Hi everyone, was lurking around trying to find what i need, which is a way to control a square wave's phase output, i have only worked with sinusoidal waves and i know that circuits like RC oscillator can be used to change it's phase, but suddenly i was asked to do it directly for a square wave and after a while searching around i'm kinda at a loss of what to do (use).
First things first, let me explain my objective, i am doing this in order to do a multiplexer, i'm going to to have 3 different waves that im going to need to take samples of, and put them all together, so, in order to do the sampling, i need the 3 square wave signals with 3 phases, one with 0° other with 120° and the other with 240° , and i will be generating the square wave directly from a wave generator, so i pretty much just have to do 2 circuits to change it to 120° and other to 240° since the 0° is just the original one.
After that im already investigating how to use the 4066 to do the multiplexing part, but before that i need to be able to do this or i won't be able to get nowhere.
And i found this thread that has a close question to what im wondering http://forum.allaboutcircuits.com/showthread.php?t=11725 specifically, the reply that got my attention was SgtWookie's http://forum.allaboutcircuits.com/showpost.php?p=71323&postcount=5 , there, using a 4093 he seems to post exactly what i -think- i need.
So, i would like to hear everyone's opinion in how to do this, like, what i would need to get in order to do it (since i have to do it in physical), of course i have multisim so i dont mind examples using that, and also, if someone understands better SgtWookie's image, i would like to know how to calculate the phase i want the output to be, since that is the only problem i have with that image, i need to have these specific phases in order to be able to multiplex without problems and be able to recover the original 3 signals later, of course, i imagine is related to the resistor and capacitor's value but im not sure how specifically to take out the phase i want...
Thanks a lot for the help in advance
First things first, let me explain my objective, i am doing this in order to do a multiplexer, i'm going to to have 3 different waves that im going to need to take samples of, and put them all together, so, in order to do the sampling, i need the 3 square wave signals with 3 phases, one with 0° other with 120° and the other with 240° , and i will be generating the square wave directly from a wave generator, so i pretty much just have to do 2 circuits to change it to 120° and other to 240° since the 0° is just the original one.
After that im already investigating how to use the 4066 to do the multiplexing part, but before that i need to be able to do this or i won't be able to get nowhere.
And i found this thread that has a close question to what im wondering http://forum.allaboutcircuits.com/showthread.php?t=11725 specifically, the reply that got my attention was SgtWookie's http://forum.allaboutcircuits.com/showpost.php?p=71323&postcount=5 , there, using a 4093 he seems to post exactly what i -think- i need.
So, i would like to hear everyone's opinion in how to do this, like, what i would need to get in order to do it (since i have to do it in physical), of course i have multisim so i dont mind examples using that, and also, if someone understands better SgtWookie's image, i would like to know how to calculate the phase i want the output to be, since that is the only problem i have with that image, i need to have these specific phases in order to be able to multiplex without problems and be able to recover the original 3 signals later, of course, i imagine is related to the resistor and capacitor's value but im not sure how specifically to take out the phase i want...
Thanks a lot for the help in advance
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