TY - GEN
T1 - A Wide Load Range and Low Current Distortion Digital Boost PFC Converter With Mixed Conduction Mode Operation
AU - Hsu, Lei
AU - Cheng, Jen Chieh
AU - Yeh, Wei Ting
AU - Tsai, Chien Hung
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this paper, a digitally controlled boost power factor correction (PFC) converter suitable for universal AC voltage range LCD TV applications is proposed. The proposed mixed conduction mode (MCM) algorithm not only improves the problem of inaccurate sampling of the average current in discontinuous conduction mode (DCM), but also accelerates the dynamic response of the current loop through the duty ratio feedforward (DFF) mechanism. This work reduces conduction losses by sampling average switch current information and improves light-load current distortion in conventional digital average current mode control (ACM) boost PFC converters. The maximum improvement of total harmonic distortion (THD) is about 20%.
AB - In this paper, a digitally controlled boost power factor correction (PFC) converter suitable for universal AC voltage range LCD TV applications is proposed. The proposed mixed conduction mode (MCM) algorithm not only improves the problem of inaccurate sampling of the average current in discontinuous conduction mode (DCM), but also accelerates the dynamic response of the current loop through the duty ratio feedforward (DFF) mechanism. This work reduces conduction losses by sampling average switch current information and improves light-load current distortion in conventional digital average current mode control (ACM) boost PFC converters. The maximum improvement of total harmonic distortion (THD) is about 20%.
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U2 - 10.1109/GCCE59613.2023.10315563
DO - 10.1109/GCCE59613.2023.10315563
M3 - Conference contribution
AN - SCOPUS:85179757223
T3 - GCCE 2023 - 2023 IEEE 12th Global Conference on Consumer Electronics
SP - 1168
EP - 1171
BT - GCCE 2023 - 2023 IEEE 12th Global Conference on Consumer Electronics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th IEEE Global Conference on Consumer Electronics, GCCE 2023
Y2 - 10 October 2023 through 13 October 2023
ER -