Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / secs1d-0.0.8 / DDG / DDGp2phip.m

diff --git a/octave_packages/secs1d-0.0.8/DDG/DDGp2phip.m b/octave_packages/secs1d-0.0.8/DDG/DDGp2phip.m
new file mode 100644 (file)
index 0000000..06f34c1
--- /dev/null
+++ b/octave_packages/secs1d-0.0.8/DDG/DDGp2phip.m
@@ -0,0 +1,38 @@
+function phip = DDGp2phip (V,p);
+
+% phip = DDGp2phip (V,p);
+% computes the qfl for holes using Maxwell-Boltzmann statistics
+ 
+% This file is part of 
+%
+%            MNME1D - A 1-D Drift--Diffusion Semiconductor Device Simulator
+%         -------------------------------------------------------------------
+%            Copyright (C) 2004  Carlo de Falco
+%
+%
+%
+%  MNME1D 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.
+%
+%  MNME1D 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 MNME1D; If not, see <http://www.gnu.org/licenses/>.
+ 
+  
+% load constants
+
+  pmin = 0;
+    
+  p    = p .* (p>pmin) + pmin * (p<=pmin);
+  phip = V + log(p) ;
+  
+
+  % Last Revision:
+  % $Author: adb014 $
+  % $Date: 2008-02-04 16:26:27 +0100 (man, 04 feb 2008) $