June 2006
Beginner
488 pages
13h 2m
English
The distortion performance of an amplifier is determined not only by open loop linearity, but also the negative feedback factor applied when the loop is closed. In most practical circumstances doubling the NFB factor halves the distortion. To date, this series has focused on basic circuit linearity. I have assumed that open loop gain falls at 6 dB/octave due to a single dominant pole, with the amount of NFB permissible at HF being set by the demands of HF stability. Because of this, the distortion residuals from a ‘blameless’ amplifier are comprised almost entirely of crossover artifacts due to their high frequency content. Audio amplifiers using more advanced ...
Read now
Unlock full access