New pulse modulator with low switching frequency

V. S. Golub

doi:10.15222/TKEA2014.2.10

V. S. Golub Scientific-Production Company VD MAIS, Kyiv, Ukraine

DOI: https://doi.org/10.15222/TKEA2014.2.10

Keywords: quantization, continuous readouts, analog-pulse converter, pulse modulator, switching frequency, class D amplifier

Abstract

The author presents an integrating pulse modulator (analogue signal converter) with the pulse frequency and duration modulation similar to sigma-delta modulation (with low switching frequency), without quantization. The modulator is characterized by the absence of the quantization noise inherent in sigma-delta modulator, and a low switching frequency, unlike the pulse-frequency modulator. The modulator is recommended, in particular, to convert signals at the input of the class D power amplifier.

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