| 1 | within Modelica.Electrical.Analog.Examples; |
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| 2 | model CauerLowPassOPV "Cauer low pass filter with operational amplifiers" |
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| 3 | |
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| 4 | annotation (Diagram(coordinateSystem(preserveAspectRatio=true, extent={{-250,-200},{ |
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| 5 | 250,200}}), graphics={Text( |
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| 6 | extent={{-130,172},{80,120}}, |
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| 7 | textString="CauerLowPassOPV", |
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| 8 | lineColor={0,0,255})}), |
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| 9 | experiment(StopTime=60), |
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| 10 | Documentation(revisions="<html> |
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| 11 | <ul> |
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| 12 | <li><i>January 13, 2006</i> |
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| 13 | by Christoph Clauss<br> |
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| 14 | included into Modelica Standard Library</li> |
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| 15 | <li><i>September 15, 2005</i> |
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| 16 | by by Peter Trappe designed and by Teresa Schlegel<br> |
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| 17 | initially modelled.</li> |
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| 18 | </ul> |
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| 19 | </html>", info="<html> |
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| 20 | The example Cauer Filter is a low-pass-filter of the fifth order. It is realized |
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| 21 | using an analog network with operational amplifiers. The voltage source V is the input voltage (step), |
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| 22 | and the OP5.out.v is the filter output voltage. The pulse response is calculated. |
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| 23 | <p> |
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| 24 | This model is identical to the CauerLowPassAnalog example, but inverting. To get the same response |
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| 25 | as that of the CauerLowPassAnalog example, a negative voltage step is used as input. |
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| 26 | <p> |
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| 27 | The simulation end time should be 60. Please plot both V.v (which is the inverted input voltage) and OP5.p.v (output voltage). Compare this result with the CauerLowPassAnalog result. |
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| 28 | <p> |
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| 29 | During translation some warnings are issued concerning resistor values (Value=-1 not in range[0,1.e+100]). |
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| 30 | Do not worry about it. The negative values are o.k. |
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| 31 | <p> |
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| 32 | </html>"), |
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| 33 | Icon(coordinateSystem(preserveAspectRatio=true, extent={{-250,-200},{250, |
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| 34 | 200}}), graphics={ |
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| 35 | Rectangle( |
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| 36 | extent={{-100,-80},{80,70}}, |
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| 37 | fillColor={255,255,255}, |
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| 38 | fillPattern=FillPattern.Solid, |
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| 39 | lineColor={0,0,255}), |
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| 40 | Polygon( |
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| 41 | points={{-100,70},{-80,90},{100,90},{80,70},{-100,70}}, |
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| 42 | fillColor={255,255,255}, |
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| 43 | fillPattern=FillPattern.Solid, |
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| 44 | lineColor={0,0,255}), |
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| 45 | Polygon( |
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| 46 | points={{100,90},{100,-60},{80,-80},{80,70},{100,90}}, |
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| 47 | fillColor={255,255,255}, |
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| 48 | fillPattern=FillPattern.Solid, |
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| 49 | lineColor={0,0,255}), |
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| 50 | Text( |
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| 51 | extent={{-96,23},{77,-29}}, |
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| 52 | lineColor={0,0,255}, |
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| 53 | textString="Example"), |
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| 54 | Text( |
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| 55 | extent={{-120,152},{120,93}}, |
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| 56 | lineColor={255,0,0}, |
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| 57 | textString="%name")})); |
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| 58 | |
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| 59 | parameter Modelica.SIunits.Capacitance l1=1.304 "filter coefficient i1"; |
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| 60 | parameter Modelica.SIunits.Capacitance l2=0.8586 "filter coefficient i2"; |
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| 61 | parameter Modelica.SIunits.Capacitance c1=1.072 "filter coefficient c1"; |
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| 62 | parameter Modelica.SIunits.Capacitance c2=1/(1.704992^2*l1) |
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| 63 | "filter coefficient c2"; |
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| 64 | parameter Modelica.SIunits.Capacitance c3=1.682 "filter coefficient c3"; |
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| 65 | parameter Modelica.SIunits.Capacitance c4=1/(1.179945^2*l2) |
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| 66 | "filter coefficient c4"; |
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| 67 | parameter Modelica.SIunits.Capacitance c5=0.7262 "filter coefficient c5"; |
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| 68 | Modelica.Electrical.Analog.Basic.Capacitor C1(C=c1 + c2) |
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| 69 | annotation (Placement(transformation(extent={{-192,10},{-172,30}}, rotation= |
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| 70 | 0))); |
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| 71 | Modelica.Electrical.Analog.Basic.Capacitor C2(C=c2) |
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| 72 | annotation (Placement(transformation(extent={{-240,-90},{-220,-70}}, |
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| 73 | rotation=0))); |
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| 74 | Modelica.Electrical.Analog.Basic.Capacitor C3(C=l1) |
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| 75 | annotation (Placement(transformation(extent={{-90,10},{-70,30}}, rotation=0))); |
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| 76 | Modelica.Electrical.Analog.Basic.Capacitor C4(C=c4) |
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| 77 | annotation (Placement(transformation(extent={{-30,30},{-10,50}}, rotation=0))); |
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| 78 | Modelica.Electrical.Analog.Basic.Capacitor C5(C=c2) |
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| 79 | annotation (Placement(transformation(extent={{-30,-120},{-10,-100}}, |
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| 80 | rotation=0))); |
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| 81 | Modelica.Electrical.Analog.Basic.Resistor R1 |
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| 82 | annotation (Placement(transformation(extent={{-240,-50},{-220,-30}}, |
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| 83 | rotation=0))); |
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| 84 | Modelica.Electrical.Analog.Basic.Resistor R2 |
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| 85 | annotation (Placement(transformation(extent={{-240,-10},{-220,10}}, |
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| 86 | rotation=0))); |
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| 87 | Modelica.Electrical.Analog.Basic.Resistor R3 |
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| 88 | annotation (Placement(transformation(extent={{-193,50},{-173,70}}, rotation= |
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| 89 | 0))); |
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| 90 | Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin Op1 |
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| 91 | annotation (Placement(transformation(extent={{-200,-70},{-160,-30}}, |
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| 92 | rotation=0))); |
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| 93 | Modelica.Electrical.Analog.Basic.Ground G |
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| 94 | annotation (Placement(transformation(extent={{-188,-96},{-174,-80}}, |
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| 95 | rotation=0))); |
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| 96 | Modelica.Electrical.Analog.Basic.Resistor R4(R=-1) |
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| 97 | annotation (Placement(transformation(extent={{-140,-60},{-120,-40}}, |
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| 98 | rotation=0))); |
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| 99 | Modelica.Electrical.Analog.Basic.Resistor R5(R=-1) |
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| 100 | annotation (Placement(transformation(extent={{-140,-100},{-120,-80}}, |
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| 101 | rotation=0))); |
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| 102 | Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin Op2 |
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| 103 | annotation (Placement(transformation(extent={{-100,-70},{-60,-30}}, |
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| 104 | rotation=0))); |
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| 105 | Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin Op3 |
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| 106 | annotation (Placement(transformation(extent={{6,-70},{46,-30}}, rotation=0))); |
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| 107 | Modelica.Electrical.Analog.Basic.Ground G1 |
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| 108 | annotation (Placement(transformation(extent={{-87,-96},{-73,-80}}, rotation= |
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| 109 | 0))); |
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| 110 | Modelica.Electrical.Analog.Basic.Resistor R6 |
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| 111 | annotation (Placement(transformation(extent={{-31,-10},{-11,10}}, rotation= |
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| 112 | 0))); |
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| 113 | Modelica.Electrical.Analog.Basic.Resistor R7 |
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| 114 | annotation (Placement(transformation(extent={{-31,-60},{-11,-40}}, rotation= |
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| 115 | 0))); |
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| 116 | Modelica.Electrical.Analog.Basic.Capacitor C6(C=c2 + c3 + c4) |
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| 117 | annotation (Placement(transformation(extent={{9,10},{29,30}}, rotation=0))); |
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| 118 | Modelica.Electrical.Analog.Basic.Resistor R8(R=-1) |
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| 119 | annotation (Placement(transformation(extent={{60,-10},{80,10}}, rotation=0))); |
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| 120 | Modelica.Electrical.Analog.Basic.Resistor R9(R=-1) |
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| 121 | annotation (Placement(transformation(extent={{60,-60},{80,-40}}, rotation=0))); |
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| 122 | Modelica.Electrical.Analog.Basic.Resistor R10 |
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| 123 | annotation (Placement(transformation(extent={{160,-60},{180,-40}}, rotation= |
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| 124 | 0))); |
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| 125 | Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin Op4 |
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| 126 | annotation (Placement(transformation(extent={{100,-70},{140,-30}}, rotation= |
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| 127 | 0))); |
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| 128 | Modelica.Electrical.Analog.Ideal.IdealOpAmp3Pin Op5 |
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| 129 | annotation (Placement(transformation(extent={{200,-70},{240,-30}}, rotation= |
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| 130 | 0))); |
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| 131 | Modelica.Electrical.Analog.Basic.Capacitor C7(C=l2) |
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| 132 | annotation (Placement(transformation(extent={{110,10},{130,30}}, rotation=0))); |
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| 133 | Modelica.Electrical.Analog.Basic.Capacitor C8(C=c4) |
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| 134 | annotation (Placement(transformation(extent={{160,-150},{180,-130}}, |
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| 135 | rotation=0))); |
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| 136 | Modelica.Electrical.Analog.Basic.Capacitor C9(C=c4 + c5) |
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| 137 | annotation (Placement(transformation(extent={{208,-10},{228,10}}, rotation= |
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| 138 | 0))); |
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| 139 | Modelica.Electrical.Analog.Basic.Resistor R11 |
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| 140 | annotation (Placement(transformation(extent={{209,30},{229,50}}, rotation=0))); |
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| 141 | protected |
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| 142 | Modelica.Electrical.Analog.Interfaces.NegativePin n1 |
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| 143 | annotation (Placement(transformation(extent={{-214,-42},{-210,-38}}, |
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| 144 | rotation=0))); |
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| 145 | protected |
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| 146 | Modelica.Electrical.Analog.Interfaces.NegativePin n2 |
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| 147 | annotation (Placement(transformation(extent={{-214,-2},{-210,2}}, rotation= |
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| 148 | 0))); |
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| 149 | protected |
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| 150 | Modelica.Electrical.Analog.Interfaces.NegativePin n3 |
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| 151 | annotation (Placement(transformation(extent={{-214,18},{-210,22}}, rotation= |
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| 152 | 0))); |
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| 153 | protected |
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| 154 | Modelica.Electrical.Analog.Interfaces.NegativePin n4 |
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| 155 | annotation (Placement(transformation( |
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| 156 | origin={-160,20}, |
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| 157 | extent={{2,2},{-2,-2}}, |
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| 158 | rotation=180))); |
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| 159 | protected |
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| 160 | Modelica.Electrical.Analog.Interfaces.NegativePin n5 |
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| 161 | annotation (Placement(transformation(extent={{-114,-52},{-110,-48}}, |
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| 162 | rotation=0))); |
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| 163 | protected |
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| 164 | Modelica.Electrical.Analog.Interfaces.PositivePin p1 |
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| 165 | annotation (Placement(transformation(extent={{-154,-142},{-148,-138}}, |
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| 166 | rotation=0))); |
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| 167 | protected |
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| 168 | Modelica.Electrical.Analog.Interfaces.NegativePin n6 |
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| 169 | annotation (Placement(transformation(extent={{-62,18},{-58,22}}, rotation=0))); |
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| 170 | protected |
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| 171 | Modelica.Electrical.Analog.Interfaces.NegativePin n7 |
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| 172 | annotation (Placement(transformation(extent={{-6,-52},{-2,-48}}, rotation=0))); |
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| 173 | protected |
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| 174 | Modelica.Electrical.Analog.Interfaces.NegativePin n8 |
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| 175 | annotation (Placement(transformation(extent={{-6,-2},{-2,2}}, rotation=0))); |
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| 176 | protected |
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| 177 | Modelica.Electrical.Analog.Interfaces.PositivePin p2 |
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| 178 | annotation (Placement(transformation(extent={{-6,18},{-2,22}}, rotation=0))); |
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| 179 | protected |
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| 180 | Modelica.Electrical.Analog.Interfaces.PositivePin out1 |
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| 181 | annotation (Placement(transformation(extent={{44,-142},{48,-138}}, rotation= |
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| 182 | 0))); |
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| 183 | protected |
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| 184 | Modelica.Electrical.Analog.Interfaces.PositivePin p3 |
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| 185 | annotation (Placement(transformation(extent={{58,58},{62,62}}, rotation=0))); |
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| 186 | protected |
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| 187 | Modelica.Electrical.Analog.Interfaces.NegativePin n9 |
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| 188 | annotation (Placement(transformation(extent={{86,-2},{90,2}}, rotation=0))); |
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| 189 | protected |
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| 190 | Modelica.Electrical.Analog.Interfaces.NegativePin n10 |
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| 191 | annotation (Placement(transformation(extent={{86,-52},{90,-48}}, rotation=0))); |
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| 192 | protected |
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| 193 | Modelica.Electrical.Analog.Interfaces.NegativePin n11 |
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| 194 | annotation (Placement(transformation(extent={{138,18},{142,22}}, rotation=0))); |
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| 195 | public |
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| 196 | Modelica.Electrical.Analog.Basic.Ground G2 |
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| 197 | annotation (Placement(transformation(extent={{12,-96},{26,-80}}, rotation=0))); |
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| 198 | protected |
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| 199 | Modelica.Electrical.Analog.Interfaces.NegativePin n12 |
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| 200 | annotation (Placement(transformation(extent={{238,38},{242,42}}, rotation=0))); |
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| 201 | protected |
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| 202 | Modelica.Electrical.Analog.Interfaces.NegativePin n13 |
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| 203 | annotation (Placement(transformation(extent={{238,-2},{242,2}}, rotation=0))); |
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| 204 | protected |
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| 205 | Modelica.Electrical.Analog.Interfaces.PositivePin p4 |
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| 206 | annotation (Placement(transformation(extent={{188,-2},{194,2}}, rotation=0))); |
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| 207 | protected |
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| 208 | Modelica.Electrical.Analog.Interfaces.NegativePin n14 |
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| 209 | annotation (Placement(transformation(extent={{188,-52},{194,-48}}, rotation= |
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| 210 | 0))); |
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| 211 | public |
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| 212 | Modelica.Electrical.Analog.Basic.Ground G3 |
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| 213 | annotation (Placement(transformation(extent={{113,-96},{127,-80}}, rotation= |
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| 214 | 0))); |
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| 215 | Modelica.Electrical.Analog.Basic.Ground G4 |
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| 216 | annotation (Placement(transformation(extent={{213,-96},{227,-80}}, rotation= |
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| 217 | 0))); |
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| 218 | Modelica.Electrical.Analog.Sources.StepVoltage V(startTime=1) |
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| 219 | annotation (Placement(transformation( |
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| 220 | origin={-240,-170}, |
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| 221 | extent={{-10,-10},{10,10}}, |
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| 222 | rotation=90))); |
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| 223 | Modelica.Electrical.Analog.Basic.Ground Ground1 |
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| 224 | annotation (Placement(transformation(extent={{-246,-202},{-234,-190}}, |
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| 225 | rotation=0))); |
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| 226 | equation |
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| 227 | connect(Op1.in_p, G.p) annotation (Line(points={{-200,-60},{-200,-70},{-180, |
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| 228 | -70},{-180,-80},{-181,-80}}, color={0,0,255})); |
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| 229 | connect(G1.p, Op2.in_p) annotation (Line(points={{-80,-80},{-80,-70},{-100, |
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| 230 | -70},{-100,-60}}, color={0,0,255})); |
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| 231 | connect(R1.n, n1) annotation (Line(points={{-220,-40},{-212,-40}}, color={0,0, |
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| 232 | 255})); |
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| 233 | connect(n1, Op1.in_n) annotation (Line(points={{-212,-40},{-200,-40}}, color= |
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| 234 | {0,0,255})); |
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| 235 | connect(C2.n, n1) annotation (Line(points={{-220,-80},{-212,-80},{-212,-40}}, |
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| 236 | color={0,0,255})); |
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| 237 | connect(R2.n, n2) |
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| 238 | annotation (Line(points={{-220,0},{-212,0}}, color={0,0,255})); |
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| 239 | connect(n1, n2) |
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| 240 | annotation (Line(points={{-212,-40},{-212,0}}, color={0,0,255})); |
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| 241 | connect(n2, n3) |
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| 242 | annotation (Line(points={{-212,0},{-212,20}}, color={0,0,255})); |
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| 243 | connect(n3, C1.p) |
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| 244 | annotation (Line(points={{-212,20},{-192,20}}, color={0,0,255})); |
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| 245 | connect(n3, R3.p) annotation (Line(points={{-212,20},{-212,60},{-193,60}}, |
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| 246 | color={0,0,255})); |
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| 247 | connect(C1.n, n4) |
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| 248 | annotation (Line(points={{-172,20},{-160,20}}, color={0,0,255})); |
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| 249 | connect(R3.n, n4) annotation (Line(points={{-173,60},{-160,60},{-160,20}}, |
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| 250 | color={0,0,255})); |
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| 251 | connect(n4, Op1.out) annotation (Line(points={{-160,20},{-160,-50}}, color={0, |
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| 252 | 0,255})); |
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| 253 | connect(R4.p, Op1.out) annotation (Line(points={{-140,-50},{-160,-50}}, color= |
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| 254 | {0,0,255})); |
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| 255 | connect(C5.p, Op1.out) annotation (Line(points={{-30,-110},{-160,-110},{-160, |
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| 256 | -50}}, color={0,0,255})); |
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| 257 | connect(R4.n, n5) annotation (Line(points={{-120,-50},{-112,-50}}, color={0,0, |
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| 258 | 255})); |
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| 259 | connect(n5, Op2.in_n) annotation (Line(points={{-112,-50},{-112,-40},{-100, |
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| 260 | -40}}, color={0,0,255})); |
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| 261 | connect(C3.p, n5) annotation (Line(points={{-90,20},{-112,20},{-112,-50}}, |
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| 262 | color={0,0,255})); |
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| 263 | connect(R5.n, n5) annotation (Line(points={{-120,-90},{-112,-90},{-112,-50}}, |
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| 264 | color={0,0,255})); |
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| 265 | connect(R5.p, p1) annotation (Line(points={{-140,-90},{-151,-90},{-151,-140}}, |
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| 266 | color={0,0,255})); |
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| 267 | connect(C2.p, p1) annotation (Line(points={{-240,-80},{-240,-140},{-151,-140}}, |
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| 268 | color={0,0,255})); |
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| 269 | connect(C3.n, n6) |
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| 270 | annotation (Line(points={{-70,20},{-60,20}}, color={0,0,255})); |
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| 271 | connect(n6, Op2.out) |
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| 272 | annotation (Line(points={{-60,20},{-60,-50}}, color={0,0,255})); |
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| 273 | connect(R2.p, n6) annotation (Line(points={{-240,0},{-240,80},{-60,80},{-60, |
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| 274 | 20}}, color={0,0,255})); |
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| 275 | connect(Op2.out, R7.p) |
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| 276 | annotation (Line(points={{-60,-50},{-31,-50}}, color={0,0,255})); |
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| 277 | connect(R7.n, n7) |
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| 278 | annotation (Line(points={{-11,-50},{-4,-50}}, color={0,0,255})); |
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| 279 | connect(n7, Op3.in_n) annotation (Line(points={{-4,-50},{-4,-40},{6,-40}}, |
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| 280 | color={0,0,255})); |
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| 281 | connect(C5.n, n7) annotation (Line(points={{-10,-110},{-4,-110},{-4,-50}}, |
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| 282 | color={0,0,255})); |
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| 283 | connect(R6.n, n8) |
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| 284 | annotation (Line(points={{-11,0},{-4,0}}, color={0,0,255})); |
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| 285 | connect(n7, n8) annotation (Line(points={{-4,-50},{-4,0},{-4,0}}, color={0,0, |
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| 286 | 255})); |
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| 287 | connect(C6.p, p2) |
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| 288 | annotation (Line(points={{9,20},{-4,20}}, color={0,0,255})); |
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| 289 | connect(n8, p2) |
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| 290 | annotation (Line(points={{-4,0},{-4,20}}, color={0,0,255})); |
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| 291 | connect(C4.n, p2) annotation (Line(points={{-10,40},{-4,40},{-4,20}}, color={ |
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| 292 | 0,0,255})); |
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| 293 | connect(C6.n, Op3.out) annotation (Line(points={{29,20},{46,20},{46,-50}}, |
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| 294 | color={0,0,255})); |
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| 295 | connect(R9.p, Op3.out) |
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| 296 | annotation (Line(points={{60,-50},{46,-50}}, color={0,0,255})); |
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| 297 | connect(Op3.out, out1) |
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| 298 | annotation (Line(points={{46,-50},{46,-140}}, color={0,0,255})); |
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| 299 | connect(p1, out1) annotation (Line(points={{-151,-140},{46,-140}}, color={0,0, |
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| 300 | 255})); |
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| 301 | connect(out1, C8.p) annotation (Line(points={{46,-140},{160,-140}}, color={0, |
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| 302 | 0,255})); |
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| 303 | connect(C4.p, p3) annotation (Line(points={{-30,40},{-40,40},{-40,60},{60,60}}, |
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| 304 | color={0,0,255})); |
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| 305 | connect(p3, R8.p) |
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| 306 | annotation (Line(points={{60,60},{60,0}}, color={0,0,255})); |
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| 307 | connect(R8.n, n9) |
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| 308 | annotation (Line(points={{80,0},{88,0}}, color={0,0,255})); |
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| 309 | connect(n9, n10) |
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| 310 | annotation (Line(points={{88,0},{88,-50}}, color={0,0,255})); |
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| 311 | connect(R9.n, n10) |
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| 312 | annotation (Line(points={{80,-50},{88,-50}}, color={0,0,255})); |
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| 313 | connect(n10, Op4.in_n) annotation (Line(points={{88,-50},{88,-40},{100,-40}}, |
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| 314 | color={0,0,255})); |
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| 315 | connect(n9, C7.p) annotation (Line(points={{88,0},{88,20},{110,20}}, color={0, |
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| 316 | 0,255})); |
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| 317 | connect(C7.n, n11) |
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| 318 | annotation (Line(points={{130,20},{140,20}}, color={0,0,255})); |
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| 319 | connect(R6.p, n11) annotation (Line(points={{-31,0},{-48,0},{-48,80},{140,80}, |
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| 320 | {140,20}}, color={0,0,255})); |
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| 321 | connect(n11, Op4.out) |
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| 322 | annotation (Line(points={{140,20},{140,-50}}, color={0,0,255})); |
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| 323 | connect(Op4.out, R10.p) |
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| 324 | annotation (Line(points={{140,-50},{160,-50}}, color={0,0,255})); |
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| 325 | connect(G2.p, Op3.in_p) annotation (Line(points={{19,-80},{6,-80},{6,-60}}, |
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| 326 | color={0,0,255})); |
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| 327 | connect(R11.n, n12) |
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| 328 | annotation (Line(points={{229,40},{240,40}}, color={0,0,255})); |
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| 329 | connect(p3, n12) annotation (Line(points={{60,60},{240,60},{240,40}}, color={ |
|---|
| 330 | 0,0,255})); |
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| 331 | connect(C9.n, n13) |
|---|
| 332 | annotation (Line(points={{228,0},{240,0}}, color={0,0,255})); |
|---|
| 333 | connect(n12, n13) |
|---|
| 334 | annotation (Line(points={{240,40},{240,0}}, color={0,0,255})); |
|---|
| 335 | connect(n13, Op5.out) |
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| 336 | annotation (Line(points={{240,0},{240,-50}}, color={0,0,255})); |
|---|
| 337 | connect(C9.p, p4) |
|---|
| 338 | annotation (Line(points={{208,0},{191,0}}, color={0,0,255})); |
|---|
| 339 | connect(R11.p, p4) annotation (Line(points={{209,40},{191,40},{191,0}}, color= |
|---|
| 340 | {0,0,255})); |
|---|
| 341 | connect(R10.n, n14) |
|---|
| 342 | annotation (Line(points={{180,-50},{191,-50}}, color={0,0,255})); |
|---|
| 343 | connect(p4, n14) |
|---|
| 344 | annotation (Line(points={{191,0},{191,-50}}, color={0,0,255})); |
|---|
| 345 | connect(Op5.in_n, n14) annotation (Line(points={{200,-40},{191,-40},{191,-50}}, |
|---|
| 346 | color={0,0,255})); |
|---|
| 347 | connect(C8.n, n14) annotation (Line(points={{180,-140},{191,-140},{191,-50}}, |
|---|
| 348 | color={0,0,255})); |
|---|
| 349 | connect(Op4.in_p, G3.p) annotation (Line(points={{100,-60},{100,-80},{120,-80}}, |
|---|
| 350 | color={0,0,255})); |
|---|
| 351 | connect(Op5.in_p, G4.p) annotation (Line(points={{200,-60},{200,-80},{220,-80}}, |
|---|
| 352 | color={0,0,255})); |
|---|
| 353 | connect(V.p, Ground1.p) annotation (Line(points={{-240,-180},{-240, |
|---|
| 354 | -190}}, color={0,0,255})); |
|---|
| 355 | connect(V.n, R1.p) annotation (Line(points={{-240,-160},{-250,-160}, |
|---|
| 356 | {-250,-40},{-240,-40}}, color={0,0,255})); |
|---|
| 357 | end CauerLowPassOPV; |
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