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saber DC分析报错

> dc (iperror yes,pins all,siglist /... The no_ramping algorithm failed. Trying the dyn_ramping algorithm.The dyn_ramping algorithm failed. Trying the gmin_ramping algorithm.The gmin_ramping algorithm failed. Trying the static_ramping algorithm.The static_ramping algorithm failed. Trying the den_ramping algorithm.Automatic algorithm selection exhausted*** ERROR "MAST_NO_NUM_EQUATION" *** Numerically no equation at /freenet1.*** ERROR "MAST_NO_NUM_EQUATION" *** Numerically no equation at /freenet2.*** ERROR "ALG_SINGULAR_JACOBIAN" *** Singular Jacobian matrix.Some possible causes for a singular Jacobian matrix:- Model operating outside of its intended region of operation.- Node/subsystem with no connection to the reference (floating).- Current loops (voltage sources/inductors in parallel).- Missing equation and/or missing variable reference.Partial results were written to the initial point "dcerr".execution time= 0.0312 sec.messages given: 3 errors> saber进行dc分析报错    这么解决啊
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2019-01-08 11:27
顶一个吧  
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2019-01-08 12:20
输出电容C17、C26有一端没有接。
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2019-01-08 12:28
顶一下
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