DC operating points of transistor circuits

DC operating points of transistor circuits

Finding a circuit’s dc operating points is an essential step in its design and involves solving systems of nonlinear algebraic equations. Of particular research and practical interests are dc analysis and simulation of electronic circuits consisting of bipolar junction and fieldeffect transistors (BJTs and FETs), which are building blocks of modern electronic circuits. In this paper, we survey ...

Threading Homotopies and DC Operating Points of Nonlinear Circuits

This paper studies continuation methods for nding isolated zeros of nonlinear functions.

Constructive homotopy methods for finding all or multiple DC operating points of nonlinear circuits and systems

This paper develops a constructive homotopy-based methodology for finding all or multiple dc operating points of nonlinear circuits and systems. Several sufficient conditions for the connectivity of all the solutions along a single homotopy path are derived. These conditions offer criteria to determine an initial guess from which all the solutions can be obtained by following the single homotop...

ENSC 895: SPECIAL TOPICS: THEORY, ANALYSIS, AND SIMULATION OF NONLINEAR CIRCUITS Computing DC operating points of non-linear circuits using homotopy methods

Xi. Transistor Circuits

The transistor circuit research is aimed at problems of general interest in communication engineering. Fundamental principles of transistor circuit design and practical limitations imposed by available devices are being investigated for circuits useful in a wide variety of applications. Present studies include work on sweep generators, temperature effects in dc amplifiers, and methods of stabil...