[sdiy] Ofsetting LFO output

Seb Francis seb at burnit.co.uk
Wed Jun 1 14:25:39 CEST 2005


something like the attached circuit should do it ..

it's inverting, so -5V in will give +10V out and +5V in will give 0V 
out, but this shouldn't matter for an LFO.

R3+R4 are not 'real' resistor values, but anything in the same ratio 
will be fine .. even better would be to add a trimmer in series with one 
of these to get exactly the right offset

seb




Mikael Mørup wrote:

>Hi list
>
>I have an LFO that puts out a -5V to +5V peak to peak
>squarewave. For clocking another module i need a 0V to 10V
>squarewave. is it possible to make a small circuit that
>would "ofset" or whatever it's called, the LFO output ?
>
>My modules are running on +-12V.
>
>In my simple mind i am thinking something like an Opamp with
>and ofset, but i don't know excatly how to design such a
>thing.
>
>Any suggestions?
>
>A little schematic would be very nice :-)
>
>Thanks
>
>Mikael
>
>
>  
>
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