Question about triple output power supplies

[laplacepwn]

Hi everyone,

I currently use a GW Instek triple output power in my practical classes at university, shown below. 3 outputs, each having their own +ve and -ve terminals.



I am curious to know if other triple output supplies that have say ±25v and a +6v channel, like the Rigol unit shown below, can use the negative supply output as a 3rd positive output? I mean, because the + and - channels both share a common port, can you power something with the positive rail, using the common as a common connection and then power something else with the negative terminal being used as a common connection and taking the reverse polarity so that the common output (with respect to the negative terminal) can power something else with a positive voltage (that is greater than 6v so using the +6v channel is not an answer I'm looking for )?



Sorry if that was confusing. Hopefully you all can understand what I am asking.

[ivaylo]

Depends on the PSU. With some you can do what you are asking, with others you can't. Say the Rigol you are showing can not be used with three independent channels like the GW Instek. If you aren't sure about a specific model just check the manual.