I am looking for phase shifting 50hz sine wave by 90 deg. I found two solutions, one using a differentiator and other with all pass filter. Which one to use?
Not likely if the source is the 50Hz mains.Integrator response (excellent phase stability as crustchow states) but
amplitude an issue :
True, I didn't have a bleed resistor across the capacitor in my circuit to minimize any DC shift from input bias or leakage currents.The integrator solution has a (drifting) DC shift problem, caused by integrating DC offsets (Opamp, and leakage currents on PCB and capacitor) and amplitude vs frequency.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?