Choosing power supply, how to get the voltage and current ratings?
I'd like to power my new LG M2450D monitor with a basicXL BXL-NBT-U02 universal AC-DC power adapter. This PSU is rated 90W max and supports 15-24V output voltage. The original monitor PSU (PA-1650-68) was fixed at 19V and 3.32A.
Now, doing the math:
90W / 19V = 4.74A
Of course this is an ideal value, what is "safety margin" i should assume for the real max amperage?