Ask yourself what happens if both inputs have the same signal (frequency an=
d=20
phase). In that case you'll get no output whatsoever.

-- Bob Ammerman
RAm Systems

----- Original Message -----=20
From: "Carey Fisher" <careyfisher@ncsradio.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Thursday, July 19, 2012 2:39 PM
Subject: [EE] BTL Circuit


> Is there anything wrong with the attached conceptual circuit?  Basically,=
=20
> I
> want to mix two different audio signal and have them come out one speaker=
..
> I know I could do an op-amp mixer + power amp but I'd like to know if=20
> there
> is anything fundamentally wrong with mixing the two signals in the stereo
> power amp circuit using a BTL arrangement where one speaker lead is tied=
=20
> to
> one amp output and the other speaker lead is tied to the other amp's=20
> output.
> Thanks,
> --=20
> Carey Fisher
> [image: Inline image 1]
>


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