TY - GEN
T1 - Power factor improvement of flyback PFC converter operating at the light load
AU - Kim, Minsung
AU - Montes, Oscar Andres
AU - Son, Sungho
AU - Choi, Yoon Geol
AU - Kim, Minjae
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - We propose a duty-ratio feed-forward controller for flyback power factor correction (PFC) converters operating in discontinuous conduction mode (DCM). For PFC applications, the power factor (PF) of the input current must be high under most load conditions. To improve PF of the flyback converter even under light load, we propose a compensation method for input capacitor current. The proposed controller significantly improves the displacement factor as well as the distortion factor, and therefore fly-back PFC converter can achieve the high power quality. Meanwhile, the output voltage of the PFC converter is well regulated. The derivation of the proposed method is presented and effectiveness of the proposed method is demonstrated in experiments with a 100-W rated power prototype.
AB - We propose a duty-ratio feed-forward controller for flyback power factor correction (PFC) converters operating in discontinuous conduction mode (DCM). For PFC applications, the power factor (PF) of the input current must be high under most load conditions. To improve PF of the flyback converter even under light load, we propose a compensation method for input capacitor current. The proposed controller significantly improves the displacement factor as well as the distortion factor, and therefore fly-back PFC converter can achieve the high power quality. Meanwhile, the output voltage of the PFC converter is well regulated. The derivation of the proposed method is presented and effectiveness of the proposed method is demonstrated in experiments with a 100-W rated power prototype.
KW - Capacitor current
KW - Feed-forward controller
KW - Power factor improvement
KW - Single-stage PFC
KW - Total harmonic distortion
UR - http://www.scopus.com/inward/record.url?scp=85067117583&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8721956
DO - 10.1109/APEC.2019.8721956
M3 - Conference contribution
AN - SCOPUS:85067117583
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 3019
EP - 3023
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -