PROTEL99仿真总是singular matrix错误,求助

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myfaith|

楼主 | 2008-6-21 20:14 | 只看该作者回帖奖励

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仿真, PROTEL99, singular, matrix, ST

Warning: singular matrix: check nodes out and out

Note: starting Gmin stepping
Note: One successful Gmin step
Note: One successful Gmin step
Note: One successful Gmin step
Note: One successful Gmin step
Warning: Gmin step failed
Warning: Gmin stepping failed
Note: starting source stepping
Warning: source stepping failed
Note: starting Gmin stepping
Note: One successful Gmin step
Note: One successful Gmin step
Note: One successful Gmin step
Note: One successful Gmin step
Warning: Gmin step failed
Warning: Gmin stepping failed
Note: starting source stepping
Warning: source stepping failed
doAnalyses: Matrix is singular

run simulation(s) aborted

各位大虾请帮帮忙啊！
我在电路仿真的时候老出现这样的错误是什么原因阿！

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