You dont often see this way of doing output stage.
I have seen it used in one MOSFET power amp.
I like to build this preamp, when I have ordered transistors.
Will be interesting to see if is stable - or need some compensation.
I am fully convinced it will work well.
What do you think?
I have seen it used in one MOSFET power amp.
I like to build this preamp, when I have ordered transistors.
Will be interesting to see if is stable - or need some compensation.
I am fully convinced it will work well.
What do you think?
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Using feedback, it is an OK start if you stabilize the MOSFETs with source resistors.
With no global feedback, I think it should be hard to have it work.
With no global feedback, I think it should be hard to have it work.
Schematics is incomplete... missing global feedback... (with adequate frequency compensation) missing input circuitry... (with adequate bias) ... ...
If I'm not mistaken, that topology is utilized the 'Constellation' brand of big money amplification components.
See https://leachlegacy.ece.gatech.edu/papers/wbpreamp/feb77article.pdf for a version of this topology used in a Leach RIAA preamplifier design.
This topic has been dealt with several times at this forum, eg
Design Rules for a Push-Pull Quasi-Complementary output stage
Design Rules for a Push-Pull Quasi-Complementary output stage
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