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Author Topic: triangle wave adjustment  (Read 2552 times)

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marquee

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triangle wave adjustment
« 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 ?

cheerio

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Re: triangle wave adjustment
« Reply #1 on: June 19, 2014, 11:54:26 AM »
my best guess would be to make gnd 0v and not 9v

kam

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Re: triangle wave adjustment
« Reply #2 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

marquee

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Re: triangle wave adjustment
« Reply #3 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?

cheerio

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Re: triangle wave adjustment
« Reply #4 on: June 21, 2014, 22:51:33 PM »
connect gnd to 0V in the schematic.