“Class” is in session. This discussion of electronic amplifier circuits offers an overview ... It worked for classes A, B, and C. For class AB, it made a certain kind of sense.

While Class A and Class A/B circuits are very closely related, those of the Class D persuasion are rather different. The ‘D’ doesn’t stand for ‘Digital’, in fact, none of the letters used to identify ...

Editor's note: This multi-part article is an expanded version of the article by the same title published in the EE Times print edition. The Class B topology eliminates the dc bias current and ...