Is this a typical frequency for this "typical" DC motor controllers? =20
Haven't found much info on this other than hobby-type DC motor=20
controllers with max frequencies in the 16-21Khz range.

BTW, why do you specifically say from the *CMOS* output?

Cheers,
-Neil.



On 8/10/2012 12:57 AM, David Duffy (AVD) wrote:
> Maybe apply a low-ish frequency (a few 100 Hz) to the opto (via a 1K=20
> resistor) from the CMOS output of the function generator and vary the=20
> duty cycle to see what happens? David...=20

--=20
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