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PSoC 5, 3 & 1

Anonymous
Not applicable

 hi to all,

   

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

   

thanks

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1 Solution
Anonymous
Not applicable

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


   

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

View solution in original post

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7 Replies
Anonymous
Not applicable

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


   

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

View solution in original post

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Anonymous
Not applicable

 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

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Anonymous
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Anonymous
Not applicable

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

Anonymous
Not applicable

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

Anonymous
Not applicable

 hi to all,

   

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

   

thanks

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ETRO_SSN583
Esteemed Contributor

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.