/*Evaluate a Kirchoff-based function for the currents in the pins connected to the net,
* available for both DC and transient simulations
* (irrelevant for fixed-voltage nets)
*/
public double DCFunction(DCSolver solver)
{
double sum = 0;
foreach (NetConnection iter in connections)
{
sum -= solver.GetPinCurrent(iter.component, iter.pin);
}
return(sum);
}
// f0: (V1 - V2) / R - I
public override double DCFunction(DCSolver solver, int f)
{
if (f == 0)
{
double L = (solver.GetNetVoltage(PinConnections[0]) - solver.GetNetVoltage(PinConnections[1])) / Resistance;
double R = solver.GetPinCurrent(this, 0);
return(L - R);
}
else
{
return(0.0d);
}
}
// f0: Is * (e ^ ((Vd - IRs)/(n*Vt)) - 1) - I
public override double DCFunction(DCSolver solver, int f)
{
if (f == 0)
{
double L = SaturationCurrent *
(Math.exp_safe(((solver.GetNetVoltage(PinConnections[0]) - solver.GetNetVoltage(PinConnections[1])) - SeriesResistance * solver.GetPinCurrent(this, 0)) / (IdealityFactor * Math.vTherm)) - 1);
double R = solver.GetPinCurrent(this, 0);
return(L - R);
}
else
{
return(0.0d);
}
}
public override double DCDerivative(DCSolver solver, int f, VariableIdentifier var)
{
if (f == 0)
{
if (var.type == VariableType.NET)
{
if (var.net == PinConnections[0])
{
return(SaturationCurrent * (1 / (IdealityFactor * Math.vTherm)) * Math.exp_deriv(((solver.GetNetVoltage(PinConnections[0]) - solver.GetNetVoltage(PinConnections[1]) - SeriesResistance * solver.GetPinCurrent(this, 0))) / (IdealityFactor * Math.vTherm)));
}
else if (var.net == PinConnections[1])
{
return(-1 * SaturationCurrent * (1 / (IdealityFactor * Math.vTherm)) * Math.exp_deriv(((solver.GetNetVoltage(PinConnections[0]) - solver.GetNetVoltage(PinConnections[1]) - SeriesResistance * solver.GetPinCurrent(this, 0))) / (IdealityFactor * Math.vTherm)));
}
}
else
{
if ((var.component == this) && (var.pin == 0))
{
return(-1 * SeriesResistance * SaturationCurrent * (1 / (IdealityFactor * Math.vTherm)) * Math.exp_deriv(((solver.GetNetVoltage(PinConnections[0]) - solver.GetNetVoltage(PinConnections[1]) - SeriesResistance * solver.GetPinCurrent(this, 0))) / (IdealityFactor * Math.vTherm)) - 1);
}
}
}
return(0.0d);
}
