william_rx
New Member
i am doing a duty extractor of PWM signal for LED driver. The input PWM duty varies from 1~100% and input frequency varies also , from 200~10Khz. and i need to come up with an architecture to extract the duty of this input, and apply it to a new frequency,say 200~ 20KHz(external tunable). so, any idea of this architecture(expecially the duty extraction) is welcomed!
since i am doing on chip cmos design,so the size of circuit should not be bulky and analog circuit is prefered for their compact zise.
since i am doing on chip cmos design,so the size of circuit should not be bulky and analog circuit is prefered for their compact zise.