Title :
Evaluation of the large-signal behaviour of active filters
Author :
Bowron, P. ; Carroll, A. P O
Author_Institution :
Sch. of Electr. & Electron. Eng., Bradford Univ., UK
Abstract :
A describing function representation of the saturation nonlinearity of operational amplifiers is used to formulate the nonlinear transfer functions of multiple-amplifier filters. The efficacy of various functional approximations for shortening computer time is assessed. Computationally efficient means of predicting jump resonance and nonlinear oscillations are presented, based on the representation.<>
Keywords :
active filters; frequency response; nonlinear network analysis; stability; active filters; describing function representation; frequency response; functional approximations; jump resonance; large-signal behaviour; multiple-amplifier filters; nonlinear oscillations; nonlinear transfer functions; operational amplifiers; saturation nonlinearity; stability properties; Active filters; Application software; Frequency; Operational amplifiers; Performance analysis; Piecewise linear techniques; Polynomials; Resonance; Threshold voltage; Transfer functions;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15431
