/// <summary>
/// Setup the current source
/// </summary>
/// <param name="ckt">The circuit</param>
public override void Setup(Circuit ckt)
{
var nodes = BindNodes(ckt);
ISRCposNode = nodes[0].Index;
ISRCnegNode = nodes[1].Index;
// Setup waveform
ISRCwaveform?.Setup(ckt);
}
/// <summary>
/// Load the current source in the circuit
/// </summary>
/// <param name="ckt"></param>
public override void Load(Circuit ckt)
{
var state = ckt.State;
var rstate = state.Real;
double value = 0.0;
double time = 0.0;
// Time domain analysis
if (state.Domain == CircuitState.DomainTypes.Time)
{
if (ckt.Method != null)
{
time = ckt.Method.Time;
}
// Use the waveform if possible
if (ISRCwaveform != null)
{
value = ISRCwaveform.At(time);
}
else
{
value = ISRCdcValue * state.SrcFact;
}
}
else
{
// AC or DC analysis use the DC value
value = ISRCdcValue * state.SrcFact;
}
rstate.Rhs[ISRCposNode] += value;
rstate.Rhs[ISRCnegNode] -= value;
Current = value;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="name">The name of the current source</param>
/// <param name="pos">The positive node</param>
/// <param name="neg">The negative node</param>
/// <param name="w">The waveform</param>
public Currentsource(string name, string pos, string neg, Waveform w) : base(name, 2)
{
Connect(pos, neg);
ISRCwaveform.Set(w);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="name">The name of the current source</param>
/// <param name="pos">The positive node</param>
/// <param name="neg">The negative node</param>
/// <param name="dc">The DC value</param>
public Currentsource(string name, string pos, string neg, double dc) : base(name, 2)
{
Connect(pos, neg);
ISRCwaveform.Set(dc);
}