Title :
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
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;
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
DOI :
10.1109/ECCSC.2008.4611669
