Hey folks, this is one of the first circuits I designed with intent rather than just sort of circuit bashing. The idea is that's it's essentially a buffer. Except it has a bit of an upwards compression effect, reducing dynamic range slightly but by bringing up the body rather than reducing the transients.
This is achieved by using a non-inverting gain stage where the output has a minimum gain of 1, the BAT41 has a vf of about 0.4v which limits the amplification of the stage to roughly that amount. The stage is set with a fairly low gain of 2.5 so that there is only enough limiting to bring up the body but with just a small amount of harmonic content.
The bandwidth is fairly wide, about 60hz-15khz.
It simulates really nicely, but before I breadboard I would love a bit of feedback, have I made any obvious mistakes? I'm a bit concerned about C3 and C5 providing capacitative loads to the op-amps and wonder if I should do something differently there?
This is achieved by using a non-inverting gain stage where the output has a minimum gain of 1, the BAT41 has a vf of about 0.4v which limits the amplification of the stage to roughly that amount. The stage is set with a fairly low gain of 2.5 so that there is only enough limiting to bring up the body but with just a small amount of harmonic content.
The bandwidth is fairly wide, about 60hz-15khz.
It simulates really nicely, but before I breadboard I would love a bit of feedback, have I made any obvious mistakes? I'm a bit concerned about C3 and C5 providing capacitative loads to the op-amps and wonder if I should do something differently there?
