请教：HSPICE 后仿真出错！

confiope

请问一下，
用HSPICE作后仿真时，
出现报错，
就是
说没有从节点到地，没有DC同路，
no dc path from node net11 to groud
但是电路中没有悬空的电容和电阻，
请问高手，这是怎么回事？
怎么解决呢？

confiope

请高手不吝指教，
不胜感激！

Areky

找到节点,
手动加一大电阻连接地。..
R00001 net11 0 1e12

nicolast0604

Spice requires that every node in a circuit have a DC path to ground (ie node "0"). Be careful when, for example, connecting two capacitors at a node. Such a node between caps would have no DC path to ground and would cause Spice to reject the input file. To fix this connect a huge (ie 1 G-ohm or so resistor from the node in question to ground. This will hardly change the circuit but will provide that vital DC path to ground.

confiope

   

找到节点,
手动加一大电阻连接地。..
R00001 net11 0 1e12
Areky 发表于 2011-1-27 22:08

                               
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    非常感谢！

confiope

   

Spice requires that every node in a circuit have a DC path to ground (ie node "0"). Be careful when, ...
nicolast0604 发表于 2011-1-28 01:49

                               
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    -
thanks a lot
I will have a try

confiope

   

找到节点,
手动加一大电阻连接地。..
R00001 net11 0 1e12
Areky 发表于 2011-1-27 22:08

                               
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    -----------------------------
但是没有dc通路到地的节点太多了，
至少有百个以上，
一个一个加肯定很费事的，
请问还有其他办法吗？

confiope

   

Spice requires that every node in a circuit have a DC path to ground (ie node "0"). Be careful when, ...
nicolast0604 发表于 2011-1-28 01:49

                               
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    -----------
除此以外还有别的办法吗
可不可以修改HSPICE的仿真精度?

confiope

万分火急！
求高人的帮助！

lzheng8

不知道。。。