Obtaining higher voltages from boost converters

[Zak28]

I read its safe to stack boost converters in series to obtain higher voltages but only if they are galvinacally isolated, does this mean each module needs its own isolated power supply on the input side?

 

[barry]

I think it means the OUTPUTS are isolated from their inputs. That way you can use a single supply for all the inputs.

 

[FvM]

The term "boost converter" is mostly used to describe specific topologies of non-isolated converters. In so far the question needs clarification.

What are the actual application requirements?