Realization of a way of decrease in nonlinearity of modulation characteristics of the switch modulator

Accuracy of demodulation of pulse signals PWM is analyzed. The direct filtration by means of LPF and preliminary transformation PWM in APM with the subsequent filtration LPF, reducing root mean square factor of distortions of a output signal are considered. Realization of a way of transformation of modulation with use of the compound pulse converter is offered. Results of comparison on accuracy are presented in the form of experimental researches.