A digitally variable on-time controlled PFC flyback converter with primary-side regulation

Heng Ci Lin, Wei Ming Chu, Chien-Hung Tsai, Wei Cheng Su

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a digital variable on-time control (VOT) and primary side regulation (PSR) applied to a power factor correction (PFC) flyback converter is realized. This PFC flyback converter is operated in the critical conduction mode (CRM). Compared with constant on-time control (COT), VOT control can decrease total harmonic distortion (THD) of input current and make high power factor (PF). The method which is used to obtain output voltage is PSR. This method can sense output voltage by auxiliary wind without opto-coupler. This PFC flyback converter worked in universal input voltage 90∼264Vac and the output power is 36W with output DC voltage 36V. The proposed control method is implemented by field-programmable gate array (FPGA). Experimental result are shown that PF is higher than 0.95 and THD is less than 10%.

Original languageEnglish
Title of host publicationProceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)9781538614457
DOIs
Publication statusPublished - 2018 Jun 22
Event7th International Symposium on Next-Generation Electronics, ISNE 2018 - Taipei, Taiwan
Duration: 2018 May 72018 May 9

Publication series

NameProceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018

Other

Other7th International Symposium on Next-Generation Electronics, ISNE 2018
CountryTaiwan
CityTaipei
Period18-05-0718-05-09

Fingerprint

converters
Harmonic distortion
Electric potential
output
electric potential
harmonics
Field programmable gate arrays (FPGA)
field-programmable gate arrays
couplers
direct current
conduction

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

Cite this

Lin, H. C., Chu, W. M., Tsai, C-H., & Su, W. C. (2018). A digitally variable on-time controlled PFC flyback converter with primary-side regulation. In Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018 (pp. 1-4). (Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISNE.2018.8394705
Lin, Heng Ci ; Chu, Wei Ming ; Tsai, Chien-Hung ; Su, Wei Cheng. / A digitally variable on-time controlled PFC flyback converter with primary-side regulation. Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-4 (Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018).
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abstract = "In this paper, a digital variable on-time control (VOT) and primary side regulation (PSR) applied to a power factor correction (PFC) flyback converter is realized. This PFC flyback converter is operated in the critical conduction mode (CRM). Compared with constant on-time control (COT), VOT control can decrease total harmonic distortion (THD) of input current and make high power factor (PF). The method which is used to obtain output voltage is PSR. This method can sense output voltage by auxiliary wind without opto-coupler. This PFC flyback converter worked in universal input voltage 90∼264Vac and the output power is 36W with output DC voltage 36V. The proposed control method is implemented by field-programmable gate array (FPGA). Experimental result are shown that PF is higher than 0.95 and THD is less than 10{\%}.",
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Lin, HC, Chu, WM, Tsai, C-H & Su, WC 2018, A digitally variable on-time controlled PFC flyback converter with primary-side regulation. in Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018. Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018, Institute of Electrical and Electronics Engineers Inc., pp. 1-4, 7th International Symposium on Next-Generation Electronics, ISNE 2018, Taipei, Taiwan, 18-05-07. https://doi.org/10.1109/ISNE.2018.8394705

A digitally variable on-time controlled PFC flyback converter with primary-side regulation. / Lin, Heng Ci; Chu, Wei Ming; Tsai, Chien-Hung; Su, Wei Cheng.

Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-4 (Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Lin HC, Chu WM, Tsai C-H, Su WC. A digitally variable on-time controlled PFC flyback converter with primary-side regulation. In Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-4. (Proceedings - 2018 7th International Symposium on Next-Generation Electronics, ISNE 2018). https://doi.org/10.1109/ISNE.2018.8394705