Title :
An original approach for the design of a Class D power switching amplifier-an audio application
Author :
Dondon, Ph ; Micouleau, J.M.
Author_Institution :
ENSERB, Talence, France
Abstract :
The Class D amplifier is not well known in audio applications. Its excellent power ratio (greater than 90%) is the most important advantage. The MOS transistors switching power stage is able to drive a useful power up to 100 W to the loudspeaker. However, designing such an amplifier is more difficult than designing a Classical Class A or AB power amplifier. The distortion level is also slightly higher than in AB structures. A method to design a Class D power switching amplifier as easily as possible is presented here. The experimental results are given to illustrate the design method
Keywords :
audio-frequency amplifiers; electric distortion; power amplifiers; 100 W; audio amplifiers; audio application; class D power switching amplifier; distortion level; power ratio; switching power stage; Bridge circuits; Filters; Frequency; Power amplifiers; Power supplies; Power transistors; Pulse amplifiers; Pulse width modulation; Space vector pulse width modulation; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.812248
