Voltage conversions with galvanic isolation

Chris — Thu, 31 Jan 2008 09:06:09 +0100

by Maurizio Stefani

The following article is an example of how even an electronics project with a requirement rather simple, needs system considerations and not just circuit ones.

In practice, it is often necessary to measure signal voltage. Each of us can imagine many ways to archive that. The methods various from analog systems to digital ones, various in complexities and performances.

But if we add more requirements to the initial one ( the voltages should be measured at more than one taps and the isolation is mandatory) then the possible solutions number is decreasing. Of course it can be still trivial, I can put a transformer and that's it. But if the voltage is continuous?

So it is still a simple one, but we have to start to look for some particular components to help us.

So we have to sort out some problems hereafter:

Opto

Voltage conversions with galvanic isolation