Why using optoisolator? Need sample of interface

[shereen15]

Why using optoisolator?

Hello everybody,

My project is design IC Controller for three-phase inverter using FPGA and VHDL coding. Now Im asked to design an interface circuit using optoisolator. I want to know the reason why I've to use optoisolator? And can I have sample of interface circuit using optoisolator?


Thank you.

Best Regards,
Shereen

 

[sivamit]

Re: Why using optoisolator?

Hello everybody,

My project is design IC Controller for three-phase inverter using FPGA and VHDL coding. Now Im asked to design an interface circuit using optoisolator. I want to know the reason why I've to use optoisolator? And can I have sample of interface circuit using optoisolator?


Thank you.

Best Regards,
Shereen

Hi,
Opto isolators are used to electrically isolate(no noise coupling) the 'input' and the 'processing' circuits .

For ur Ref..

https://en.wikipedia.org/wiki/Opto-isolator

Regards,
S

 

[davidgrm]

Re: Why using optoisolator?

The electrical isolation also prevents high voltages being transfered to the controller in the case of one of the components failing.