delayed output for op-amp

[nilsone230384]

delaying opamp output

dr all

i completed the circuit for square wawe generator , variable frequency from o hz to 5 khz , i used lm324n ic for the same ,
now i m looking for the delayed output for some application (one circuit output is normal and other circuit output is delayed with same frequency and magnitude)
i attached the photograph of waveform which actually i need.

so plz help me for this

waitin for positive reply

 

[sunderwood]

You could make the initial signal go through a R-C line, then use a comparator on the output with a fixed threshold.

 

[FvM]

It's much simpler to use a generator with quadrature outputs rather than trying to create a quadrature delay for a wide frequency range.

The requirement should be already considered, when designing the generator. For square waves, a 4:1 frequency divider is another way to achieve an exact quadrature delay, operating the generator at a x4 frequency.

 

[nilsone230384]

would u plz send the circuit for the same

 

[Thanhlongbin]

Hi,
If you are in love with LM324, please enjoy a design here!

 

[Thanhlongbin]

Sorry for typing mistake.
In this design, pls replace time delay formula as :
Time delay= T/4*(1+R3/R4).

So Phase delay=Pi/2*(1+R3/R4).
Best regards
Thanhlongbin