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Audio Amp

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catcat

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I could never find good explenations, schematic examples, and the ups and downs of class a, ab, ab1, ab2, c, d, e apmlifiers.
 
Where have you looked? I've seen many good explanations.
 
I google searched and looked through at least 30 pages and nothing.
 
In Google I searched for Class A Amplifier and got 1.2 million hits and the 1st page is excellent.
 
I only got hits for class a and some not-so-helpful ones for b.
 
catcat said:
They dont give schematic examples of them.
The class-A amplifier is too simple to show. The article assumes that the reader knows a little about a basic transistor class-A amplifier.
The article has an example circuit of a Practical Class-AB Power Amplifier, like is used in many opamps and audio ICs.

A class-C amplifier is full of distortion so is never used for audio, just for RF where there is a tuned circuit and filters to remove the interfering distortion, and you must know RF to use it.

A class-D or class-H amplifier is too complicated to show in an article that describes them. You can find ICs that do it.
 
I know how a basic class a works. But for the others you need to identify and/or build them, you need to see the component placement and how they look on schematic.
 
Last edited:
Catcat

Try this link my.integritynet.com.au/purdic/rf_amp.htm if you haven't already.

AllVol
 
audioguru said:
A class-C amplifier is full of distortion so is never used for audio, just for RF where there is a tuned circuit and filters to remove the interfering distortion, and you must know RF to use it.

I actually needed an rf amp too.
 
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