A new method for harmonic distortion analysis in class-AB stages

被引：6
|
作者：
Giustolisi, G [1 ]
Palumbo, G [1 ]
机构：
[1] Univ Catania, Fac Ingn, Dipartimento Ingn Elett Elettron & Sistemi, I-95125 Catania, Italy
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 2003年 / 50卷 / 12期
关键词：
amplifier distortion; analog circuits; harmonic analysis; harmonic distortion (HD); nonlinear circuits; operational amplifiers;
D O I：
10.1109/TCSI.2003.819810
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this brief, a new method for analytically evaluating the harmonic distortion (HD) in class-AB stages is introduced. It is based on modeling each push-pull device in the stage with a different third-order polynomial. The coefficients of these polynomials are then evaluated by straightforward computations or by pencil-and-paper analysis on the transcharacteristic of the stage. The resulting theory was validated by simulations and is able to predict the HD behavior of a class-AB stage over a wide range of input values. An example of the use of the theory for pencil-and-paper analysis is also given.
引用
收藏
页码：1559 / 1563
页数：5
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