TY - GEN
T1 - 4-Phase Series-capacitor Buck Converter
AU - Nguyen, Chan Viet
AU - Cha, Honnyong
AU - Bui, Van Dai
AU - Bang Pham, Tam Nguyen
AU - Ho, Phuong Thanh
AU - Phan, Quoc Dung
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The series-capacitor (SC) converter is an attractive choice due to its capacity for achieving a high step-down conversion ratio, reducing voltage stress on switching devices, and maintaining inherent current balance. To enhance power capacity and minimize output current fluctuations, a multi-phase series-capacitor configuration was introduced. However, as the number of phases increases, the operational range of the converter proportionally decreases by a factor of n, where n represents the number of phases. Consequently, the suitability of the multi-phase SC topology diminishes. This study introduces a 4-phase series-capacitor (4P-SC) converter that extends the conventional SC structure to attain higher output power. Moreover, the proposed converter reduces output current ripple and requires only half the number of current sensors compared to the conventional 4-phase buck converter (4P-IBC). In this paper, the proposed structure is validated by simulation.
AB - The series-capacitor (SC) converter is an attractive choice due to its capacity for achieving a high step-down conversion ratio, reducing voltage stress on switching devices, and maintaining inherent current balance. To enhance power capacity and minimize output current fluctuations, a multi-phase series-capacitor configuration was introduced. However, as the number of phases increases, the operational range of the converter proportionally decreases by a factor of n, where n represents the number of phases. Consequently, the suitability of the multi-phase SC topology diminishes. This study introduces a 4-phase series-capacitor (4P-SC) converter that extends the conventional SC structure to attain higher output power. Moreover, the proposed converter reduces output current ripple and requires only half the number of current sensors compared to the conventional 4-phase buck converter (4P-IBC). In this paper, the proposed structure is validated by simulation.
KW - Asymmetrical PWM strategy
KW - Current balancing
KW - Series-capacitor converter
UR - http://www.scopus.com/inward/record.url?scp=85178515326&partnerID=8YFLogxK
U2 - 10.1109/ISEE59483.2023.10299865
DO - 10.1109/ISEE59483.2023.10299865
M3 - Conference contribution
AN - SCOPUS:85178515326
T3 - Proceedings - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023
SP - 191
EP - 196
BT - Proceedings - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023
Y2 - 19 October 2023 through 20 October 2023
ER -