Resistance sweep

[paeder92]

Hello,

in order to simulate a dynamic load, I am looking for a way to sweep over resistance. Here is an example to illustrate what I tried:

circuit = Circuit('Resistor Sweep')

circuit.V('input', 'in', circuit.gnd, 10@u_V)
circuit.R('var', 'in', circuit.gnd, 1@u_Ω)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)

analysis = simulator.dc(Rvar=slice(1,20,0.25))

However, this is not working, but returns a NotImplementedError:

NotImplementedError: {'vinput#branch': variable: vinput#branch current, 'in': variable: in voltage, 'res-sweep': variable: res-sweep res}

I am unsure, does that mean that this functionality is not available in PySpice/NgSpice, or am I doing something wrong? Generally, how can sweeping over resistance be done?

Thanks and best regards

[FabriceSalvaire]

Hi yes this functionality is not yet in PySpice