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Re: Conductance Negative

 

On Mon, Mar 31, 2025 at 03:26 AM, jacfev wrote:
I tried to simulate a negative resistance using btdeboi's netlist, but I can't complete the schematic.
Can you help me complete it ?
See Negative Conductance.asc
Compared to the netlist in btdeboi's?message, there is one omission in your schematic.? Change the formula of the B-source B1, from this:
I = V(Vi,Vo)/R
to this:
I = V(Vi,Vo)/V(Vr)
That's all I can tell you because it is missing a SPICE simulation command (.OP or .DC or .AC or .TRAN?) and I don't know where/why it works.? I guess you need to work that out.
?
If you sweep the voltage source V1 (.DC V1 ...), the current through B1 and Rmeas linearly decreases as V(Vi) increases.
?
Andy
?
?
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