DocumentCode :
1556958
Title :
A design of a 10-W single-chip class D audio amplifier with very high efficiency using CMOS technology
Author :
Choi, Soo-chang ; Lee, Jun-woo ; Jin, Woo-kang ; So, Jae-hwan ; Kim, Suki
Author_Institution :
Dept. of Electron. Eng., Korea Univ., Seoul, South Korea
Volume :
45
Issue :
3
fYear :
1999
fDate :
8/1/1999 12:00:00 AM
Firstpage :
465
Lastpage :
473
Abstract :
A one-chip integrated circuit (IC) of a 10-W class-D audio power amplifier with very high efficiency using CMOS technology is presented. A mixture of a class D output stage and a bridge tied load (BTL) is the main topology of the proposed amplifier. The new 10-W IC audio power amplifier operates at 12 V with the efficiency of more than 90% and the total harmonic distortion (THD) of 0.1%. The amplifier is implemented in a 4-μm double-metal, single-poly CMOS technology that provides with relatively high voltage (12 V) MOSFETs
Keywords :
CMOS integrated circuits; audio-frequency amplifiers; harmonic distortion; network topology; power amplifiers; 10 W; 12 V; 4 micron; 92 percent; IC audio power amplifier; MOSFET; THD; amplifier topology; bridge tied load; class D output stage; double-metal single-poly CMOS technology; high voltage; single-chip class D audio amplifier; total harmonic distortion; very high efficiency; Bridge circuits; CMOS integrated circuits; CMOS technology; Circuit topology; High power amplifiers; Integrated circuit technology; MOSFETs; Power amplifiers; Total harmonic distortion; Voltage;
fLanguage :
English
Journal_Title :
Consumer Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0098-3063
Type :
jour
DOI :
10.1109/30.793526
Filename :
793526
Link To Document :
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