I am using the tiny26 with approx 8 bit pwm resoution (25KHz PWM, 8MHz clock). I am interested in increasing the resolution up to 10 bits. Are there any tricks that have been tried or might work?. It seems that some secondary interrupt manipulating (dithering) the 8 bit pwm value settings (say at 100Khz) might give a little better (average) resolution.
any thoughts or examples of this technique?