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To vary duty cycle of pwm according to adc value

Question asked by bharti sharma on Sep 8, 2017

Hello all, 

My question is how to read ADC  value ( AC and DC (voltage and current ) ) If I want to generate 20khz signal and vary duty cycle (0-100%) of PWM according to ADC value   how it can do and how to reload any value of  PWM (at instant of time) Please guide me with an example