Build an auxillary output from a Hi power DC converter

[vimalkhanna]

I had built a 500w DC converter from 24VDC battery to 80VDC /6Amps .
I have to build a Vme signal for signalgood , Failure , Brownout data .
There has to be NO interaction between the main and data signals .
Experts kindly guide

 

[BradtheRad]

An optocoupler. LED shining on a photodetector.

You can drive the LED using a capacitor. Uses reactance to drop AC voltage.

Current will be at safe levels through the LED, if you select proper values.

https://www.edaboard.com/threads/30310/