Connecting two buck boost boards for a split supply?

[Delta Prime]

Thks for all the replies,

You're welcome.

Now surely....!! ??

And don't call me surely...

Would there be a problem if I powered two of these and connected the +ve output of one board to the -ve output of the other to have a split supply?

You're asking superb questions.
Don't stop.

 

[JohnSan]

Did it work?

When I tried this some while back, it didn't work.
With individual (isolated) transformer secondaries.
I found if either power supply was used individually, they worked.
But supplying anything as + and -, the -ve supply didn't start up.

I assume you experienced something similar?