Switching-mode audio amplifier based on a ΔΣ A/D converter

• Autorzy: Jabłoński Jarosław , Lewandowski Marcin

Identyfikatory

DOI

10.24425/ijet.2024.149545

• Języki publikacji: EN

Abstrakty

EN

The article describes the design and implementation of a modular hardware platform intended for testing and measuring various configurations of switching-mode audio amplifiers based on sigma-delta modulation. Two single-channel power amplifier modules were designed and manufactured, along with a stereophonic module serving as the basic source of modulated signals. Additionally, measurements were conducted on the fundamental parameters of the completed amplifier, such as harmonic distortion level, dynamic range, and output power. The developed platform serves as a foundation for modifications and further advancement in the technology of building switching-mode audio amplifiers.

Słowa kluczowe

EN

acoustic amplifier; switching-mode amplifier; digital amplifier; modulation ΔΣ; class D

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2024
• Tom: Vol. 70, No. 2
• Strony: 301--306
• Opis fizyczny: Bibliogr. 6 poz., il., rys., wykr.

Twórcy

autor

Jabłoński Jarosław

• HEM Ltd

autor

Lewandowski Marcin

• Warsaw University of Technology, Poland

Bibliografia

• [1] P. Shanthi, R. Schreier, and G. C. Temes. “Understanding delta-sigma data converters”. John Wiley & Sons, 2017. https://doi.org/10.1002/9781119258308.
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• [3] P. Green, “Designing with power MOSFETS”, Infineon, 2022. https://www.infineon.com/
• [4] “Data sheet of the EiceDRIVER 2Edi chip series”, Infineon, rev. 2.7, 2021. https://www.infineon.com/
• [5] “Data sheet of the PXN010-30QL transistor”, Nexperia, 2023. https://www.nexperia.com/products/mosfets/power-mosfets/PXN010-30QL.html
• [6] Y. B. Quek, “Class-D LC filter design”, Texas Instruments, SLOA119B, 2006.