In a push-pull class AB amplifier, I want to reduce the crossover distortion of the output (called also zero crossing distortion).
I used the following solutions:
1) Use a Vbe multiplier like that:
2) Using a CFP output stage:
In a class AB analog amplifier the polarization cannot be infinite, and even if it were, it would never eliminate the crossover distortion, it would only reduce it to a certain point.
As we have seen and demonstrated several times over time, the CFP type output stage offers numerous advantages, including better thermal stability and better linearity than the other output stages.
However, I would like to experimentally try to make the circuit further linear in the crossing area, trying to reduce the odd harmonics even more.
But honestly I don't know what to do, I tried to read all the books that talk about amplifier constructions (Cordell, Self, Crowhurst, Duncan, etc) but I didn't find anything more complex to apply.
Do you have any ideas, or do you think of any particular amplifier that introduces an efficient method to reduce crossover distortion?
I used the following solutions:
1) Use a Vbe multiplier like that:

2) Using a CFP output stage:

In a class AB analog amplifier the polarization cannot be infinite, and even if it were, it would never eliminate the crossover distortion, it would only reduce it to a certain point.
As we have seen and demonstrated several times over time, the CFP type output stage offers numerous advantages, including better thermal stability and better linearity than the other output stages.
However, I would like to experimentally try to make the circuit further linear in the crossing area, trying to reduce the odd harmonics even more.
But honestly I don't know what to do, I tried to read all the books that talk about amplifier constructions (Cordell, Self, Crowhurst, Duncan, etc) but I didn't find anything more complex to apply.
Do you have any ideas, or do you think of any particular amplifier that introduces an efficient method to reduce crossover distortion?