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General Category => Your projects => Topic started by: marquee on June 18, 2014, 19:18:18 PM

Title: triangle wave adjustment
Post by: marquee on June 18, 2014, 19:18:18 PM
Hello guys! I made the triangle wave generator circuit which is shown below. The output signal is represented in the picture below.
How can I adjust the output signal in any position of the y axis (for example the bottom angle to start from 0V ). This circuit doesn't give this option.  Have you any idea ?
Title: Re: triangle wave adjustment
Post by: cheerio on June 19, 2014, 11:54:26 AM
my best guess would be to make gnd 0v and not 9v
Title: Re: triangle wave adjustment
Post by: kam on June 19, 2014, 12:52:51 PM
as cheerio said... and also use a rail-to rail amplifier otherwise you will not get 0V
Title: Re: triangle wave adjustment
Post by: marquee on June 20, 2014, 20:39:05 PM
I tried the circuit in 9V voltage supply. As you can see the triangle wave still remains symmetrical in the 0V position. The only thing which has changed  is a distortion in the triangle wave.
Have you any other idea?
Title: Re: triangle wave adjustment
Post by: cheerio on June 21, 2014, 22:51:33 PM
connect gnd to 0V in the schematic.