piclist 2017\09\07\164328a >
Thread: High Frequency 16 bit PWM Dimming
www.piclist.com/techref/microchip/ios.htm?key=pwm
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face BY : Kerry email (remove spam text)


You might want to rethink things a bit.  Obviously I don't know the
details of what you are doing, but what you seem to be describing is
generating a pulse 636 picoseconds wide!  Rise and fall times would
probably need to be about 64 picoseconds max.  Compare this to the Jim
Williams pulse generator.

A more practical approach might be 10 bit PWM and 6 bit A/D to set the
LED current. (Assuming you really are just dimming, not looking for
extremely narrow pulses.)

Kerry



On 9/7/2017 1:38 PM, Jim Ruxton wrote:
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Subject (change) High Frequency 16 bit PWM Dimming

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