探究Si C BJT基极驱动电路拓扑,对Si C BJT基极驱动电路损耗的构成进行了分析和对比,提出单基极电阻和阻容网络两种单电源基极驱动方案,对开关速度进行了对比。针对单电源阻容网络驱动方案,对其关键电路参数进行了分析,并针对一款Si C ...探究Si C BJT基极驱动电路拓扑,对Si C BJT基极驱动电路损耗的构成进行了分析和对比,提出单基极电阻和阻容网络两种单电源基极驱动方案,对开关速度进行了对比。针对单电源阻容网络驱动方案,对其关键电路参数进行了分析,并针对一款Si C BJT器件给出了优化的参数组合设计结果,实验测试得出驱动1 200 V/6 A Si C BJT驱动损耗为3.85 W,该驱动电路优势明显,并具有进一步优化的空间。展开更多
A SIT-BJT model is proposed for static induction thyristors （SITh） operation in the blocking state. On the basis of the physical mechanism, this model is presented analytically in terms of governing equations that l...A SIT-BJT model is proposed for static induction thyristors （SITh） operation in the blocking state. On the basis of the physical mechanism, this model is presented analytically in terms of governing equations that link the electrical parameters to the structural parameters. The model is verified by numerical simulation and theoretical analysis. Based on the model, the variations of the electrical parameters such as the potential barrier, the anode junction voltage drop, and the current amplification factor are studied and discussed.展开更多
In this paper, a new structure of a 4H-SiC bipolar junction transistor （BJT） with a buried layer （BL） in the base is presented. The current gain shows an approximately 100% increase compared with that of the conve...In this paper, a new structure of a 4H-SiC bipolar junction transistor （BJT） with a buried layer （BL） in the base is presented. The current gain shows an approximately 100% increase compared with that of the conventional structure. This is attributed to the creation of a built-in electric field for the minority carriers to transport in the base which is explained based on 2D device simulations. The optimized design of the buried layer region is also considered by numeric simulations.展开更多
文摘探究Si C BJT基极驱动电路拓扑,对Si C BJT基极驱动电路损耗的构成进行了分析和对比,提出单基极电阻和阻容网络两种单电源基极驱动方案,对开关速度进行了对比。针对单电源阻容网络驱动方案,对其关键电路参数进行了分析,并针对一款Si C BJT器件给出了优化的参数组合设计结果,实验测试得出驱动1 200 V/6 A Si C BJT驱动损耗为3.85 W,该驱动电路优势明显,并具有进一步优化的空间。
文摘A SIT-BJT model is proposed for static induction thyristors （SITh） operation in the blocking state. On the basis of the physical mechanism, this model is presented analytically in terms of governing equations that link the electrical parameters to the structural parameters. The model is verified by numerical simulation and theoretical analysis. Based on the model, the variations of the electrical parameters such as the potential barrier, the anode junction voltage drop, and the current amplification factor are studied and discussed.
文摘In this paper, a new structure of a 4H-SiC bipolar junction transistor （BJT） with a buried layer （BL） in the base is presented. The current gain shows an approximately 100% increase compared with that of the conventional structure. This is attributed to the creation of a built-in electric field for the minority carriers to transport in the base which is explained based on 2D device simulations. The optimized design of the buried layer region is also considered by numeric simulations.
