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

Dan Snazelle subjectivity at hotmail.com
Wed May 20 03:19:45 CEST 2009

it sounds interesting
i am assuming you would use a comparator set up to flip on Switch from A to B?

so you could have the input go into a comparator with a threshold set by a reference or a trimmer...that would then go high or low which would trip a switch to feed the input into either AMP a which could be set for one set of gain and offset OR amp B which could have another?

sounds cool.

> Date: Tue, 19 May 2009 17:56:23 -0700
> Subject: Re: [sdiy] converting a 10v p to p to a 0-5 volt signal
> From: tim.parkhurst at gmail.com
> To: subjectivity at hotmail.com
> CC: synth-diy at dropmix.xs4all.nl
> On Tue, May 19, 2009 at 5:30 PM, Dan Snazelle  wrote:
>> 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.
> Hi Dan,
> Don't know if this is exactly what you're looking for, but I've been
> thinking of an input stage that will automatically sense and switch
> gain & offset to compensate for the differences between a 0 to 10V
> signal (like from an EG) and a -5 to +5V signal (like from an LFO).
> Essentially, the circuit would simply monitor the input and switch to
> monopolar mode (0 to +10V) if the input goes above 6V, or switch to
> bipolar mode (-5 to +5V) if the signal goes below -1V. The switching
> thresholds could maybe be tweaked a bit, but I think the basic
> principle is sound. I haven't designed any of this, so I don't know if
> the extra complexity would be worth it or not. Any thoughts?
> Tim (monopolar mode today) Servo
> --
> "Sire, the church of God is an anvil that has worn out many hammers."
> - H.L. Hastings

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