Modelica.Electrical.Analog.Sources

Information

This package contains time-dependent and controlled voltage and current sources. Most of the sources use the behavior modeled in the Modelica.Blocks.Sources package. All sources are ideal in the sense that no internal resistances are included.

Package Content

Name	Description
SignalVoltage	Generic voltage source using the input signal as source voltage
ConstantVoltage	Source for constant voltage
StepVoltage	Step voltage source
RampVoltage	Ramp voltage source
SineVoltage	Sine voltage source
CosineVoltage	Cosine voltage source
ExpSineVoltage	Exponentially damped sine voltage source
ExponentialsVoltage	Rising and falling exponential voltage source
PulseVoltage	Pulse voltage source
SawToothVoltage	Saw tooth voltage source
TrapezoidVoltage	Trapezoidal voltage source
TableVoltage	Voltage source by linear interpolation in a table
SignalCurrent	Generic current source using the input signal as source current
ConstantCurrent	Source for constant current
StepCurrent	Step current source
RampCurrent	Ramp current source
SineCurrent	Sine current source
CosineCurrent	Cosine current source
ExpSineCurrent	Exponentially damped sine current source
ExponentialsCurrent	Rising and falling exponential current source
PulseCurrent	Pulse current source
SawToothCurrent	Saw tooth current source
TrapezoidCurrent	Trapezoidal current source
TableCurrent	Current source by linear interpolation in a table

Modelica.Electrical.Analog.Sources.SignalVoltage

Information

The signal voltage source is a parameterless converter of real valued signals into a the source voltage. No further effects are modeled. The real valued signal has to be provided by components of the blocks library. It can be regarded as the "Opposite" of a voltage sensor.

Connectors

Name	Description
p
n
v	Voltage between pin p and n (= p.v - n.v) as input signal [V]

Modelica.Electrical.Analog.Sources.ConstantVoltage

Information

The ConstantVoltage source is a simple source for an ideal constant voltage which is provided by a parameter. There is no internal resistance modeled. If it is used instead of a battery model it is not very realistic: This battery will never be unloaded.

Parameters

Name	Description
V	Value of constant voltage [V]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.StepVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Height of step [V]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.RampVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Height of ramp [V]
duration	Duration of ramp [s]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.SineVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of sine wave [V]
phase	Phase of sine wave [rad]
freqHz	Frequency of sine wave [Hz]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.CosineVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of cosine wave [V]
phase	Phase of cosine wave [rad]
freqHz	Frequency of cosine wave [Hz]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.ExpSineVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of sine wave [V]
freqHz	Frequency of sine wave [Hz]
phase	Phase of sine wave [rad]
damping	Damping coefficient of sine wave [s-1]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.ExponentialsVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
vMax	Upper bound for rising edge
riseTime	Rise time [s]
riseTimeConst	Rise time constant [s]
fallTimeConst	Fall time constant [s]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.PulseVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of pulse [V]
width	Width of pulse in % of period
period	Time for one period [s]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.SawToothVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of saw tooth [V]
period	Time for one period [s]
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.TrapezoidVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
V	Amplitude of trapezoid [V]
rising	Rising duration of trapezoid [s]
width	Width duration of trapezoid [s]
falling	Falling duration of trapezoid [s]
period	Time for one period [s]
nperiod	Number of periods (< 0 means infinite number of periods)
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.TableVoltage

Information

This voltage source uses the corresponding signal source of the Modelica.Blocks.Sources package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

This block generates a voltage source by linear interpolation in a table. The time points and voltage values are stored in a matrix table[i,j], where the first column table[:,1] contains the time points and the second column contains the voltage to be interpolated. The table interpolation has the following properties:

• The time points need to be monotonically increasing.
• Discontinuities are allowed, by providing the same time point twice in the table.
• Values outside of the table range, are computed by extrapolation through the last or first two points of the table.
• If the table has only one row, no interpolation is performed and the voltage value is just returned independently of the actual time instant, i.e., this is a constant voltage source.
• Via parameters startTime and offset the curve defined by the table can be shifted both in time and in the voltage.
• The table is implemented in a numerically sound way by generating time events at interval boundaries. This generates continuously differentiable values for the integrator.

Example:

   table = [0  0
            1  0
            1  1
            2  4
            3  9
            4 16]
If, e.g., time = 1.0, the voltage v =  0.0 (before event), 1.0 (after event)
    e.g., time = 1.5, the voltage v =  2.5,
    e.g., time = 2.0, the voltage v =  4.0,
    e.g., time = 5.0, the voltage v = 23.0 (i.e., extrapolation). 

Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
table[:, :]	Table matrix (time = first column, voltage = second column)
offset	Voltage offset [V]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.SignalCurrent

Information

The signal current source is a parameterless converter of real valued signals into a the source current. No further effects are modeled. The real valued signal has to be provided by components of the blocks library. It can be regarded as the "Opposite" of a current sensor.

Connectors

Name	Description
p
n
i	Current flowing from pin p to pin n as input signal [A]

Modelica.Electrical.Analog.Sources.ConstantCurrent

Information

The ConstantCurrent source is a simple source for an ideal constant current which is provided by a parameter. There is no internal resistance modeled. No further effects are modeled. Especially, the current flow will never end.

Parameters

Name	Description
I	Value of constant current [A]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.StepCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Height of step [A]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.RampCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Height of ramp [A]
duration	Duration of ramp [s]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.SineCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of sine wave [A]
phase	Phase of sine wave [rad]
freqHz	Frequency of sine wave [Hz]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.CosineCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of cosine wave [A]
phase	Phase of cosine wave [rad]
freqHz	Frequency of cosine wave [Hz]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.ExpSineCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of sine wave
freqHz	Frequency of sine wave [Hz]
phase	Phase of sine wave [rad]
damping	Damping coefficient of sine wave [s-1]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.ExponentialsCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
iMax	Upper bound for rising edge
riseTime	Rise time [s]
riseTimeConst	Rise time constant [s]
fallTimeConst	Fall time constant [s]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.PulseCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of pulse [A]
width	Width of pulse in % of period
period	Time for one period [s]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.SawToothCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of saw tooth [A]
period	Time for one period [s]
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.TrapezoidCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Care for the meaning of the parameters in the Blocks package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
I	Amplitude of trapezoid [A]
rising	Rising duration of trapezoid [s]
width	Width duration of trapezoid [s]
falling	Falling duration of trapezoid [s]
period	Time for one period [s]
nperiod	Number of periods (< 0 means infinite number of periods)
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin

Modelica.Electrical.Analog.Sources.TableCurrent

Information

This current source uses the corresponding signal source of the Modelica.Blocks.Sources package. Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

This block generates a current source by linear interpolation in a table. The time points and current values are stored in a matrix table[i,j], where the first column table[:,1] contains the time points and the second column contains the current to be interpolated. The table interpolation has the following properties:

• The time points need to be monotonically increasing.
• Discontinuities are allowed, by providing the same time point twice in the table.
• Values outside of the table range, are computed by extrapolation through the last or first two points of the table.
• If the table has only one row, no interpolation is performed and the current value is just returned independently of the actual time instant, i.e., this is a constant current source.
• Via parameters startTime and offset the curve defined by the table can be shifted both in time and in the current.
• The table is implemented in a numerically sound way by generating time events at interval boundaries. This generates continuously differentiable values for the integrator.

Example:

   table = [0  0
            1  0
            1  1
            2  4
            3  9
            4 16]
If, e.g., time = 1.0, the current i =  0.0 (before event), 1.0 (after event)
    e.g., time = 1.5, the current i =  2.5,
    e.g., time = 2.0, the current i =  4.0,
    e.g., time = 5.0, the current i = 23.0 (i.e., extrapolation). 

Furthermore, an offset parameter is introduced, which is added to the value calculated by the blocks source. The startTime parameter allows to shift the blocks source behavior on the time axis.

Parameters

Name	Description
table[:, :]	Table matrix (time = first column, current = second column)
offset	Current offset [A]
startTime	Time offset [s]

Connectors

Name	Description
p	Positive pin (potential p.v > n.v for positive voltage drop v)
n	Negative pin