PSpice error ERROR(ORPSIM-16318): Missing or invalid expression

[jIALE CHANG]

.PARAM C1 2pF
.PARAM R1 10
.PARAM Vbi 0.8V
X_U1.C_Cd CA 0 X_U1.VALUE {C1/SQRT(V(NA))}
--------------------------$
ERROR(ORPSIM-16318): Missing or invalid expression

Can any one help me?

 

[FvM]

This kind of behavioral capacitor description isn't supported by PSpice. Where did you get it?

 

[jIALE CHANG]

感谢您的回复！是的，您说的是对的！ 我想尝试建立一个电压相关的电容器模型，我用YX的ABM模型解决了这个问题，你还有其他见解吗？

真诚地

[translation by moderator]
thank you for your reply! Yes, you are right! I would like to try to model a voltage dependent capacitor, I solved this problem with the ABM model of YX, do you have any other insights?