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Variable changes with time

jun1119

Hi

I would like to simulate a circuit with variable capacitor where its value will change with tme instead of giving several traces for different values as in parametric sweep. How can it be done?

[URL=http://img214.imageshack.us/i/91061656.jpg/][IMG]img214.imageshack.us/.../URL] 

The desired input is:

[URL=http://img209.imageshack.us/i/10878748.jpg/][IMG]img209.imageshack.us/.../URL]

with the output:

[URL=http://img220.imageshack.us/i/30543651.jpg/][IMG]img220.imageshack.us/.../URL]

 

Thank you and Best Regards

 

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  • jun1119

    Well, I mean on the VC_CAP block, there is a CAP = 1U where 1U is a value that you can change. Also, when you double click the word VC_CAP, you can key in some values too. Double click it into its property and you will see there is a column for "value" which can be changed by clicking "VC_CAP" and another column labelled "CAP" with the value 1U. What are their relationship? Shall I just set the capacitance I want in the "value" column? For the voltage, I will just have to connect a vsin at the left terminals right?

     

    Thank you

Reply
  • jun1119

    Well, I mean on the VC_CAP block, there is a CAP = 1U where 1U is a value that you can change. Also, when you double click the word VC_CAP, you can key in some values too. Double click it into its property and you will see there is a column for "value" which can be changed by clicking "VC_CAP" and another column labelled "CAP" with the value 1U. What are their relationship? Shall I just set the capacitance I want in the "value" column? For the voltage, I will just have to connect a vsin at the left terminals right?

     

    Thank you

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