An Online Unified Delay and Slew Rate Regulation for Current Sharing in Paralleled SiC Power Modules With Active Gate Drivers
Year: 2024
Type: article
Abstract: To ensure balanced current sharing between paralleled power modules, active gate drivers (AGDs) can be used to adjust the currents dynamically. However, achieving effective, flexible and accurate dynamic current adjustment is a challenge for AGDs under the very fast switching speed of silicon carbide (SiC) devices, e.g.,on/offdelay and current slew rate regulation scheme for AGDs for paralleling SiC metal-oxide-semiconductor field-effect-transistor (MOSFET) power modules is proposed in this article. The advantage of the proposed scheme is that it achieves independent closed-loop control for the delay regulation and the current slew rate regulation, i.e., the adjustment of the current slew rate will not affect the already-tuned delay compensation. Also, the proposed AGD based on gate resistance adjustment with just two push–pull driver channels and less switching actions can achieve the wider-range and multilevel current slew rate regulation. Experimental validation of the closed-loop current regulation for current sharing between SiC power modules with the presented AGD is provided.
Authors: Yan Li, Xibo Yuan, Yonglei Zhang, Kai Wang, Zihao Wang, Olayiwola Alatise, Wenzhi Zhou
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4402628534