APPLICATION OF THE DELTA-SIGMA MODULATION IN THE SWITCHING MODE POWER AMPLIFIERS
Abstract
The possibility of signal amplification in switching mode power amplifiers using a deltasigma (ΔΣ) modulation is analyzed. A comparison of the spectral structures of square waves with
ΔΣ-modulation and pulse width modulation (PWM )is provided . The estimation of non-linear distortions of the signal in both cases is given. The use of ΔΣ-modulation in power amplifiers on gallium nitride (GaN) transistors permits to rich high efficiency and minimum distortions of the amplified signal.
About the Authors
A. Ganbayev
Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича
Russian Federation
Russian Federation
V. Filin
Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича
Russian Federation
Russian Federation
References
1. Dr Andrzej Samulak. System Analyses of Class-S Power Amplifier. Germany: Erlangen, 2010.
2. Baker, Bonnie. Delta-sigma ADCs in a nutshell. EDN, 2007, pg 22.
3. Baker, Bonnie. Delta-sigma ADCs in a nutshell, part 2: the modulator. EDN, 2008, pg 24.
Review
For citations:
Ganbayev A., Filin V. APPLICATION OF THE DELTA-SIGMA MODULATION IN THE SWITCHING MODE POWER AMPLIFIERS. Proceedings of Telecommunication Universities. 2016;2(3):78-83. (In Russ.)
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