Title :
High efficiency and high fidelity analogue/digital switching mixed mode amplifier
Author :
Jung, N.S. ; Jeong, J.H. ; Cho, G.-H.
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
4/30/1998 12:00:00 AM
Abstract :
An audio amplifier which combines the advantages of analogue and digital amplifiers is proposed. The high fidelity of an analogue amplifier and high efficiency of a digital amplifier are simultaneously achieved in one system. Experimental results show that the proposed amplifier has 0.005% total harmonic distortion and 90% power efficiency at output =50 W
Keywords :
audio-frequency amplifiers; harmonic distortion; mixed analogue-digital integrated circuits; 50 W; 90 percent; analogue/digital switching mixed mode amplifier; audio amplifier; efficiency; fidelity; power efficiency; total harmonic distortion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980595
