Stability Analysis of Electronic Circuits Using LTSPICE

An approach to computer-aided stability investigation of electronic circuits using the general-purpose circuit simulator LTSPICE is proposed. The stability is analysed in the frequency domain according to the Nyquist criterion, K and $\mu$ criteria. The influence of parameter variation and design tolerances on stability characteristics is investigated. The computer implementation is based on pre-defined functions in the graphical viewer. Examples are presented to illustrate the developed procedure for stability investigation.