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peak detector
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peak detector

vgy posted on 06 Nov 2012 2:22 AM PST
Top Contributor
133 Forum Posts

 hi to all,

i have gone through peak detector of AN60321, but unable to find that project. can any body post that link.

thanks




Re: peak detector

QuickSilver posted on 06 Nov 2012 03:09 AM PST
Senior Member
19 Forum Posts

It is there on the app note page:http://www.cypress.com/?rID=41001


Or click this link: www.cypress.com/?docID=38359



Re: peak detector

vgy posted on 06 Nov 2012 07:29 AM PST
Top Contributor
133 Forum Posts

 hi to all,

   how to find a peak to peak value of any arbitary wave form (say square wave) , in which we have to read positive peak and negative peak. Here i am attaching bundle, can any sugest how to use it,

thanks



Re: peak detector

vgy posted on 07 Nov 2012 03:57 AM PST
Top Contributor
133 Forum Posts


Re: peak detector

PSoC Rocks posted on 08 Nov 2012 01:11 AM PST
Top Contributor
128 Forum Posts

Try attaching the project from IE if you are using Chrome for uploading any attachments.



Re: peak detector

PSoC Rocks posted on 08 Nov 2012 01:14 AM PST
Top Contributor
128 Forum Posts

 Try inverting the inputs of comparator - You would get a -ve peak detector. (above Vssa)



Re: peak detector

vgy posted on 18 Nov 2012 04:26 AM PST
Top Contributor
133 Forum Posts

 hi to all,

    after using the MAaximum_peak_detector component , voltages levels are scaling down , what could be the reason for this?

thanks



Re: peak detector

danaaknight posted on 18 Nov 2012 03:03 PM PST
Top Contributor
1773 Forum Posts

The peak detector is based on a S/H module, in turn, being an analog solution, uses

charge on a capacitor as its memory. PSOC 3 datasheet for S/H does not specify the droop

rate, which is leakage caused. Q = C x V, I = C dV/dT. So if you have a leakage of 1 uA, working

with 5 pF, you can compute how much it will droop in your timeframe of concern. The way around this

is a servo loop with a DAC, or easier, A/D the peak and hold that in memory that does not forget.

 

Regards, Dana.






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