TY - GEN
T1 - Active dv/dt control with turn-off gate resistance modulation for voltage balancing of series connected SiC MOSFETs
AU - Lee, Inhwan
AU - Yao, Xiu
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/14
Y1 - 2021/6/14
N2 - Stacking devices in series allows to achieve higher blocking voltage in power applications. However, an unequal voltage sharing issue among devices is critical which may lead to failure of the devices. The unbalance can be caused by different device characteristics and mismatch of gate signals due to different parasitic components of circuits. In this paper, a dv/dt control method with the active gate driver (AGD) is proposed for voltage balancing of stacked SiC MOSFETs. The dv/dt is actively controlled by modulating the turn-off gate resistance (Roff) during turn-off transient. The proposed method is experimentally validated by achieving voltage balancing with six series connected SiC MOSFETs at 3 kV dc voltage.
AB - Stacking devices in series allows to achieve higher blocking voltage in power applications. However, an unequal voltage sharing issue among devices is critical which may lead to failure of the devices. The unbalance can be caused by different device characteristics and mismatch of gate signals due to different parasitic components of circuits. In this paper, a dv/dt control method with the active gate driver (AGD) is proposed for voltage balancing of stacked SiC MOSFETs. The dv/dt is actively controlled by modulating the turn-off gate resistance (Roff) during turn-off transient. The proposed method is experimentally validated by achieving voltage balancing with six series connected SiC MOSFETs at 3 kV dc voltage.
UR - https://www.scopus.com/pages/publications/85115729129
U2 - 10.1109/APEC42165.2021.9487314
DO - 10.1109/APEC42165.2021.9487314
M3 - Conference contribution
AN - SCOPUS:85115729129
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1256
EP - 1261
BT - 2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021
Y2 - 14 June 2021 through 17 June 2021
ER -