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 Forum index » DIY Hardware and Software
How to make 5V vco output go 5V(+)(-)
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isak



Joined: Dec 13, 2009
Posts: 725
Location: Israel
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PostPosted: Mon Sep 16, 2013 11:42 pm    Post subject:  How to make 5V vco output go 5V(+)(-) Reply with quote  Mark this post and the followings unread

Hi guys.

I think the head line says it all Smile
For example the ody vco only output + , how can I make go + and -?
My goal is to be able to connect the vco to the Yusynth saw animator, but the saw animator know to get +/-
http://yusynth.net/Modular/EN/SAWANIM/index.html


cheers.

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JingleJoe



Joined: Nov 10, 2011
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PostPosted: Tue Sep 17, 2013 12:58 am    Post subject: Reply with quote  Mark this post and the followings unread

the simplest way I can think of is a passive high pass filter Smile

Posted Image, might have been reduced in size. Click Image to view fullscreen.

It'll pass AC but not DC, I'd suggest C and R values of 1uF and 100k;

cutoff frequency = 1/(2piRC) = 1/(6.283*100000*0.000001) = 1.592Hz

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isak



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PostPosted: Tue Sep 17, 2013 1:03 am    Post subject: Reply with quote  Mark this post and the followings unread

cheers Smile
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