phase shiftsquare
Is it possible to shift the phase of a square wave (which is generated by an arduino ) with passive components?
I have a 0 to 12v square wave that I would like to split into several phases. The idea is to send the original square wave to load 1, and a 60° shift to load 2, an additional 60° shift to load 3, and so on until I've got 360°.
I also have a 0 to -12 square wave that I would like to apply this to as well.
simulate this circuit – Schematic created using CircuitLab The attached circuit will allow you to vary AC phase shift from 0 to 170 degrees. you would have to experiment and test it, as I'm not sure what affect the distortion caused by such a circuit would have on the audio effect your after. Hope this is some help. It's good to see someone doing some homework before asking the forums! Ben.
You can run a 25KHz square wave through a 2:1 step-up transformer using a non-gapped core with little distortion if you are careful that the square wave has a duty cycle of exactly 50% and, if you use a push-pull winding on the primary, wind bifilar so that you have exactly the same number of turns. Any lack of symmetry will result in the having a DC bias and the output will be distorted. I often run a "D" flip flop divide-by-two on the driver circuit to make sure the waveform stays at 50%.
Best Answer
You could use a "Delay-Line" chip, but you still need active components to do the actual switching.
However, you have not stated whether your frequency is fixed or variable, and I suspect the latter is much more likely.
If so, you need to generate the signals from the MICRO individually, possibly with the addition of a multiplexer chip external to the micro if you need more outputs.