Conductive EMI of class D audio amplifiers prediction system

Author

Onikienko, Y. ; Pilinsky, V. ; Rodionova, M.

Author_Institution

Fac. of Electron., NTUU “KPI”, Kiev, Ukraine

fYear

2015

fDate

21-24 April 2015

Firstpage

437

Lastpage

440

Abstract

Prediction system of electromagnetic interferences (EMI), generated by the audio class D amplifiers, is considered. It´s based on specialized software, designated to calculate and analyze of amplifier´s EMI levels at the design stage. The mathematical model of class D amplifier as a source of conducted EMI is developed. The method of measurement of stray capacitance between amplifier´s output terminals and the “ground” are suggested. Input information for calculation may be obtained from the reference data or by measurements. The System of EMI Prediction provides sufficient accuracy for preliminary EMI levels assessments.

Keywords

audio-frequency amplifiers; electromagnetic interference; class-D audio amplifiers prediction system; conductive EMI; electromagnetic interferences; stray capacitance measurement; Capacitance; Computational modeling; Electromagnetic compatibility; Electromagnetic interference; Integrated circuit modeling; Mathematical model; Resistors; EMI prediction; EMI simulation; class D amplifier; eelectromagnetic compatibility;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Nanotechnology (ELNANO), 2015 IEEE 35th International Conference on

Conference_Location

Kiev

Type

conf

DOI

10.1109/ELNANO.2015.7146925

Filename

7146925