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fet.h

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// SuperMix version 1.0  C++ source file
//
// Copyright (c) 1999 California Institute of Technology.
// All rights reserved.
//
// Redistribution and use in source and binary forms for noncommercial
// purposes are permitted provided that the above copyright notice and
// this paragraph are duplicated in all such forms and that any
// documentation and other materials related to such distribution and
// use acknowledge that the software was developed by California
// Institute of Technology. Redistribution and/or use in source or
// binary forms is not permitted for any commercial purpose. Use of
// this software does not include a permitted use of the Institute's
// name or trademark for any purpose.
//
// DISCLAIMER:
// THIS SOFTWARE AND/OR RELATED MATERIALS ARE PROVIDED "AS-IS" WITHOUT
// WARRANTY OF ANY KIND INCLUDING ANY WARRANTIES OF PERFORMANCE OR
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE (AS SET
// FORTH IN UCC 23212-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE
// LICENSED PRODUCT, HOWEVER USED.  IN NO EVENT SHALL CALTECH/JPL BE
// LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING BUT NOT LIMITED TO
// INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING ECONOMIC
// DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, REGARDLESS OF
// WHETHER CALTECH/JPL SHALL BE ADVISED, HAVE REASON TO KNOW, OR IN
// FACT SHALL KNOW OF THE POSSIBILITY.  THE USER BEARS ALL RISK
// RELATING TO QUALITY AND PERFORMANCE OF THE SOFTWARE AND/OR RELATED
// MATERIALS.
//

// **************************************************************************
//
// 5/12/01:  Changed comments to javadoc format.
// 11/16/99: changes to support new noise calculations
// 11/2/99:  Added support for is_source(), is_active()
// 9/22/98:  Added fet copy constructor, operator=.
// 9/18/98:  Made fet a subclass of data_ptr_nport.
//
// **************************************************************************

#ifndef FET_H
#define FET_H 1

#include "nport.h"
#include "circuit.h"
#include "elements.h"

class transconductance: public nport
{
public:
  parameter G;

  parameter Tau;

  transconductance() : nport(2), G(0.0), Tau(0.0)
    { info.source = false; }  // Transconductances are sourceless.

  int size() { return 2; }
  

private:
  // The calculation is done here.
  void recalc();
};

class fet: public data_ptr_nport
{
public:
  // Circuit elements in the model.  At this time, circuit elements
  // are public so that users can set their values for a particular fet.
  // Perhaps there is a fancier way to do it, but this method has the
  // advantage of being simple, and it works.
  inductor Lg;
  inductor Ld;
  inductor Ls;
  resistor Rg;
  resistor Rd;
  resistor Rs;
  resistor Rgs;
  resistor Rds;
  capacitor Cpg;
  capacitor Cpd;
  capacitor Cgs;
  capacitor Cds;
  capacitor Cgd;
  transconductance Gm;

  fet();

  fet(const fet & f);

  fet & operator=(const fet & f);

  int size() { return 2; }

protected:
  circuit fetckt;

private:
  // Some connector elements used to build the circuit.
  branch b1, b2;
  series_tee st3, st4, st5, st6;

  void construct();

  void fet_copy(const fet & f);

  // The calculation is done here.
  virtual void recalc()     { data_ptr = &fetckt.get_data(); }
  virtual void recalc_S()   { data_ptr = &fetckt.get_data_S(); }
};

#endif /* FET_H */

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