skippy
Junior Member
Offline
Posts: 26
|
The G matrix is the conductance, or di/dv terms.
The C matrix is the capacitance, or dq/dv terms.
h is the time step.
For MNA you would need to swap the rows of your voltage sources with other rows so that you do not have a 0 diagonal element in your Jacobian.
The C/h elements for inductors would probably be something like L/h.
Rodgrigues has a pretty good book Computer-Aided Analysis of Nonlinear Microwave Circuits Author: Paulo J. Rodrigues, Artech house, 1997
but its focus is mainly in the frequency domain.
There is also a much older book by McCalla which talks about MNA stamps: W. J. McCalla, Fundamentals of Computer-Aided Simulation. Boston: Kluwer, 1987.
|