Comparative analysis of the impedances of key radio engineering devices with PWM based on a linear model and a closed loop method
- 1,3 The Bonch-Bruevich St Petersburg State University of Telecommunications (St Petersburg, Russian Federation)
- 2 Tashkent University of Information Technologies named after Muhammad al-Khwarizmi (Tashkent, Uzbekistan)
- 4 The Bonch-Bruevich St Petersburg State University of Telecommunications (St Petersburg, Russian Federation); North-Western State Medical University named after I.I. Mechnikov (St Petersburg, Russian Federation)
Abstract
The problem of comparative analysis of the impedances of switching mode devices with negative feedback by two methods is considered. The use of a linear injection model is justified, on the basis of which analytical expressions of impedances in Laplace form are obtained. The results of numerical modeling and spectral analysis of processes in a closed dynamic system with PWM are presented, confirming the correctness of the analytical model in the frequency range not exceeding half the clock frequency.
- Received
- 29.07.2024
- Approved after review
- 12.07.2024
- Accepted
- 29.08.2024
How to cite
Филин В.А., Байжонова Л.Э., Головин А.Н., Юрова В.А. Сравнительный анализ импедансов ключевых радиотехнических устройств с широтно-импульсной модуляцией на основе линейной модели и метода замкнутого контура // Радиотехника. 2024. № 9. С. 67–77. DOI: https://doi.org/10.18127/j00338486-202409-06
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