Do someone have an example schematic for an open loop gain cell?
i would expect there are some in the pearl, BZLS, SOZ and other articles at passdiy.
Bricolo said:In what case can we go for open loop.............
In linear audio amps? NEVER!
till said:nonlinear gainstage
I just simulated the "input stage" with 1 fet
why is it so unlinear?
till said:i simulated it as drawn, and it looks pretty linear.
the title was aimed on the ot posting above.
That's odd.
I use simetrix too, and simulated your schematic (the whole schematic)
Placing a probe on the output, a transient analysis gives 0.04% distortion
same analysis, but the probe at the output of the fets: 5% distortion!
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- In what case can we go for open loop, and when should we use feedback?