delayed output for op-amp

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nilsone230384

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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
 

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

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.
 
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
 

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