Driver circuit to eliminate bridge leg crosstalk in SiC MOSFETs

Tian Gao; Ze Cheng; Qi Wang; Yan Yang

Driver circuit to eliminate bridge leg crosstalk in SiC MOSFETs

Vol. 20, No. 2, pp. 634-643, Mar. 2020

10.1007/s43236-020-00042-6

High frequency

SiC MOSFET

Crosstalk

Abstract

This study involves the crosstalk caused by the high-frequency parasitic parameters in the driver circuits of SiC MOSFETs, which are high-speed switching devices. A lumped parameter model for the high-frequency crosstalk of a driver circuit was established. Then, the relationships between the parameters and crosstalk of the driver circuit were analyzed. Finally, an improved SiC MOSFET driver circuit was proposed. The optimized driver circuit parameters can reduce the driver signal oscillation and minimize the crosstalk of the driver circuit. Verification was performed on a test platform of a full-bridge LLC converter. Test results show that the improved driver circuit can remarkably suppress crosstalk, increase the turn-off speed of SiC MOSFETs and reduce the switching loss. This demonstrates the effectiveness of the driver circuit.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

T. Gao, Z. Cheng, Q. Wang, Y. Yang, "Driver circuit to eliminate bridge leg crosstalk in SiC MOSFETs," Journal of Power Electronics, vol. 20, no. 2, pp. 634-643, 2020. DOI: 10.1007/s43236-020-00042-6.

[ACM Style]

Tian Gao, Ze Cheng, Qi Wang, and Yan Yang. 2020. Driver circuit to eliminate bridge leg crosstalk in SiC MOSFETs. Journal of Power Electronics, 20, 2, (2020), 634-643. DOI: 10.1007/s43236-020-00042-6.