within ;
model PulseSource "Simple inverter circuit"
//--------------------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------------------
extends Modelica.Icons.Example;
encapsulated model V_pulse "Pulse voltage source"
extends Modelica.Electrical.Analog.Interfaces.OnePort;
import Modelica;
parameter Modelica.SIunits.Voltage V1=0 "Initial value";
parameter Modelica.SIunits.Voltage V2=0 "Pulsed value";
parameter Modelica.SIunits.Time TD=0.0 "Delay time";
parameter Modelica.SIunits.Time TR(start=1) "Rise time";
parameter Modelica.SIunits.Time TF=TR "Fall time";
parameter Modelica.SIunits.Time PW=Modelica.Constants.inf "Pulse width";
parameter Modelica.SIunits.Time PER=Modelica.Constants.inf "Period";
protected
parameter Modelica.SIunits.Time Trising=TR
"End time of rising phase within one period";
parameter Modelica.SIunits.Time Twidth=Trising + PW
"End time of width phase within one period";
parameter Modelica.SIunits.Time Tfalling=Twidth + TF
"End time of falling phase within one period";
Modelica.SIunits.Time T0(final start=TD) "Start time of current period";
Integer counter(start=-1, fixed=true) "Period counter";
Integer counter2(start=-1, fixed=true);
equation
when pre(counter2) <> 0 and sample(TD, PER) then
T0 = time;
counter2 = pre(counter);
counter = pre(counter) - (if pre(counter) > 0 then 1 else 0);
end when;
v = V1 + (if (time < TD or counter2 == 0 or time >= T0 +
Tfalling) then 0 else if (time < T0 + Trising) then (time - T0)*
(V2-V1)/Trising else if (time < T0 + Twidth) then V2-V1 else
(T0 + Tfalling - time)*(V2-V1)/(Tfalling - Twidth));
annotation (
Icon(coordinateSystem(
preserveAspectRatio=false,
extent={{-100,-100},{100,100}},
grid={1,1}), graphics={
Text(
extent={{-120,49},{-20,-1}},
lineColor={0,0,255},
textString="+"),
Text(
extent={{25,53},{125,3}},
lineColor={0,0,255},
textString="-"),
Text(
extent={{-157,-62},{143,-102}},
textString="%name",
lineColor={0,0,255}),
Ellipse(
extent={{-51,50},{49,-50}},
lineColor={0,0,255},
fillColor={255,255,255},
fillPattern=FillPattern.Solid),
Line(points={{-90,0},{50,0}}, color={0,0,255}),
Line(points={{50,0},{90,0}}, color={0,0,255}),
Line(points={{-86,-74},{-65,-74},{-35,66},{-4,66},{25,-74},{46,-74},
{75,66}}, color={192,192,192})}),
Diagram(coordinateSystem(
preserveAspectRatio=false,
extent={{-100,-100},{100,100}},
grid={1,1}), graphics),
Window(
x=0.21,
y=0.22,
width=0.6,
height=0.63),
Documentation(info="
Periodic pulse source with not limited number of periods.
A single pulse is described by the following table:
time |
value |
0 |
V1 |
TD |
V1 |
TD+TR |
V2 |
TD+TR+PW |
V2 |
TD+TR+PW+TF |
V1 |
TSTOP |
V1 |
Intermediate points are determined by linear interpolation.
A pulse it looks like a saw tooth, use this parameters e.g.:
Parameter |
Value |
V1 |
0 |
V2 |
1 |
TD |
0 |
TR |
1 |
TF |
1 |
PW |
2 |
PER |
1 |
Note:
- All parameters of sources should be set explicitly.
- since TSTEP and TSTOP are not available for modeling in Modelica, differences to SPICE may occur if not all parameters are set.
"),
uses(Modelica(version="3.2")));
end V_pulse;
Modelica.Electrical.Spice3.Basic.Ground ground
annotation (Placement(transformation(extent={{-14,-60},{6,-40}})));
V_pulse vin(
V2=5,
TD=4e-12,
TR=0.1e-12,
TF=0.1e-12,
PW=1e-12,
PER=2e-12) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=270,
origin={-40,-16})));
Modelica.Electrical.Analog.Basic.Resistor resistor(R=1) annotation (Placement(
transformation(
extent={{-10,-10},{10,10}},
rotation=270,
origin={-4,-16})));
equation
connect(vin.n, ground.p) annotation (Line(
points={{-40,-26},{-40,-40},{-4,-40}},
color={0,0,0},
smooth=Smooth.None));
connect(ground.p, resistor.n) annotation (Line(
points={{-4,-40},{-4,-26}},
color={0,0,255},
smooth=Smooth.None));
connect(vin.p, resistor.p) annotation (Line(
points={{-40,-6},{-4,-6}},
color={0,0,255},
smooth=Smooth.None));
annotation ( Diagram(
coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{100,100}}),
graphics),
Icon(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{
100,100}}), graphics),
experiment(
StopTime=1e-011,
NumberOfIntervals=2000,
Tolerance=1e-007),
Documentation(info="
An inverter is an electrical circuit that consists of a PMOS and a NMOS transistor. Its task is to turn the input voltage from high potential to low potential or the other way round.
Simulate until 1.e-11 s. Display the input voltage Vin.p.v as well as the output voltage mp.S.v. It shows that the input voltage is inverted.
",
revisions="
- March 2009 by Kristin Majetta initially implemented
"),
uses(Modelica(version="3.2.1")),
__Dymola_experimentSetupOutput);
end PulseSource;