METHOD OF MULTICHANNEL ASYNCHRONOUS PULSE-WIDTH MODULATION AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2020 - IPC H03F3/217 

FIELD: physics.

SUBSTANCE: invention relates to pulse engineering and can be used in key low-frequency amplifiers and key voltage regulators made on a number of key amplification channels. Method of multichannel asynchronous pulse-width modulation is based on comparison of signal and feedback signal on total output voltage for generation of differential voltage signal, when permissible limits of variation of which are changed in mode of self-oscillations, N-sequences of pulses are generated, modulated by duration and repetition frequency with relatively uniform phase shift for control of N-channels of key amplification, characterized by that in each i^th (i = 1...(N-1)) channel of key amplification there generated is feedback signal on output channel current, which together with differential signal (i + 1)^th channel of key amplification is summed with differential voltage signal, and the feedback signal on the output current of the N^th key gain channel is summed with the voltage difference signal together with the differential signal of 1^st key gain channel, wherein the voltage difference signal is suppressed when the feedback signal is exceeded by the output current of the channel of the given maximum level.

EFFECT: technical result consists in improvement of output signal quality parameters with improvement of reliability of operation of key power amplifiers with multichannel asynchronous pulse-width modulation.

2 cl, 6 dwg