Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/Hannan/525073
Title: Variable-On-Time Control to Achieve High Input Power Factor for a CRM-Integrated Buck–Flyback PFC Converter
Authors: Abdul Hakeem Memon;Kai Yao;Qingwei Chen;Jian Guo;Wenbin Hu
Year: 2017
Publisher: IEEE
Abstract: A variable-on-time (VOT) control scheme for a critical conduction mode (CRM) integrated buck-flyback power factor correction (PFC) converter with high power factor (PF) and low total harmonic distortion (THD) is proposed in this paper. By utilizing the input and output voltage to modulate the on-time of both buck and flyback switches, the input current harmonics can be eliminated and high PF will be obtained. The operating principles of both the conventional constant-on-time (COT) control and VOT control for the CRM buck-flyback PFC converter are analyzed. A 100-W prototype has been built and tested in the lab. The experimental results demonstrate that the THD and PF of the converter with VOT control are greatly improved compared to those with COT control.
URI: http://dl.kums.ac.ir/handle/Hannan/525073
volume: 32
issue: 7
More Information: 5312,
5322
Appears in Collections:2017

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Title: Variable-On-Time Control to Achieve High Input Power Factor for a CRM-Integrated Buck–Flyback PFC Converter
Authors: Abdul Hakeem Memon;Kai Yao;Qingwei Chen;Jian Guo;Wenbin Hu
Year: 2017
Publisher: IEEE
Abstract: A variable-on-time (VOT) control scheme for a critical conduction mode (CRM) integrated buck-flyback power factor correction (PFC) converter with high power factor (PF) and low total harmonic distortion (THD) is proposed in this paper. By utilizing the input and output voltage to modulate the on-time of both buck and flyback switches, the input current harmonics can be eliminated and high PF will be obtained. The operating principles of both the conventional constant-on-time (COT) control and VOT control for the CRM buck-flyback PFC converter are analyzed. A 100-W prototype has been built and tested in the lab. The experimental results demonstrate that the THD and PF of the converter with VOT control are greatly improved compared to those with COT control.
URI: http://dl.kums.ac.ir/handle/Hannan/525073
volume: 32
issue: 7
More Information: 5312,
5322
Appears in Collections:2017

Files in This Item:
File Description SizeFormat 
7565549.pdf1.11 MBAdobe PDFThumbnail
Preview File
Title: Variable-On-Time Control to Achieve High Input Power Factor for a CRM-Integrated Buck–Flyback PFC Converter
Authors: Abdul Hakeem Memon;Kai Yao;Qingwei Chen;Jian Guo;Wenbin Hu
Year: 2017
Publisher: IEEE
Abstract: A variable-on-time (VOT) control scheme for a critical conduction mode (CRM) integrated buck-flyback power factor correction (PFC) converter with high power factor (PF) and low total harmonic distortion (THD) is proposed in this paper. By utilizing the input and output voltage to modulate the on-time of both buck and flyback switches, the input current harmonics can be eliminated and high PF will be obtained. The operating principles of both the conventional constant-on-time (COT) control and VOT control for the CRM buck-flyback PFC converter are analyzed. A 100-W prototype has been built and tested in the lab. The experimental results demonstrate that the THD and PF of the converter with VOT control are greatly improved compared to those with COT control.
URI: http://dl.kums.ac.ir/handle/Hannan/525073
volume: 32
issue: 7
More Information: 5312,
5322
Appears in Collections:2017

Files in This Item:
File Description SizeFormat 
7565549.pdf1.11 MBAdobe PDFThumbnail
Preview File