Phase splitter

154

02:26:36

With push pull output stage

published 7 years ago

hurz

7 years ago

probably you noticed the bad lower frequency corner. This is because you are riding on the base emitter path of fitst and second lower transistor one plus 1Ohm to ground, with a very low and very unlinear impedance. Thats the reason you get gain, which is uncommon for phase splitter plus emitter follower. To lower the corner frequency you would need extreme big capacitors. Or a higher impedance, which shifts to a lower corner for the price of gain, a 1kOhm plus another 1k into both bases of this path will help a lot. Input amplitude must be increase for the same output peak voltage, but THD will also get better.

crake

7 years ago

Thanks for the help. I made another one with you recommendations.

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