- #1
edmondng
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I have a sine wave. i want to make it 90 degrees out of phase. if i remember correctly i could use a capacitor to create a phase lag of 90 degrees (like on of those motors where they put a capacitor to create the offset so it starts to turn)
Do you put the capacitor in series? What value? putting the cap would just make it ac coupled not sure if would do the lag
If not, how can i create a 90 degrees phase shift
edit: i guess a differentiator would work. any other simpler way through circuit? my op amp is configured non-inverting input
Thanks
Do you put the capacitor in series? What value? putting the cap would just make it ac coupled not sure if would do the lag
If not, how can i create a 90 degrees phase shift
edit: i guess a differentiator would work. any other simpler way through circuit? my op amp is configured non-inverting input
Thanks
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