Boundary conditions for multi-tone steady-state analysis of nonlinear integrated analog circuits

Author

Dumitriu, Lucia ; Iordache, M. ; Stamatescu, G.

Author_Institution

Electr. Eng. Dept., Politeh. Univ. of Bucharest, Bucharest

fYear

2008

fDate

10-11 July 2008

Firstpage

166

Lastpage

171

Abstract

Widely-separated time scales appear in many electronic circuits, making traditional analysis difficult even impossible if the circuits are highly nonlinear. The paper presents a new version of the modified nodal method in two time variables for the analysis of the circuit with widely separated time scales. By applying this approach the differential algebraic equations (DAE) describing the nonlinear analog circuits driven by multi-tone signals are transformed into multi-time partial differential equations (MPDEs). In order to solve MPDEs, associated resistive discrete equivalent circuits (companion circuits) for the dynamic circuit elements are used. The boundary conditions are detailed and simulation results are presented.

Keywords

analogue integrated circuits; differential algebraic equations; equivalent circuits; partial differential equations; boundary conditions; circuit analysis; differential algebraic equations; dynamic circuit elements; equivalent circuits; multitime partial differential equations; multitone analysis; multitone signals; nonlinear integrated analog circuits; steady-state analysis; Analog circuits; Boundary conditions; Circuit analysis; Circuit simulation; Computational modeling; Differential equations; Nonlinear equations; Partial differential equations; Steady-state; Time domain analysis;

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.2008.4611669

Filename

4611669