| 1 | within ;
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| 2 | model PulseSource "Simple inverter circuit"
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| 3 | //--------------------------------------------------------------------------------------------------------------
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| 4 |
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| 5 | //--------------------------------------------------------------------------------------------------------------
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| 6 | extends Modelica.Icons.Example;
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| 7 |
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| 8 | encapsulated model V_pulse "Pulse voltage source"
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| 9 | extends Modelica.Electrical.Analog.Interfaces.OnePort;
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| 10 | import Modelica;
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| 11 |
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| 12 | parameter Modelica.SIunits.Voltage V1=0 "Initial value";
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| 13 | parameter Modelica.SIunits.Voltage V2=0 "Pulsed value";
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| 14 | parameter Modelica.SIunits.Time TD=0.0 "Delay time";
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| 15 | parameter Modelica.SIunits.Time TR(start=1) "Rise time";
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| 16 | parameter Modelica.SIunits.Time TF=TR "Fall time";
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| 17 | parameter Modelica.SIunits.Time PW=Modelica.Constants.inf "Pulse width";
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| 18 | parameter Modelica.SIunits.Time PER=Modelica.Constants.inf "Period";
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| 19 |
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| 20 | protected
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| 21 | parameter Modelica.SIunits.Time Trising=TR
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| 22 | "End time of rising phase within one period";
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| 23 | parameter Modelica.SIunits.Time Twidth=Trising + PW
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| 24 | "End time of width phase within one period";
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| 25 | parameter Modelica.SIunits.Time Tfalling=Twidth + TF
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| 26 | "End time of falling phase within one period";
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| 27 | Modelica.SIunits.Time T0(final start=TD) "Start time of current period";
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| 28 | Integer counter(start=-1, fixed=true) "Period counter";
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| 29 | Integer counter2(start=-1, fixed=true);
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| 30 |
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| 31 | equation
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| 32 | when pre(counter2) <> 0 and sample(TD, PER) then
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| 33 | T0 = time;
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| 34 | counter2 = pre(counter);
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| 35 | counter = pre(counter) - (if pre(counter) > 0 then 1 else 0);
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| 36 | end when;
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| 37 | v = V1 + (if (time < TD or counter2 == 0 or time >= T0 +
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| 38 | Tfalling) then 0 else if (time < T0 + Trising) then (time - T0)*
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| 39 | (V2-V1)/Trising else if (time < T0 + Twidth) then V2-V1 else
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| 40 | (T0 + Tfalling - time)*(V2-V1)/(Tfalling - Twidth));
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| 41 |
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| 42 | annotation (
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| 43 | Icon(coordinateSystem(
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| 44 | preserveAspectRatio=false,
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| 45 | extent={{-100,-100},{100,100}},
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| 46 | grid={1,1}), graphics={
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| 47 | Text(
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| 48 | extent={{-120,49},{-20,-1}},
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| 49 | lineColor={0,0,255},
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| 50 | textString="+"),
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| 51 | Text(
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| 52 | extent={{25,53},{125,3}},
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| 53 | lineColor={0,0,255},
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| 54 | textString="-"),
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| 55 | Text(
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| 56 | extent={{-157,-62},{143,-102}},
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| 57 | textString="%name",
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| 58 | lineColor={0,0,255}),
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| 59 | Ellipse(
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| 60 | extent={{-51,50},{49,-50}},
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| 61 | lineColor={0,0,255},
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| 62 | fillColor={255,255,255},
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| 63 | fillPattern=FillPattern.Solid),
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| 64 | Line(points={{-90,0},{50,0}}, color={0,0,255}),
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| 65 | Line(points={{50,0},{90,0}}, color={0,0,255}),
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| 66 | Line(points={{-86,-74},{-65,-74},{-35,66},{-4,66},{25,-74},{46,-74},
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| 67 | {75,66}}, color={192,192,192})}),
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| 68 | Diagram(coordinateSystem(
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| 69 | preserveAspectRatio=false,
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| 70 | extent={{-100,-100},{100,100}},
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| 71 | grid={1,1}), graphics),
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| 72 | Window(
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| 73 | x=0.21,
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| 74 | y=0.22,
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| 75 | width=0.6,
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| 76 | height=0.63),
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| 77 | Documentation(info="<html>
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| 78 | <p>Periodic pulse source with not limited number of periods.</p>
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| 79 | <p>A single pulse is described by the following table:</p>
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| 80 | <table cellspacing=\"2\" cellpadding=\"0\" border=\"0\"><tr>
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| 81 | <td><h4>time</h4></td>
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| 82 | <td><h4>value</h4></td>
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| 83 | </tr>
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| 84 | <tr>
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| 85 | <td><p>0</p></td>
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| 86 | <td><p>V1</p></td>
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| 87 | </tr>
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| 88 | <tr>
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| 89 | <td><p>TD</p></td>
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| 90 | <td><p>V1</p></td>
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| 91 | </tr>
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| 92 | <tr>
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| 93 | <td><p>TD+TR</p></td>
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| 94 | <td><p>V2</p></td>
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| 95 | </tr>
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| 96 | <tr>
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| 97 | <td><p>TD+TR+PW</p></td>
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| 98 | <td><p>V2</p></td>
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| 99 | </tr>
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| 100 | <tr>
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| 101 | <td><p>TD+TR+PW+TF</p></td>
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| 102 | <td><p>V1</p></td>
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| 103 | </tr>
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| 104 | <tr>
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| 105 | <td><p>TSTOP</p></td>
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| 106 | <td><p>V1</p></td>
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| 107 | </tr>
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| 108 | </table>
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| 109 | <p>Intermediate points are determined by linear interpolation.</p>
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| 110 | <p>A pulse it looks like a saw tooth, use this parameters e.g.:</p>
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| 111 | <table cellspacing=\"2\" cellpadding=\"2\" border=\"1\"><tr>
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| 112 | <td><h4>Parameter</h4></td>
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| 113 | <td><h4>Value</h4></td>
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| 114 | </tr>
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| 115 | <tr>
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| 116 | <td><p>V1</p></td>
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| 117 | <td><p>0</p></td>
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| 118 | </tr>
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| 119 | <tr>
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| 120 | <td><p>V2</p></td>
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| 121 | <td><p>1</p></td>
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| 122 | </tr>
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| 123 | <tr>
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| 124 | <td><p>TD</p></td>
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| 125 | <td><p>0</p></td>
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| 126 | </tr>
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| 127 | <tr>
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| 128 | <td><p>TR</p></td>
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| 129 | <td><p>1</p></td>
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| 130 | </tr>
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| 131 | <tr>
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| 132 | <td><p>TF</p></td>
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| 133 | <td><p>1</p></td>
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| 134 | </tr>
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| 135 | <tr>
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| 136 | <td><p>PW</p></td>
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| 137 | <td><p>2</p></td>
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| 138 | </tr>
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| 139 | <tr>
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| 140 | <td><p>PER</p></td>
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| 141 | <td><p>1</p></td>
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| 142 | </tr>
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| 143 | </table>
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| 144 | <h4>Note:</h4>
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| 145 | <ul>
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| 146 | <li>All parameters of sources should be set explicitly.</li>
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| 147 | <li>since TSTEP and TSTOP are not available for modeling in Modelica, differences to SPICE may occur if not all parameters are set.</li>
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| 148 | </ul>
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| 149 | </html>"),
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| 150 | uses(Modelica(version="3.2")));
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| 151 | end V_pulse;
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| 152 |
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| 153 | Modelica.Electrical.Spice3.Basic.Ground ground
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| 154 | annotation (Placement(transformation(extent={{-14,-60},{6,-40}})));
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| 155 | V_pulse vin(
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| 156 | V2=5,
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| 157 | TD=4e-12,
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| 158 | TR=0.1e-12,
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| 159 | TF=0.1e-12,
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| 160 | PW=1e-12,
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| 161 | PER=2e-12) annotation (Placement(transformation(
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| 162 | extent={{-10,-10},{10,10}},
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| 163 | rotation=270,
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| 164 | origin={-40,-16})));
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| 165 | Modelica.Electrical.Analog.Basic.Resistor resistor(R=1) annotation (Placement(
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| 166 | transformation(
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| 167 | extent={{-10,-10},{10,10}},
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| 168 | rotation=270,
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| 169 | origin={-4,-16})));
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| 170 | equation
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| 171 | connect(vin.n, ground.p) annotation (Line(
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| 172 | points={{-40,-26},{-40,-40},{-4,-40}},
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| 173 | color={0,0,0},
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| 174 | smooth=Smooth.None));
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| 175 | connect(ground.p, resistor.n) annotation (Line(
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| 176 | points={{-4,-40},{-4,-26}},
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| 177 | color={0,0,255},
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| 178 | smooth=Smooth.None));
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| 179 | connect(vin.p, resistor.p) annotation (Line(
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| 180 | points={{-40,-6},{-4,-6}},
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| 181 | color={0,0,255},
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| 182 | smooth=Smooth.None));
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| 183 | annotation ( Diagram(
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| 184 | coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{100,100}}),
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| 185 | graphics),
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| 186 | Icon(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{
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| 187 | 100,100}}), graphics),
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| 188 | experiment(
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| 189 | StopTime=1e-011,
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| 190 | NumberOfIntervals=2000,
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| 191 | Tolerance=1e-007),
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| 192 | Documentation(info="<html>
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| 193 | <p>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.</p>
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| 194 | <p>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.</p>
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| 195 | </html>",
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| 196 | revisions="<html>
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| 197 | <ul>
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| 198 | <li><i>March 2009 </i>by Kristin Majetta initially implemented</li>
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| 199 | </ul>
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| 200 | </html>"),
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| 201 | uses(Modelica(version="3.2.1")),
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| 202 | __Dymola_experimentSetupOutput);
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| 203 | end PulseSource;
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