DC offset null for non inverted chip

[tiltedhalo]

Just a quick one to run by everbody, a DC offset nulling circuit for the chip amp purist or for anybody wanting to parellel a few together with out servo's. No feed back cap all DC coupled, will it work?? I havent built it yet, but I am going to throw one together tomorrow. .

[tiltedhalo]

Nobody? nothing?? a circuit to null out DC offset in a non-inverted configuration, with no NFB cap and DC coupled, no comments from any body

[Nicks]

i will follow this thread with great interest! would you mind explaining a bit more how it all works?

BR

nicks

[tiltedhalo]

I built the circuit and it works needs some tinkering, but works.
I just put together a BPA schematic that I will prototype as soon as I return from vacation.
This circuit will remove DC offset without effecting NFB loop.
Will provide better thermal managment, due to less interaction of DC currents.
Will provide error correction useing the sense leads of the DRV134 increasing overall sensitivity and frequency response.
Should output well over 200W.
heres the schematic.........

The Talon

[tiltedhalo]

PS did I mention you dont need to have .1% tolerance resistors......

[davidlzimmer]

I suspect this will be a classic thread. Watching for comments from the more knowledgable.


tiltedhalo is the kind that makes this forum great!

Thanks!