view extra/secs1d/bak/DDG/DDGp2phip.m @ 9872:e567b7ac3d1f octave-forge

new version of secs1d
author cdf
date Sun, 25 Mar 2012 22:44:30 +0000
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## Copyright (C) 2004-2008  Carlo de Falco
##
## SECS1D - A 1-D Drift--Diffusion Semiconductor Device Simulator
##
## SECS1D 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.
##
## SECS1D is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with SECS1D; If not, see <http://www.gnu.org/licenses/>.
##
## author: Carlo de Falco <cdf _AT_ users.sourceforge.net>

## -*- texinfo -*-
##
## @deftypefn {Function File}@
## {@var{phip}} = DDGn2phin(@var{V},@var{p})
##
## Compute the qfl for holes using Maxwell-Boltzmann statistics
##
## @end deftypefn
  
function phip = DDGp2phip (V,p);

  ## Load constants
  pmin = 0;
  p    = p .* (p>pmin) + pmin * (p<=pmin);
  phip = V + log(p) ;
  
endfunction