| Author | Message | ||
     Ubbo Sathla (gradiente) New member Username: gradiente Post Number: 1 Registered: 09-2009 |
hi. i need draw a base current in a transistor the eq is Ib: q*A*(Dp/Lp)*((grad(Pe)+grad(Pc))*tanh(Wb/2*Lp)). how i can define a Boundaries with this? VARIABLES Ib Ic Ie Pe Pc DEFINITIONS Wb = 4.e-3 Dp = 0.544 Lp = 0.55 q = 0.001 A = 0.001 | ||
| Robert G. Nelson (rgnelson) Moderator Username: rgnelson Post Number: 1292 Registered: 06-2003 |
You will need to construct a PDE system for Pe and Pc and define the geometry of the transistor. |