How to mae the k in potentiometer dependent (on a current)? |
by Hichi
January 01, 2021 |
Coincidentally, I have been experimenting in CL with current control of a resistor. Results to date are here: https://www.circuitlab.com/circuit/m26zer743v7u/current-controlled-resistance/ When I saw your post on potentiometer control I put together a prototype simulation with two of the previous devices in series: https://www.circuitlab.com/circuit/5pcy9xh3r2r2/current-controlled-potentiometer/ Hoping that these schematics will give you some ideas! |
by EF82
January 02, 2021 |
@EF82 definitely has you on the right track by using Behavioral Sources to implement the dynamic resistor(s). Instead of using a potentiometer element, just use two resistors to make up each half of the potentiometer. Try this example: The two resistances R1A and R1B add up to 100k. The key is that one is proportional to |
ACCEPTED
+1 vote by mrobbins January 05, 2021 |
Neat, thanks! |
by EF82
January 05, 2021 |
I am trying to put two controlled resitances in parallel (Rvar and Rvar 5) in the circuit below. It seems not to be possible? |
by Hichi
January 13, 2021 |
@Hichi it appears that the circuit you linked is not public. Can you make it public or unlisted so we can take a look? |
by mrobbins
January 14, 2021 |
Thanks mrobbins. It is Unlisted now, can you please check? |
by Hichi
January 14, 2021 |
Thanks. It was very helpful. Would it be possible to link the Rvar value to different parts of another circuit? I have resitors that each are a multply of the Rvar and want them to change as the Rvar changes. I tried the Parameter Element but it seems not to accept Rvar ... |
+1 vote by Hichi January 02, 2021 |
I think this is the information that you are asking about:
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by EF82
January 04, 2021 |
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