does It have any solution for +-15volt LEM (current sensor )

Hello Dave,

Please excuse delay.  

We have devices that can assist but I believe the devices you are looking to use are like the DRV401.  The DRV401 provides some signal conditioning but you must design the magnetics.  This has proven to be a challenge for most.

So were you looking at something like the DRV401?  If so please let me know if you would like to change the system complete voltage or just the output value.  If you need to create a lower voltage this would not be possible as it requires a 5V supply voltage.

Javier

thanks for replying

No I am using LEM( LA 200-P) sensor 200A sensor , I want to know how to convert -15v~+15v to 0~3.3v in order to use in instaSPAIN-FOC

does IT have any solution for TIDA (reference  design ) for it?

thanks for attention.

Dave

thanks dear javier

I found the https://www.ti.com/lit/an/sbaa374/sbaa374.pdf useful ,

Now Q1: shall we use OPA2350 instead of  OP320 ?

q2: what is the different between Tidu015.pdf and sabaa374?

thanks for attention.

Dave.

Dear javeir,

Your answer is perfect thanks!

And also I downloaded Analog calculator which is  EXCELLENT for designing this kinds of translation circuit.

Thanks again

Dave.

Dave,

Thanks and please post again when you have more questions.

Javier