Title :
On the uniqueness of a circuit´s DC operating point when its transistors have variable current gains
Author :
Green, Michael ; Willson, Alan N., Jr.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
The theory regarding the uniqueness of the DC operating point of bipolar transistor circuits is extended to the more general situation where each transistor model´s controlled-source current gains are allowed to vary. It is shown that, in certain cases, a transistor with variable current gain can be modeled at two of its operating points as a transistor with fixed gain combined with nonpassive elements
Keywords :
bipolar transistor circuits; nonlinear network analysis; semiconductor device models; DC operating point; bipolar transistor circuits; controlled-source current gains; transistor model; variable current gains; Bipolar transistor circuits; Circuit analysis; Diodes; Electric variables control; Equations; Gain; Resistors; Voltage;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.102075
