• Home|About JOPS|Editorial Board|Contact us|Chinese
LIU Qing,QIN Haihong,YU Junyue,LI You,WEN Qian.Design of Novel Driver with High-speed and Low-loss for SiC BJT[J].JOURNAL OF POWER SUPPLY,2019,17(2):178-184
Design of Novel Driver with High-speed and Low-loss for SiC BJT
Received:July 04, 2017  Revised:January 02, 2019
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2019.2.178
Keywords:SiC BJT  gate driver  high-speed and low-loss  resistance-capacitance(RC) base driver  resistance and time-sequence base driver
Fund Project:National Natural Science Foundation of China(51677089);the Fundamental Research Funds for the Central Universities(NS2015039;NJ20160047); the Research Innovation Program for College Graduates of Jiangsu Province(SJLX16_0107)
              
AuthorInstitutionEmail
LIU Qing College of Automation Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing , China 1978870938@qq.com
QIN Haihong College of Automation Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing , China
YU Junyue College of Automation Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing , China
LI You College of Automation Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing , China
WEN Qian College of Automation Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing , China
Hits: 256
Download times: 190
Abstract:
      The novel SiC BJT is a powerful competitor for IGBT devices. Since the SiC BJT is a current-mode device, the design of a current-mode driver suitable for SiC BJT is very important. To overcome the disadvantages of the traditional dual-source resistance-capacitance(RC) base driver, a dual-source resistance and time-sequence base driver was designed in this paper, which was composed of three branches, i.e., turn-on branch, steady driving branch, and turn-off branch. These branches can be controlled by different driving signals generated by a delay circuit, respectively. The proposed driver can solve problems such as the duty circuit limit and driver oscillations with the traditional RC driver; comparatively, its power loss was also reduced obviously. To validate the advantages of the novel driver, two drivers were simulated by LTSPICE, respectively, and the corresponding prototypes were fabricated. Simulation and experimental results verified the satisfying driving performance of the proposed scheme.
Close