Research on the Prediction Method of Lifetime of Power Supply Circuit
The lifetime of the power supply circuit determines the lifetime of stand-alone machine or the whole equipment.Therefore,a lifetime prediction method based on the degradation of sensitive parameters is proposed.Firstly,the role of activation energy in the lifetime prediction of the circuit is discussed.Then,taking voltage reference circuit,BUCK circuit and linear voltage regulator as examples,the test methods and steps of life prediction are given.The test data processing,device life equation and activation energy are mainly discussed.This method can be directly used to predict the life of power supply circuit,and has certain engineering reference value.
NETL
NSTL
万方数据
维普
