On 5 Aug 2016 at 9:28, James Wages wrote:
<snip>
> Now let's discuss the PROBLEM.  I use the NCO to feed the CWG
> normally because (1) the CWG creates two in-synch output waveforms
> and (2) because the CWG allows me to set deadband in the
> complementary waveform, thus avoiding short circuits in the
> H-BRIDGE.  BUT, the PROBLEM is that when I feed CWG with the CLC
> output (I need to use CLC to AND my original NCO output with 32kHz
> for volume reduction)

Wait. Having first produced your desired complimentary waveforms using the =
NCO=20
and CWG, surely then the *next* thing you want to do is add in the PWM sign=
al for=20
volume control, not before? i.e. Feed the CLC with the CWG output, not feed=
 the=20
CWG with the CLC output. Unless I've got the wrong end of the stick that sh=
ould be=20
quite feasible with the CLC.

If not, perhaps it could be done externally with a diode and resistor per c=
hannel=20
(think PWM low pulls waveform low, PWM high =3D no change).



--=20
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