How do you weigh the feedback?very low feedback weight
btw, Is this circuit named "Qubert" as in the thread title, or "Qbert" as shown on the picture?
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i prefer Qubert
if you simulate the circuit
measure the open loop gain (without NFB)
then connect NFB resistor (2K2)
measure the closed loop gain
the difference is the weight
now the gain setted is more then natural ---> 1:100 means 40dB
so the weight result 2 or 3dB
that sounds much better then zero feedback
if you simulate the circuit
measure the open loop gain (without NFB)
then connect NFB resistor (2K2)
measure the closed loop gain
the difference is the weight
now the gain setted is more then natural ---> 1:100 means 40dB
so the weight result 2 or 3dB
that sounds much better then zero feedback
Member
Joined 2009
Paid Member
as you know
my line design is low feedback system
And diamond buffers. I like your alternative approach to circuit design.
Thanks mcd99uk
about speaker dependent (Bigun)
you can see my patent about engine's compensation system
Amplificatori bilanciati, il meglio dell'audio.
about speaker dependent (Bigun)
you can see my patent about engine's compensation system
Amplificatori bilanciati, il meglio dell'audio.
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