If you are looking for quality instead of simplicity then another thing you might want to try is connecting the compensation capacitor between the output node and the base of the voltage amp. This has a great linearizing effect, especially reducing crossover distortion at high freq. It might cause oscillations because of the HF feedback over more than one stage, but you can at least try it to see it the amp remains stable. If it doesnt work, you only have to move a single capacitor. Try to keep lead lengths of the voltage amp and the output stage short. I think an output inductor like you see with many amps may help here too. Check it in simulation with the compensation cap like this, you'll see a great reduction in distortion.
But then again if you were really interested in quality then you would use a current mirror for the LTP. I'm fairly sure that would lower distortion too and is real easy to do.
Doug
But then again if you were really interested in quality then you would use a current mirror for the LTP. I'm fairly sure that would lower distortion too and is real easy to do.
Doug
OK,deleveld:
first,thanks for your detail suggestion,yes,after my modify,the simple amp already not seems a "simple",I will take you suggest and have some change with CCS or Mirror current to replace the simple circuit form,it need time,I will be back after a few days.
regards,
WINCO
😉
first,thanks for your detail suggestion,yes,after my modify,the simple amp already not seems a "simple",I will take you suggest and have some change with CCS or Mirror current to replace the simple circuit form,it need time,I will be back after a few days.
regards,
WINCO
😉
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