TY - GEN
T1 - Primary-Side-Controlled AC-DC Single-Stage Active Clamp Flyback Converter
AU - Fu-Zhi, Lin
AU - Liang, Tsorng Juu
AU - Chen, Kai Hui
AU - Liao, Kuo Fu
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this study, a primary-side regulation controller for single-stage active clamp flyback (ACF) converter is proposed. The relationship between the primary-side current and the secondary-side current is investigated. By sensing midpoint current of power switch and auxiliary winding voltage in primary side, the output voltage and current estimations are achieved. Also, the dual loop controller with the inner loop and outer loop for power factor correction and output voltage/current regulation, respectively, is proposed. The proposed control method is verified by building an experimental prototype with rated power of 100 W (20 V/5 A), universal input voltage of 90-264 Vac, and switching frequency of 60 kHz. The micro-controller dsPIC33CK256MP508 is used to realize the proposed controller. The experimental results show that the output voltage and current control errors are within 7.15% and 6%, respectively. Moreover, the power factor is higher than 0.92, and the highest efficiency achieved is 91.2%.
AB - In this study, a primary-side regulation controller for single-stage active clamp flyback (ACF) converter is proposed. The relationship between the primary-side current and the secondary-side current is investigated. By sensing midpoint current of power switch and auxiliary winding voltage in primary side, the output voltage and current estimations are achieved. Also, the dual loop controller with the inner loop and outer loop for power factor correction and output voltage/current regulation, respectively, is proposed. The proposed control method is verified by building an experimental prototype with rated power of 100 W (20 V/5 A), universal input voltage of 90-264 Vac, and switching frequency of 60 kHz. The micro-controller dsPIC33CK256MP508 is used to realize the proposed controller. The experimental results show that the output voltage and current control errors are within 7.15% and 6%, respectively. Moreover, the power factor is higher than 0.92, and the highest efficiency achieved is 91.2%.
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U2 - 10.1109/ECCE53617.2023.10362010
DO - 10.1109/ECCE53617.2023.10362010
M3 - Conference contribution
AN - SCOPUS:85182919523
T3 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
SP - 3407
EP - 3414
BT - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Y2 - 29 October 2023 through 2 November 2023
ER -