Failure Analysis of Intelligent Power Module and Reliability Research of Application Process
In view of the failure of the electrical function of the intelligent power module in the inverter air conditioner,it is not only related to the technical parameters of the intelligent power module itself,but also the layout of the peripheral circuit will affect the reliability of the intelligent power module in the application.The failure mode is locked by big data analysis mining law,and the failure mechanism of the intelligent power module is locked by the typical failure analysis method,which is the overheating caused by the narrow pulse signal that overflows for a short time,and the bus current is the sensitive signal in the application process of the intelligent power module.By optimizing the ground wire loop,the negative voltage caused by interference is reduced,and the impact on sensitive signals is reduced,so as to improve the reliability of the intelligent power module in the application,and provide an important basis for the subsequent design and development.
atypical topographybusbar currentnegative voltagesensitive signal
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