I have a microcontroller and it generates around 1KHz the minmum frequency to 200kHz with variable duty cycle from 0 to 100%. But this frequency is sometimes too high and i want to put at the output a frequency divider (or many frequency dividers) to reach 1Hz the minimum frequency (or around 1Hz). But, is there technique/do you have a scheme of a frequency divider (prescaler) which does this job well? (i mean to maintain the duty cycle of the input frequency). Thank you!