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Recent content by Ibtissam Aziz

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    [SOLVED] How to design specific filter ?

    Hi, Thank you for your help ! I have found several circuits wich do the job on the internet. But if you had to design from scratch how do you proceed to compute the values for each R and C ? Let's choose this design for example : (FIGA1) **broken link removed** As you can see tranfert fonction...
  2. I

    [SOLVED] How to design specific filter ?

    Well thank you you taught me something :) (I'd like to read more about this kind of filter, do you have any link,book,.. for me ?) So, if I cascade several of these specific filters and place correctly poles and zeros I should be able to get what I want -10dB/dec for example. Am I right ? And...
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    [SOLVED] How to design specific filter ?

    I mean once you compute tranfer function you can identify elements from the canonic forms **broken link removed** It is in french but you will get it. I can bode plot by hand if get one of these function. For example if I get : R1 ___ in --+|___|-----+ out |...
  4. I

    [SOLVED] How to design specific filter ?

    Yes i saw this article during my research, but how do you approximate a given curve with analog design ? I tried to compute the transfert function of this filter. But I can't formulate it to get a known form. So it must be some other mathematical tools to do it.
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    [SOLVED] How to design specific filter ?

    For example I'd like to produce pink noise from white noise and I need to make a -10dB/dec filter. I found schematics which can realise this function but I wanted to know how to design it since every filter i know is -n*20dB/dec with n >=1.
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    [SOLVED] How to design specific filter ?

    Hello, I studied filter design, I know usual canonical forms to express 1st and 2nd order filter. These forms lead us to -20/-40dB per decade. I was wondering how to design filters that aren't -20/-40..etc dB/dec. Is there other mathematical tools to do it ? I found schematics and tryed to...
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