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shaping clipped sine wave to square wave

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kushal.khanal

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clipped sine wave

I am having problem in counting the period/frequency of clipped sine wave;
can any one suggest pulse shaping circuitry so that i can measure frequency;

Specially I had problem in calculating frequency deviation in flow measurement using ultrasound;
 

kushal.khanal

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clipped sine wave to sine

IanP said:
Try Schmitt gates ..
Here are some details:
http://www.wenzel.com/documents/waveform.html

Regards,
IanP
FIRST OF ALL,
THANKS A LOT FOR LENDING HELPING HANDS.

I THINK I COULD NOT MAKE YOU UNDERSTAND GUYS!!!

AS SHOWN IN ATTACHED FILE I HAVE CLIPPED SINE WAVE AND I HAVE TO CONVERT IT TO SQUARE WAVE FOR COUNTING ITS WAVE'S FREQUENCY.

ANY IDEA GUYS??????@?!





------
* *
* *
* * .
* * .
----*----------*-----------*---------
. * *
. * *
* *
*-----*
PK-PK (6-8)V

FIG:CILPPED SINE WAVE PULSE TO BE SHAPED TO SQUARE WAVE




. . 5V
* * * * * * *
* * *
* * *
* * *
-- *----------* * * * * * *-----------------------------0V
.
.



FIG: SQAURE WAVE TO BE OBTAINED



CAN YOU HELP WITH THIS IanP????????????
 

kushal.khanal

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clipped sine to square

IanP said:
Feed this signal through a cap to cut-off dc, then, using a comparator, convert it to TTL/CMOS levels ..
More details here:
http://www.edn.com/contents/images/81601di.pdf

Regards,
IanP
No solutions at all
I can't get a complete square;
no improvement guys;
refer attachment:cry:
https://www.edaboard.com/viewtopic.php?p=893600#893600

Added after 12 minutes:

IanP said:
Feed this signal through a cap to cut-off dc, then, using a comparator, convert it to TTL/CMOS levels ..
More details here:
http://www.edn.com/contents/images/81601di.pdf

Regards,
IanP
Yes,I have noted this circuit in the same website;
can i use any opamp instead of 1/2 TLC93
TLV2470;
So, I have not tried it yet....

the input wave is very fast(40khz) so I am afraid whether comparator can switch on same speed and on the other hand i am finding difficulty in obtaining square wave as i mentioned earlier

https://www.edaboard.com/viewtopic.php?p=893600#893600

Regards
kushal khanal
 

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