Synchronous adjustment

Hi all

I had to set up a synchronous recovery ("synchronous turnaround in french") in Labview and I don't know how to do.
The goal is to make the rectification with an acquisition that is in sync (or not) with a reference pulse.

Below the multisim circuit:

4066BD_5V is a simple switch: impulse high-> (5V) low pulse-> GND

The circuit works very well, I just had to make this implementation in Labview.

Thanks for your help.

I wanted to study the synchronous adjustment for my thesis project for a long time (before the switches such as the 4066 were available).

Review the U2-R1-U1A tension. It is either equal to V4 tension or it is approximately equal to zero (depending if you are ignoring the resistance on the switch). U1A exit, you will have a similar signal with the exception of opposite phase to the reference V1 signal.

So, the question becomes: how you implement changing the V4 signal based on the value of the V1?

One way to do would be to compare the signal V1 to a threshold (absence of stress seems reasonable). Convert the Boolean result of the comparison to (0,1) and mutliply V4 by the result.

Lynn

Tags: NI Software

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