我看了看燒機的許多話題,想談談怎么樣去分析,
1.出現電流飽和的信號,例如以下的波形.
1150508607.tif
2.Vceo is very marginal,almost or over 700V when power on
If You want to see the waveform ,pls wait for a moment ,
3. the Junction temperature is very marginal ,or the power stree is over 85%
eg, if the power Diss is 0.5W ,and the Case temperature of the Q1 is 120C ,the R(jc)is 54 (c/W),then it is very easy to damage the Q1
關于燒機問題的分析
全部回復(10)
正序查看
倒序查看