implement the circuit of LV 25-P voltage transducer

[Maitha]

Hi everyone,

I have a hard time to implement the circuit of LV 25-P voltage transducer, as seen in the figure it is from the datasheet (attached file), I need to simulate it using multisim software with these required values:

Voltage input is 500V where R1=50 kΩ, and Rm=200Ω where the output voltage will be 5V. The supply voltage will be 15 V. I tried my best to do it and the other figure shows my work but I’m also not sure about it, and I don’t know what should I do with 2 & 3 pins from the amplifier where it is not clear what that symbol from the datasheet refers to.

I appreciate all your efforts to help me and hope you all have a nice day.

This is the circuit from the datasheet:

this is the circuit I have done in multisim.

 

[KlausST]

Hi,

I've used LV-25 many times without problems. So I guess there is no problem with the LV-25.

I see no need for a simulation. Just keep on the datasheet informations.
But that's my personal taste - not to simulate ...

But your simulation circuit is not how the LV-25 works.
It includes a ferrite core with a gap. In the gap there is a hall sensor. The output of the hall sensor goes to the Opamp input. The Opamp regulates the magnetic field in the core gap to be zero. Not easy to simulate.

Klaus