How to simulate a electric filter in Simulink?

Question

mohamed ali 2021-1-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/713368-how-to-simulate-a-electric-filter-in-simulink

回答： mohamed ali 2021-1-11

I have ben triang to simulte this circuit but an error occured and the error is :

Solver encountered an error while simulating model 'simulations' at time 0 and cannot continue. Please check the model for errors.

Solver could not solve the system of algebraic equations because a singular iteration matrix was encountered. Consider providing more accurate initial conditions. If the problem persists, check the model structure and values of parameters.

Does anyone have solved some error like tht before?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jonas 2021-1-11

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/713368-how-to-simulate-a-electric-filter-in-simulink#answer_595143

You have grounded the output of the opamp behind the voltage sensor block. The voltage sensor block has zero impedance. You should add a resistor or something between the voltage sensor and the grounding block. Otherwise the opamp can't do anything.

I would also check the rest of the circuit, because I do not see a feedback loop.