I have built 1 simple square wave generator circuit using a 555 timer and wanted to add another circuit to be able to shift the signal as necessary to bring two signals in phase. I have another 555 timer circuit that generates same square waves and wanted signals to be used in phase with each other. These circuits generate signals in the range of 0.15Hz to 800KHz. I needed a phase shift circuit that can take the signal of FG1 (frequency generator 1) and shift it by 180 degrees max to be in phase with the FG2. Kind of like this
SQIN____|-----|____|-----|
OUT__|-----|____|-----|____
The idea is to mechanically control the phase shift through 1or 2 variable resistor(s). Any idea how to do this. I have searched in the internet and only came up with 1 circuit which could not understand...Any help would be appreciated. I would settle for less phase shift (up to 90degrees)if it is simple solution.
SQIN____|-----|____|-----|
OUT__|-----|____|-----|____
The idea is to mechanically control the phase shift through 1or 2 variable resistor(s). Any idea how to do this. I have searched in the internet and only came up with 1 circuit which could not understand...Any help would be appreciated. I would settle for less phase shift (up to 90degrees)if it is simple solution.