Title :
About the demodulation of PWM-signals with applications to audio amplifiers
Author :
Bresch, Helmut ; Streitenberger, Martin ; Mathis, Wolfgang
Author_Institution :
Otto-von-Guericke Univ., Magdeburg, Germany
Abstract :
In this paper, the reason for the relatively high distortion level of conventional class-D audio amplifiers is discussed. It is pointed out that the classical approach is insufficient for high performance applications. Therefore the importance of the matching between modulation and demodulation is demonstrated by simulation
Keywords :
audio-frequency amplifiers; demodulation; electric distortion; pulse width modulation; PWM signal; class-D audio amplifier; demodulation; distortion; simulation; Broadband amplifiers; Demodulation; Frequency; Low pass filters; Power amplifiers; Pulse amplifiers; Pulse width modulation; Sampling methods; Signal sampling; Space vector pulse width modulation;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704255
