A Fast Numerical Algorithm for Calculating the Given Zero-Level Instability of DC Amplifiers

摘要

A fast numerical algorithm for calculating the given instability of the zero level of DC amplifiers is considered. Traditional methods for calculating the instability of nonlinear electronic circuits require repeated calculations of the stationary mode of the simulated nonlinear circuit, followed by the calculation of the sensitivity of the values of the coordinates of the operating points to variations in the parameters of the components. In contrast to them, the method proposed in this article is based on performing a single linearization of the nonlinear characteristics of the components only at the initial stage of solving the problem. At the subsequent stages of solving the problem, the linearized representation of the components is used to calculate the given instability under the influence of external influences and the technological spread of parameters during the serial production of the developed circuit.