TY - GEN
T1 - Single-Stage Flyback AC-DC Converter with Primary-Side Controlled DCM/CCM Operations
AU - Wu, Wei Jiun
AU - Liang, Tsorng Juu
AU - Chen, Kai Hui
AU - Tseng, Wei Jing
N1 - Funding Information:
This paper was supported by the Ministry of Science and Technology in Taiwan under project number MOST 109-2221-E-006-102-and 109-3116-F-006-019-CC1 and Hierarchical Green-Energy Materials Research Center.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/29
Y1 - 2020/11/29
N2 - In this paper, primary side regulation (PSR) technology for single-stage flyback converter in discontinuous conduction mode (DCM) and continuous conduction mode (CCM) operations is presented. The output voltage and current are estimated by sensing the auxiliary winding voltage and the power switch current without the secondary-side output feedback circuits. In this paper, the algorithm used for PSR allows the magnetizing current to be operated in DCM and CCM. Therefore, the PSR flyback converter is suitable for wide input voltage range and wide output power range applications. Finally, the control algorithm is implemented with the digital control to achieve high power factor with 90-264 Vrms universal input voltage and 24 V/96 W output voltage and rated output power. Experimental results show the power factor is higher than 0.93 and the output voltage control accuracy and output current accuracy are within 6.25% and 8%, respectively under the universal input voltage range conditions. The highest system efficiency is 88.3%.
AB - In this paper, primary side regulation (PSR) technology for single-stage flyback converter in discontinuous conduction mode (DCM) and continuous conduction mode (CCM) operations is presented. The output voltage and current are estimated by sensing the auxiliary winding voltage and the power switch current without the secondary-side output feedback circuits. In this paper, the algorithm used for PSR allows the magnetizing current to be operated in DCM and CCM. Therefore, the PSR flyback converter is suitable for wide input voltage range and wide output power range applications. Finally, the control algorithm is implemented with the digital control to achieve high power factor with 90-264 Vrms universal input voltage and 24 V/96 W output voltage and rated output power. Experimental results show the power factor is higher than 0.93 and the output voltage control accuracy and output current accuracy are within 6.25% and 8%, respectively under the universal input voltage range conditions. The highest system efficiency is 88.3%.
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U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9367946
DO - 10.1109/IPEMC-ECCEAsia48364.2020.9367946
M3 - Conference contribution
AN - SCOPUS:85103167134
T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
SP - 430
EP - 437
BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Y2 - 29 November 2020 through 2 December 2020
ER -