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input capture

input capture

Forum : dsPIC Peripherals

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ELMAY
Hi Lubin!



Do you have any examples on how operate a 220V 50hz signal to detect the passage through zero in order to synchronize the PWM signals

i try with IC ''input capture" but no result



Can you help?





ELMAY
LubinKerhuel

Re: input capture

Hi Elmay,



Is the problem to get an input on the 220V signal or to synchronize the PWM signal ?



Getting 220V signal should be done using an antenna for example.

About synchronizing PWM signals, you may change the PWM period.



I have no example about this specific problem.



Lubin
ELMAY

Re: input capture

Hi Lubin,

I want to detect the passage by zero of use sinewave signal with input capture if you like it you can give me an example of use of any type IC and output of this block?



thanks



Elmay