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

2 Citations (Scopus)

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

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'A digitally variable on-time controlled PFC flyback converter with primary-side regulation'. Together they form a unique fingerprint.

  • 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