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Added verilog-A ideal voltage controlled resistor.
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Richard C Crozier
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Feb 13, 2014
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,46 @@ | ||
| // Qucs resistive potentiometer model: | ||
| // This model can be used to construct working lin, log and inverse log | ||
| // potentiometers, or other devices with designer specified resistive taper functions. | ||
| // All required parameters can be extracted directly from | ||
| // manufacturers data sheets. | ||
| // | ||
| // The structure and theoretical background to the potentiometer | ||
| // Verilog-a model are presented in the Qucs potentiometer report. | ||
| // | ||
| // This is free software; you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation; either version 2, or (at your option) | ||
| // any later version. | ||
| // | ||
| // Copyright (C), Richard Crozier, richard DOT crozier AT yahoo DOT co DOT uk, February 2013. | ||
| // | ||
| `include "disciplines.vams" | ||
| `include "constants.vams" | ||
| // | ||
| module vcresistor (C1, C2, P1, P2); | ||
| inout P1, P2; | ||
| input C1, C2; | ||
| electrical C1, C2, P1, P2; | ||
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| `define attr(txt) (*txt*) | ||
| // | ||
| parameter real gain = 1 from [1e-6 : inf] | ||
| `attr(info="Gain" unit = "Ohm/Volt"); | ||
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| real resistance; | ||
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| analog begin | ||
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| // Macromodel | ||
| // | ||
| // resistance is the voltage across the input ports | ||
| resistance = V(C1,C2) * gain; | ||
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| if (resistance>0.0) | ||
| I(P1, P2) <+ V(P1, P2)/resistance ; | ||
| else | ||
| V(P1, P2) <+ 0.0 ; | ||
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| end | ||
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| endmodule |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,90 @@ | ||
| /*************************************************************************** | ||
| vcresistor.cpp - description | ||
| ------------------- | ||
| begin : Feb 13 2014 | ||
| copyright : (C) 2014 by Richard Crozier | ||
| email : richard dot crozier at yahoo dot co dot uk | ||
| ***************************************************************************/ | ||
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| /*************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
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| #include "vcresistor.h" | ||
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| vcresistor::vcresistor() | ||
| { | ||
| Description = QObject::tr("voltage controlled voltage source"); | ||
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| // The resistor shape | ||
| Lines.append(new Line(5, 18, 5, -18, QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line(17, 18, 17, -18, QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line(5, 18, 17, 18, QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line(5, -18, 17, -18, QPen(Qt::darkBlue,2))); | ||
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| // horizontal lines on top and bottom of left hand side | ||
| Lines.append(new Line(-30,-30,-12,-30,QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line(-30, 30,-12, 30,QPen(Qt::darkBlue,2))); | ||
| // horizontal lines on top and bottom of right hand side | ||
| Lines.append(new Line( 11,-30, 30,-30,QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line( 11, 30, 30, 30,QPen(Qt::darkBlue,2))); | ||
| // vertical lines on top and bottom of left hand side | ||
| Lines.append(new Line(-12,-30,-12,-23,QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line(-12, 30,-12, 23,QPen(Qt::darkBlue,2))); | ||
| // vertical lines on top and bottom of right hand side | ||
| Lines.append(new Line( 11,-30, 11,-18,QPen(Qt::darkBlue,2))); | ||
| Lines.append(new Line( 11, 30, 11, 18,QPen(Qt::darkBlue,2))); | ||
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| // downward pointing arrow | ||
| Lines.append(new Line(-12,-18,-12, 18,QPen(Qt::darkBlue,1))); | ||
| Lines.append(new Line(-12, 18,-17, 9,QPen(Qt::darkBlue,1))); | ||
| Lines.append(new Line(-12, 18, -7, 9,QPen(Qt::darkBlue,1))); | ||
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| Lines.append(new Line(-25,-27, 25,-27,QPen(Qt::darkGray,1))); | ||
| Lines.append(new Line( 25,-27, 25, 27,QPen(Qt::darkGray,1))); | ||
| Lines.append(new Line( 25, 27,-25, 27,QPen(Qt::darkGray,1))); | ||
| Lines.append(new Line(-25, 27,-25,-27,QPen(Qt::darkGray,1))); | ||
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| Ports.append(new Port(-30,-30)); | ||
| Ports.append(new Port(-30, 30)); | ||
| Ports.append(new Port( 30,-30)); | ||
| Ports.append(new Port( 30, 30)); | ||
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| x1 = -30; y1 = -30; | ||
| x2 = 30; y2 = 30; | ||
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| tx = x1+4; | ||
| ty = y2+4; | ||
| Model = "vcresistor"; | ||
| Name = "VCR"; | ||
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| Props.append(new Property("gain", "1", true, | ||
| QObject::tr("resistance gain"))); | ||
| } | ||
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| vcresistor::~vcresistor() | ||
| { | ||
| } | ||
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| Component* vcresistor::newOne() | ||
| { | ||
| return new vcresistor(); | ||
| } | ||
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| Element* vcresistor::info(QString& Name, char* &BitmapFile, bool getNewOne) | ||
| { | ||
| Name = QObject::tr("Voltage Controlled Resistor"); | ||
| BitmapFile = (char *) "vcresistor"; | ||
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| if(getNewOne) return new vcresistor(); | ||
| return 0; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| /*************************************************************************** | ||
| vcresistor.h - description | ||
| ------------------- | ||
| begin : Feb 13 2014 | ||
| copyright : (C) 2014 Richard Crozier | ||
| email : richard dot crozier at yahoo.co.uk | ||
| ***************************************************************************/ | ||
|
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||
| /*************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
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| #ifndef VCRESISTOR_H | ||
| #define VCRESISTOR_H | ||
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| #include "component.h" | ||
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| class vcresistor : public Component { | ||
| public: | ||
| vcresistor(); | ||
| ~vcresistor(); | ||
| Component* newOne(); | ||
| static Element* info(QString&, char* &, bool getNewOne=false); | ||
| }; | ||
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| #endif |
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