A method is proposed for characterizing nonlinear distortion in feedback amplifiers by means of two generators at the input - one voltage and one current. These generators are the negatives of the voltage and current antidistortion which, added to voltage-source and current-source input, respectively, would reduce the output distortion to zero. Their values can be calculated easily from known variations of small-signal parameters such as transistor gm, ß, and the capacitances. The distortion-to-signal ratio is given by formulas similar to the offset-to-signal ratio or noise-to-signal ratio, and depends only on the distortion generators, the signal source, and the source impedance. The method correctly predicts harmonic and intermodulation distortion for practical amplifiers. It points toward techniques for reducing distortion, and it explains certain experimental results which hitherto have been problematical.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
