Showing papers by "Lorenzo Sciavicco published in 1979"
TL;DR: An exact method of analysis is presented for a class of pulse-modulated feedback control systems which can be modeled by a multiple-loop nonlinear feedback system which has a hysteresis characteristic.
Abstract: An exact method of analysis is presented for a class of pulse-modulated feedback control systems which can be modeled by a multiple-loop nonlinear feedback system The nonlinearity has a hysteresis characteristic By means of the Tsypkin-Hamel criterion, suitably modified, a set of equations is obtained, determining the switching frequency, duty cycle, and steady-state dc error Based on the graphical form of these equations, a design procedure is set forth Specific cases have been examined and peculiar phenomena are evidenced; experimental data verify both the chosen model and the suggested procedures A simplified pulse ratio modulator is also presented
9 citations