B3603 alternative for +-12V

[charonme]

could you please recommend an alternative for the B3603 which could I use to generate +12V, GND, -12V and have current limiters and ampmeters on both rails? (<300mA is sufficient, noise doesn't matter much)
I tried connecting two B3603s to a mean well +-15V PSU but they apparently can't work like that

[madires]

How did you wire the PSU and the two B3603s? A diagram could be helpful.

[charonme]

There is 2.8v potential between the first out- and the second out+.
When I connected them, I measured <1mA through the connection, but the second B3603 outputted 14.8V regardless of what voltage I set the B3603 to output.
The same happened when I tried connecting out+ to the mean well com

[madires]

I've found a circuit diagram for the B3603 on https://github.com/baruch/b3603. If you have a look at the voltage & current controls you'll see what causes the issue (feedback tied with local Vcc). I don't know any similar modules, but I'd recommend to check their circuit before buying. Otherwise you might run into the same problem again. Or you could go for a classic lab PSU design with opamps and pass transistors.

[charonme]

that's why I'm looking for a similar module that would give me +12v, gnd and -12v (the voltage doesn't even have to be adjustable)

[charonme]

I just realized I could try this

[charonme]

nah, didn't work

I'll probably have to look for a cheap benchtop psu with +,- and gnd outputs

[madires]

Do you need the PSU to power a specific project or for typical lab use?

[charonme]

specifically for testing equipment (based mostly on opamps) that is powered by +12V and -12V power

[madires]

In this case I'd recommend a small linear regulated lab PSU. Cheap lab SMPSUs are quite noisy.

[nanofrog]

In this case I'd recommend a small linear regulated lab PSU. Cheap lab SMPSUs are quite noisy.

Seconded. 

Check the used market, as you'll do a lot better there IME. Dual, triple, and quad channel supplies offer a better value than a bunch of individual ones.

Do get one that has both CV (constant voltage) and CC (constant current) capability. You'll want max voltage of 30V or so, which will allow you to power up op-amps (i.e. part may specify +/-20V).