Numerical Analysis of Switching Processes in Class D Modulators
https://doi.org/10.31854/1813-324X-2021-7-1-71-80
Abstract
The article investigates the switching processes in class D modulators for optimal control of active devices (transistors, triodes, tetrodes, etc.) in real conditions, to reduce power losses in them and non-linear distortions of the modulator output voltage, as well as more accurate determination of the devices efficiency. The presented mathematical model takes into account the inertia of the switching processes, the duration of the rise and fall fronts of voltage and current pulses, as well as losses in switching elements.
About the Authors
V. Nikolaev
Peter the Great Saint-Petersburg Polytechnic University
Russian Federation
Russian Federation
E. Rylov
”RIO” Design Bureau, JSC
Russian Federation
Russian Federation
D. Devyatkin
Peter the Great Saint-Petersburg Polytechnic University; ”RIO” Design Bureau, JSC
Russian Federation
Russian Federation
R. Nikolaev
”RIO” Design Bureau, JSC
Russian Federation
Russian Federation
References
1. Terentyev B.P. Radio Transmitting Devices. Moscow: Svyaz Publ.; 1972. 456 p. (in Russ.)
2. Zeytlenok G.A. Radio Transmitting Devices. Moscow: Svyaz Publ.; 1969. 542 p. (in Russ.)
3. Nikolaev V.V., Rylov E.A., Devyatkin D.V., Nikolaev R.V. Qualitative analysis of switching processes in class D modulators // Vestnik svyazi. 2020;3:30‒33. (in Russ.)
4. Dmitrikov V.F., Shushpanov D.V. Stability and Electromagnetic Compatibility of Devices and Power Supply Systems. Moscow: Goryachaya linya – Telekom Publ.; 2018. 540 p. (in Russ.)
5. Dmitrikov V.F., Tonkal V.E., Ostrovsky M.Y. Theory of Key Shapers. Kiev: Naukova Dumka; 1993. 312 p. (in Russ.)
6. Kozyrev V.B, Lavrushenkov V.G, Leonov V.P. et al. Transistor Generators of Harmonic Oscillations in the Key Mode. Moscow: Radio i svyaz Publ.; 1985. 192 p. (in Russ.)
7. Aleksanyan A.A., Balyan R.Kh., Sivers M.A. et al. Powerful Transistor Devices of Increased Frequency. Leningrad: Energoatomizdat Publ.; 1989. 176 p. (in Russ.)
8. Artym A.D. Class D Amplifiers and Key Generators in Radio Communication and Broadcasting. Moscow: Svyaz Publ.; 1980. 209 p. (in Russ.)
9. Nikolaev V.V., Plotnikov M.Y., Tolstousov A.A. Theoretical study of operation modes throttle modulator class D with a load in the diode circuit // Vestnik svyazi. 2017;2:36‒41. (in Russ.)
10. Larionov A.D. Electrovacuum Electronic and Ionic Devices. Moscow: Energia Publ.; 1976. 920 p. (in Russ.)
Review
For citations:
Nikolaev V., Rylov E., Devyatkin D., Nikolaev R. Numerical Analysis of Switching Processes in Class D Modulators. Proceedings of Telecommunication Universities. 2021;7(1):71-80. (In Russ.) https://doi.org/10.31854/1813-324X-2021-7-1-71-80
Views:
642
Email this article 