October 2002
Intermediate to advanced
432 pages
9h 20m
English
SPICE calculates a dc beta, βDC, when ISE and NE are included in the transistor model. The equation for the calculation uses βDC = IC/IB, where IB (forward-active mode) includes the ideal and leakage terms, (B.12),

and IC is the collector current for the forward-active mode, (B.7),

Using (B.7) and (B.12) in the definition of βDC, we obtain
Equation B.36

which is
Equation B.37