2SD315A在高压重复频率电源中的应用

Applications of 2SD315A in High Voltage Repetitive Frequency Power Supply

针对电源高压大功率重复频率输出的需求,介绍一种适用于给重复频率Marx发生器充电用的高压重复频率电源的驱动电路2SD315A的研究与应用。作为大功率IGBT(1200 V/600 A)的驱动模块,2SD315A工作频率高,驱动电流大,具有完善的短路、过流保护和电源监控功能。根据其工作原理及特点,结合电源系统结构,在实验的基础上,合理设计了驱动外围电路及相关参数,可在系统要求的频率20 kHz及相应较大脉宽范围内驱动单管或半桥的2个大功率IGBT,且有效及可靠实现IGBT短路过流保护等。实验证明,该驱动电路在大功率IGBT驱动器中具有较为理想的驱动及保护功能。

Aiming at the repetitive frequency output requirements of high voltage and high power,study and application of a drive circuit 2SD315A for high voltage repetitive frequency Supply is the same with repetitive frequency Marx generator.2SD315A has high frequency,big drive current and imperfectible for direct short,current foldback circuit and power supply function.According to its operating principle and feature,combine power-supply system structure,on the basis of experiment,drive peripheral circuit and correlation parameter is design.It can drive single valve or two high-power IGBT in frequency 20kHz and corresponding impulse width,it can validity and reliability achieve IGBT direct short current foldback circuit and so on.Experiment result showed that the drive circuit has good drive capability and protection function in high-power IGBT driver.