I would like to power a circuit with an op-amp (acting as voltage to current converter) and two transistors (acting as current amplifier) with +12V and -12V. The output current can be as high as 3A. So, I need a dual power supply +12/3A and -12/3A.
Can I use two table-top power supplies (Jameco #220442; regulated switching), and reverse the leads on one of them? A previous post stated something relevant, but I don't completely understand:
Thank you!
Can I use two table-top power supplies (Jameco #220442; regulated switching), and reverse the leads on one of them? A previous post stated something relevant, but I don't completely understand:
"This does not apply to non-isolated DC power supplies where one terminal is hardwired to a power common, (or neutral) connection and you are not free to swap polarities simply reversing connections to your application."
How do I know if the table-top supply I'm interested in has a "terminal hardwired to power common"? It's datasheet says:
2.5. 2-wire input AC line (Line Neutral)
3.11. The DC ground will be isolated from the AC neutral and AC line
I am not an engineer, so please try to explain in the simplest terms possible.3.11. The DC ground will be isolated from the AC neutral and AC line
Thank you!