Series / parallel switching two power supplies?

[Chris Wilson]

I have two HP computer 50V server power supplies switched as series or parallel using the switch arrangement similar to the attached image. I get 100V or 50V (at a LOT of Amps.... Given I have a 3 way two pole rotary switch can I arrange it so in the third position I get 50V but from just one of the two supplies? Should be easy to work out, but I am having a "senior" moment here <LOL>  Thanks.

[electr_peter]

Given I have a 3 way two pole rotary switch can I arrange it so in the third position I get 50V but from just one of the two supplies?

I guess you can. Just add small modification to switching arrangement and use either parallel or series or single PSU.

[Chris Wilson]

Thanks Peter, feeling stupid, but I just got a mental block about it

[Paul Moir]

Make sure that switch is break-before-make!

[Chris Wilson]

Thanks for the warning, it is, but I won't be doing any hot switching, cheers Paul.