[sdiy] converting a 10v p to p to a 0-5 volt signal

[stew]

Hi Dan,

As well as using the methods others have mentioned to get your signal in the correct range with correct offsets, you might also want to add limiting diodes and an led clip indicator. 

Regards,
Stewart.



> Dan Snazelle <subjectivity at hotmail.com> wrote:
> 
> 
> they are NOT arbitrary when you are feeding something that could be 
> destroyed by too high a voltage swing or at best distort like mad! :)
> 
> this is why i want to be darn sure i am getting my voltages offset into 
> a tiny range. oddly, my modular seems to have 3 different voltage swings 
> among the 20 modules i have built.
> 
> but MOST of em are +/- 5volts.
> 
> 
> 
> 
> > This is a problem I'll be facing eventually, once my system's fully 
> built (level shifting and what not), what with various modules from 
> different manufactures accepting different ranges of modulations 
> voltages.
> > 
> > I know how to work things to suit their needs, but that aside, these 
> standards are pretty arbitrary for the most part right?
> > 
> > 
> > _Kyle
> > 
> > --- On Tue, 5/19/09, Jason Proctor  wrote:
> > 
> >> From: Jason Proctor 
> >> Subject: Re: [sdiy] converting a 10v p to p to a 0-5 volt signal
> >> To: synth-diy at dropmix.xs4all.nl
> >> Date: Tuesday, May 19, 2009, 5:49 PM
> >> i did exactly this for my Arduino
> >> module. it bidirectionally 
> >> interfaces a +/-5v signal to the micro's 0-5v range.
> >> 
> >> turned out to be pretty easy - on the way in, chop the
> >> signal in 
> >> half, and bias with +2.5v. then reinvert. on the way out,
> >> do the 
> >> opposite. 1 dual opamp each way.
> >> 
> >> lmk if you want the details.
> >> 
> >> (i should also thank Tom Wiltshire here for his help
> >> getting me off 
> >> the ground with this stuff.)
> >> 
> >> 
> >>>tonight i was looking at my scope
> >>>
> >>>Checking the input into a circuit that was only able to
> >> take 0-5 volts
> >>>
> >>>Sure enough, the signal was between 0 and 5 but the
> >> sawtooth was clipped.
> >>>
> >>>So i am looking for a input block that can take either
> >>>5vp to p or 10v p to p (or any synth signal)
> >>>and spit it out as a 0-5 signal without squaring the
> >> top.
> >>>
> >>>
> >>>anyone know of a good circuit for this?
> >>>
> >>>thanks
> >>>
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