Topic 36: Class-A Amplifier Output Power and Efficiency

In this video we analyze a typical small-signal, class-A amplifier and derive equations for maximum peak and RMS output power, transistor power dissipation and overall amplifier efficiency. We observe that unlike most home and car audio amplifiers, the transistor in a class-A amplifier actually runs coolest when the amplifier is delivering maximum output power to the load.

[@davidluther3955]

GOOD LECTURE! DO THINK IT WOULD WORK BETTER IF YOU TOOK ONE HALF OF ICQ AND,ONE HALF OF VCE AND,SET THAT FOR THE Q POINT?

[@Electronics4Guitar]

@@davidluther3955 that would work if there was no load (or a very high resistance load). Then the AC and DC load lines would be identical. Maximum output voltage swing occurs when the Q point is centered on the AC load line, which is always steeper than the DC load line.

[@gfdgde8367]

Please sir a nide example solvig for power amplifier all classes
And thank you

[@Electronics4Guitar]

Stay tuned. I’ll get to all of them eventually 👍🏻