1. A Compact Gate Control and Voltage-Balancing Circuit for Series-Connected SiC MOSFETs and Its Application in a DC Breaker.
- Author
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Ren, Yu, Yang, Xu, Zhang, Fan, Wang, Kangping, Chen, Wenjie, Wang, Laili, and Pei, Yunqing
- Subjects
PAIN perception ,GATE control theory ,METAL oxide semiconductor field-effect transistors ,ELECTRIC potential ,SILICON carbide - Abstract
This paper presents a novel compact circuit combining function of gate control and voltage balancing for series-connected silicon carbide (SiC) metal–oxide–semiconductor field-effect transistor (MOSFET). Two series-connected SiC MOSFETs with the proposed circuit only require a single standard gate driver to achieve the gate control and voltage balancing during both steady-state and switching transition. Moreover, the proposed circuit is only composed of ten passive components. Therefore, the proposed circuit provides a low-cost and highly reliable method to increase the blocking voltage of the SiC MOSFET. The operation principles of the proposed circuit are theoretically analyzed. In addition, the high-blocking-voltage device is not only required in switching-mode power supply (SMPS) but also in dc-breaker applications. The proposed circuit is then modified to make it suitable to the dc-breaker applications. The simulation and experimental results validate the effectiveness and superiority of the proposed circuit in both SMPS and dc-breaker applications. [ABSTRACT FROM PUBLISHER]
- Published
- 2017
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