Accurate non linear models of valve amplifiers including output transformers

摘要

Available commercial network analysis programs are now powerful enough to look at sophisticated modelizations of complete valve amplifiers including non linear components such as valves and output transformers. Objectives of such accurate non linear models are evident. They allow for the evaluation, with a high degree of realism, of global amplifier performances and their distortion, reducing, as a result, major risks at the development stage of any amplifier project. It is the intention of this paper to show how such sophisticated models can be developed and which kind of results and information can be extracted from them, by applying these sophisticated modelizations on a real amplifier, as an illustrative example.