Chapter 40Cool audio power
(Electronics World, August 1999)
Intended title: Power Amplifiers and Power Dissipation
Once again, a title to make one cringe. I’m not saying my intended title was a masterpiece of creativity, but it did at least give you some inkling as to what the article was about. The idea for this article took shape several years before it appeared.
I have always thought that some kinds of information cry out to be presented graphically. A case in point is the ultimate destination of the power that an amplifier draws from its supply. Some goes usefully into the load, some is dissipated in the power semiconductors, and a little is lost in drivers, emitter resistors, and so on. All these quantities vary strongly with the percentage ...
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