论文部分内容阅读
介绍了IGBT 3种短路类型,通过优化器件的晶体管增益提高第二类短路能力,以承受更大短路电流的冲击,采取驱动电路栅极电压箝位措施来限制短路状态下的过流。经过设计与工艺优化后的高压IGBT成功通过了短路特性试验,满足轨道交通的应用需求。
The short circuit types of IGBT are introduced. By optimizing the transistor gain of the device, the second type of short circuit capability is improved to withstand the impact of larger short circuit current and the gate voltage clamp of the driving circuit is adopted to limit overcurrent in the short circuit condition. After the design and process optimization of high-voltage IGBT successfully passed the short-circuit characteristics of the test to meet the application needs of rail transit.