The url : - http://www.ecircuitcenter.com/Circuits_Audio_Amp/Advanced_Amplifier/Advanced_Audio_Amplifier.htm describes the workings of an advanced op amp.
I have been confused (not for the first time) about several of the points made in the article. Particularly where it says that the current mirror "doubles the gain of the differential amplifier" from Q8 collector to Q3 base.
I get that the current mirror duplicates the gain from Q1 but struggle to see that it doubles it.
Can some kind person enlighten me here?
I have been confused (not for the first time) about several of the points made in the article. Particularly where it says that the current mirror "doubles the gain of the differential amplifier" from Q8 collector to Q3 base.
I get that the current mirror duplicates the gain from Q1 but struggle to see that it doubles it.
Can some kind person enlighten me here?