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R=f(time)

#1 · January 25, 2024, 7:49 am

I wonder if there is a simple way (a component, a subcircuit) which can vary slowly a resistance with time.
For example:
R = R_ini - time/K (accuracy is not important)
And it is okay if time=0 every time the ‘Run’ button is pressed after a pause.
Thank you.

#2 · January 25, 2024, 12:03 pm

See if this is close to what you want.

Uploaded files:

RESIVAR__.zip

KerimF has reacted to this post.

#3 · January 25, 2024, 3:24 pm

Quote from Defran on January 25, 2024, 12:03 pm

See if this is close to what you want.

Thank you, Defran.

I will have a look at your subcircuit.

For instance, I was trying to use a resistor as a load whose value decreases slowly from a maximum value to a minimum one while the simulation is running (while the simulation time increases).

#4 · January 25, 2024, 3:40 pm

This circuit does something like that.