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How to know the overall duty cycle of PWM?

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aborigini

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Hi all,

I am designing this PWM using comparator and triangular carrier.

I am a bit confused about the duty cycle. I roughly know it is the ratio of high and low over 1 period. But, how do I know the overall duty cycle? What is the meaning of zero-input duty cycle?

Thank you in advance.
 

Re: pwm- duty cycle

hi
you know all we know but the fun is how to employ your knowlwdge.how you implement it practically .you canuse a pic micro.

regards
 

Re: pwm- duty cycle

Can i have a working circuit!!!

With 50% duty cycle.... Buck converter...
 

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