/// <summary>
/// Generates a voltage switch.
/// </summary>
/// <param name="name">Name of voltage switch to generate.</param>
/// <param name="parameters">Parameters for voltage switch.</param>
/// <param name="context">Reading context.</param>
/// <returns>
/// A new voltage switch.
/// </returns>
protected IEntity GenerateVoltageSwitch(string name, ParameterCollection parameters, ICircuitContext context)
{
if (parameters.Count < 5)
{
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "Wrong parameter count for voltage switch", parameters.LineInfo));
return(null);
}
string modelName = parameters.Get(4).Image;
var model = context.ModelsRegistry.FindModel(modelName);
if (model.Entity is VSwitchModel)
{
BehavioralResistor resistor = new BehavioralResistor(name);
Model resistorModel = model;
context.CreateNodes(resistor, parameters.Take(BehavioralResistor.BehavioralResistorPinCount));
var vSwitchModelParameters = resistorModel.Parameters as VSwitchModelParameters;
double vOff = vSwitchModelParameters.OffVoltage;
double rOff = vSwitchModelParameters.OffResistance;
double vOn = vSwitchModelParameters.OnVoltage;
double rOn = vSwitchModelParameters.OnResistance;
string vc = $"v({parameters.Get(2)}, {parameters.Get(3)})";
double lm = Math.Log(Math.Sqrt(rOn * rOff));
double lr = Math.Log(rOn / rOff);
double vm = (vOn + vOff) / 2.0;
double vd = vOn - vOff;
string resExpression = GetVSwitchExpression(vOff, rOff, vOn, rOn, vc, lm, lr, vm, vd);
resistor.Parameters.Expression = resExpression;
resistor.Parameters.ParseAction = (expression) =>
{
var parser = new ExpressionParser(context.Evaluator.GetEvaluationContext(null), false, context.CaseSensitivity);
return(parser.Resolve(expression));
};
context.SimulationPreparations.ExecuteActionAfterSetup(
(simulation) =>
{
if (context.ModelsRegistry is StochasticModelsRegistry stochasticModelsRegistry)
{
resistorModel = stochasticModelsRegistry.ProvideStochasticModel(name, simulation, model);
if (!context.Result.FindObject(resistorModel.Name, out _))
{
stochasticModelsRegistry.RegisterModelInstance(resistorModel);
}
}
vOff = vSwitchModelParameters.OffVoltage;
rOff = vSwitchModelParameters.OffResistance;
vOn = vSwitchModelParameters.OnVoltage;
rOn = vSwitchModelParameters.OnResistance;
lm = Math.Log(Math.Sqrt(rOn * rOff));
lr = Math.Log(rOn / rOff);
vm = (vOn + vOff) / 2.0;
vd = vOn - vOff;
resExpression = GetVSwitchExpression(vOff, rOff, vOn, rOn, vc, lm, lr, vm, vd);
resistor.Parameters.Expression = resExpression;
resistor.Parameters.ParseAction = (expression) =>
{
var parser = new ExpressionParser(context.Evaluator.GetEvaluationContext(simulation), false, context.CaseSensitivity);
return(parser.Resolve(expression));
};
});
return(resistor);
}
VoltageSwitch vsw = new VoltageSwitch(name);
context.CreateNodes(vsw, parameters);
context.SimulationPreparations.ExecuteActionBeforeSetup((simulation) =>
{
context.ModelsRegistry.SetModel(
vsw,
simulation,
parameters.Get(4),
$"Could not find model {parameters.Get(4)} for voltage switch {name}",
(Context.Models.Model model2) => { vsw.Model = model2.Name; },
context.Result);
});
// Optional ON or OFF
if (parameters.Count == 6)
{
switch (parameters.Get(5).Image.ToLower())
{
case "on":
vsw.SetParameter("on", true);
break;
case "off":
vsw.SetParameter("off", true);
break;
default:
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "ON or OFF expected", parameters.LineInfo));
return(vsw);
}
}
else if (parameters.Count > 6)
{
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "Too many parameters for voltage switch", parameters.LineInfo));
return(vsw);
}
return(vsw);
}
/// <summary>
/// Generates a current switch.
/// </summary>
/// <param name="name">Name of current switch.</param>
/// <param name="parameters">Parameters of current switch.</param>
/// <param name="context">Reading context.</param>
/// <returns>
/// A new instance of current switch.
/// </returns>
private IEntity GenerateCurrentSwitch(string name, ParameterCollection parameters, ICircuitContext context)
{
if (parameters.Count < 4)
{
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "Wrong parameter count for current switch", parameters.LineInfo));
return(null);
}
string modelName = parameters.Get(3).Image;
var model = context.ModelsRegistry.FindModel(modelName);
if (model.Entity is ISwitchModel)
{
BehavioralResistor resistor = new BehavioralResistor(name);
Model resistorModel = model;
context.CreateNodes(resistor, parameters.Take(2));
var ic = $"i({parameters.Get(2)})";
var iswitchModelParameters = resistorModel.Parameters as ISwitchModelParameters;
double iOff = iswitchModelParameters.OffCurrent;
double rOff = iswitchModelParameters.OffResistance;
double iOn = iswitchModelParameters.OnCurrent;
double rOn = iswitchModelParameters.OnResistance;
double lm = Math.Log(Math.Sqrt(rOn * rOff));
double lr = Math.Log(rOn / rOff);
double im = (iOn + iOff) / 2.0;
double id = iOn - iOff;
var resExpression = GetISwitchExpression(iOff, rOff, iOn, rOn, ic, lm, lr, im, id);
resistor.Parameters.Expression = resExpression;
resistor.Parameters.ParseAction = (expression) =>
{
var parser = new ExpressionParser(context.Evaluator.GetEvaluationContext(null), false, context.CaseSensitivity);
return(parser.Resolve(expression));
};
context.SimulationPreparations.ExecuteActionAfterSetup(
(simulation) =>
{
if (context.ModelsRegistry is StochasticModelsRegistry stochasticModelsRegistry)
{
resistorModel = stochasticModelsRegistry.ProvideStochasticModel(name, simulation, model);
if (!context.Result.FindObject(resistorModel.Name, out _))
{
stochasticModelsRegistry.RegisterModelInstance(resistorModel);
}
}
iOff = iswitchModelParameters.OffCurrent;
rOff = iswitchModelParameters.OffResistance;
iOn = iswitchModelParameters.OnCurrent;
rOn = iswitchModelParameters.OnResistance;
lm = Math.Log(Math.Sqrt(rOn * rOff));
lr = Math.Log(rOn / rOff);
im = (iOn + iOff) / 2.0;
id = iOn - iOff;
resExpression = GetISwitchExpression(iOff, rOff, iOn, rOn, ic, lm, lr, im, id);
resistor.Parameters.Expression = resExpression;
resistor.Parameters.ParseAction = (expression) =>
{
var parser = new ExpressionParser(context.Evaluator.GetEvaluationContext(simulation), false, context.CaseSensitivity);
return(parser.Resolve(expression));
};
});
return(resistor);
}
CurrentSwitch csw = new CurrentSwitch(name);
context.CreateNodes(csw, parameters);
// Get the controlling voltage source
if (parameters[2] is WordParameter || parameters[2] is IdentifierParameter)
{
csw.ControllingSource = context.NameGenerator.GenerateObjectName(parameters.Get(2).Image);
}
else
{
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "Voltage source name expected", parameters.LineInfo));
return(null);
}
// Get the model
context.SimulationPreparations.ExecuteActionBeforeSetup((simulation) =>
{
context.ModelsRegistry.SetModel(
csw,
simulation,
parameters.Get(3),
$"Could not find model {parameters.Get(3)} for current switch {name}",
(Context.Models.Model switchModel) => csw.Model = switchModel.Name,
context.Result);
});
// Optional on or off
if (parameters.Count > 4)
{
switch (parameters.Get(4).Image.ToLower())
{
case "on":
csw.SetParameter("on", true);
break;
case "off":
csw.SetParameter("off", true);
break;
default:
context.Result.Validation.Add(new ValidationEntry(ValidationEntrySource.Reader, ValidationEntryLevel.Warning, "ON or OFF expected", parameters.LineInfo));
return(csw);
}
}
return(csw);
}
