Triangular signal shift phase

Bon jour belhouss13.

I presume you want a triangular signal with a frequency of 3.6kHz locked to another signal.
Note K is degrees Kelvin. Upper and lower case letters are critical in electronics.

You say you have triangular signal already, please tell us how this is produced.
If you wish to have the signal locked to a reference, then the way I would do it would be to square up the reference and then pass it through an integrator. This could be as simple as a resistor and capacitor or something more complicated depending on the accuracy that you desire.

Your english is better than my french.

 

Quite agree with your comment about K and k, then I was slightly thrown by "square up".
I had been thinking of either a Schmidt trigger with varying DC bias so that it triggered at different points along the slope of the triangle wave, or to use the input wave to trigger a monostable ( < about 200 microsec pulse), to give a new series of pulses at the same frequency, but with different transitions. Then pass the resulting non 50:50 square wave through an integrator to get a new triangle wave. But the trouble is, because neither gives an equal mark:space ratio square wave, the integrated wave is an asymmetric triangle.
When I read "square" I immediately thought you were squaring the triangle wave to double the frequency, so that after adding the phase shift, you could divide by 2 to restore the 50:50 ratio square wave, which could integrate to give an accurate triangle.

Not a criticism, just noting that it's not just upper & lower case that can cause confusion! Once my brain took in the "up" as well, I realised my error. And when writing my bit above, I struggled to think how I should describe a square wave when it is not square but elongated, oblong, rectangular, ...? These things crop up all over. Only yesterday I was struggling to help someone with a calculation where he had used m and n as the symbols for his distances. So when I wanted to say 3 times m metres, I was writing 3mm, which I eventually decided should be 3m m.

 

What you are describing is a variation of a phase-locked loop. There are two basically different ways to do this. One is to recreate the input signal at a different phase; that is what is discussed in posts #2 and #3. A potential problem is that a circuit based on a square wave and integrator has the signal frequency and amplitude inherently locked together. Getting both to track the input input waveform exactly is doable, but not simple.

The other way is to shift the phase of the actual input signal using some kind of group delay mechanism. Back in another life I designed and built a voltage-variable delay line for broadcast-quality video. A true analog phase delay is possible, but 3.6 kHz is a very low frequency for such circuits. Another approach is to digitize the input triangle wave with an A/D converter, write it to a memory, and recreate it from the memory with a D/A converter. All of this can be done within a medium-speed microcontroller such as a PIC, but it also can be done without any microcontroller or device programing. One A/D, one D/A, one memory chip, two binary counters, one clock source, and a monostable that is controlled by whatever it is that is controlling the phase delay.

ak

 

If I understand correctly what you did.
It is only possible if the input triangular signal is a fixed one.
that is frequency and offset are fixed and known.

Is this the case?