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--- simulating_a_time-varying_resistor_in_spice [2024/09/06 19:06] – created admin
+++ simulating_a_time-varying_resistor_in_spice [2024/09/06 19:21] (current) – admin
@@ Line 3: / Line 3: @@
 Suppose we want we simulate a time-varying resistor, e.g., a sinusoidal value in function of time with a certain offset: R1(t)= 5 Ω + 3 Ω.sin(2π.10.t).
-This can be realized by introducing an independent voltage source with voltage equal to the requested value of the resistor, i.e. 1 V corresponds to 1 Ω. Thus for our example, we need to introduce a voltage source with DC offset 5V, amplitude 3V and frequency 10 Hz.
+This can be realized by introducing an independent voltage source with voltage equal to the requested value of the resistor, i.e. 1 V corresponds to 1 Ω. Thus for our example, we need to introduce a voltage source with DC offset 5V, amplitude 3V and frequency 10 Hz. We allocate a label to the output of the voltage source, e.g., ''output''.
+{{:simulating_a_time-varying_resistor_in_spice-1.png|}}
+Next, we label the value of the time-varying resistor R1 as ''R=V(output)''. As a result, the value of the resistor wil be identical to the output of the voltage source, as can be seen in the following figure.
+Notice that we can plot the value of the resistor by choosing ''V(V1)/I(R1)'' as plot function.
+{{:simulating_a_time-varying_resistor_in_spice-2.png|}}
+----
+<color #808080>**References**</color>
+  * <color #808080>[[https://maker.pro/forums/resources/simulating-time-variable-resistors.59/|https://maker.pro/forums/resources/simulating-time-variable-resistors.59]]</color>
-{{:simulating_a_time-varying_resistor_in_spice-1.png?800|}}