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Accuracy of PWM-level

tomas2
Associate II
Posted on June 14, 2006 at 16:27

Accuracy of PWM-level

1 REPLY 1
tomas2
Associate II
Posted on June 14, 2006 at 16:27

Hi all,

In ST7FLITE29 a PWM step are defined by VDD/1024.

At 5VDD is means approx 4.9mV/step.

I want to produce ( and repeated in series of productionboards ) a very stable PWM-level not influenced by the tolerance of the voltage regulator supplying VDD ( voltage regulator accuracy normally around +/- 5% ).

The goal is around +/- 0.5%.

Have anyone a smart software idea ?

BR

tomasf