strahd_von_zarovich
Advanced Member level 4
Hi, I have a system which two signals must have 90 degree phase difference . I am measuring their phase difference using mixer(both signals at the same frequency and other harmonics are filtered). I have a phase shifter to adjust phase of one of them. Phase shifter is voltage controlled. My question is what kind of circuit can be used to minimize voltage output of the mixer. Some kind of opamp integrator circuit in a closed loop maybe ? :thinker:
Since i can't know which signal is lagging or leading, sometimes i must shift phase further, right ? :thinker:
Since i can't know which signal is lagging or leading, sometimes i must shift phase further, right ? :thinker: