AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

A High-Efficiency Audio Power Amplifier

A compact audio amplifier with high power and low distortion has been developed. The supply voltage for the class-B output stage of the amplifier is varied with the input signal so that the voltage applied to the active output transistor is held small and constant, appreciably reducing transistor dissipation. Total power dissipation is reduced to one-half that of the conventional class-B amplifier, the size of the heat sink to one-fifth, and overall weight to one-quarter. The amplifier is efficient, shows a distortion of 0.01% at 20-kHz maximum output, and a signal-to-noise ratio of 110 dB (IHF-A network).

Authors:
Affiliation:
JAES Volume 31 Issue 6 pp. 430-436; June 1983
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society