglestagepfcactiveclampflybackconverterwithdualtransformers
_version_	1718434981027512320

Design and Implementation of a Single-Stage PFC Active-Clamp Flyback Converter with Dual Transformers

Ejemplares similares