A frequency domain method for analysis of dynamic circuits with resistive nonlinearities

Author

Hantila, I.F. ; Constantinescu, F. ; Gheorghe, A.G. ; Nitescu, M.

Author_Institution

Politeh. Univ., Bucharest

fYear

2008

fDate

10-11 July 2008

Firstpage

201

Lastpage

204

Abstract

Consider a dynamic circuit containing nonlinear resistors, the other elements being linear. Each nonlinear resistor is replaced by a set of equivalent sources which are current or voltage dependent. The parameters of these sources are corrected iteratively. In order to find the new controlling voltages (currents) linear sinusoidal problems are solved for source harmonics. The convergence of this iterative procedure is proved. This method gives correct results for strongly nonlinear circuits driven by modulated signals, unlike the harmonic balance method. An example is given for illustration.

Keywords

convergence of numerical methods; frequency-domain analysis; iterative methods; nonlinear network analysis; resistors; convergence speed; dynamic circuit analysis; frequency domain method; iterative procedure; linear sinusoidal problems; nonlinear circuits; nonlinear resistors; resistive nonlinearities; source harmonics; Circuit analysis; Circuit simulation; Computational modeling; Convergence; Frequency domain analysis; Nonlinear circuits; Radio frequency; Resistors; Steady-state; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems for Communications, 2008. ECCSC 2008. 4th European Conference on

Conference_Location

Bucharest

Print_ISBN

978-1-4244-2419-1

Electronic_ISBN

978-1-4244-2420-7

Type

conf

DOI

10.1109/ECCSC.2008.4611677

Filename

4611677