If I wanted to make a USB desk fan from a spare CPU fan (input: 12V, 0.15A), could I just solder a resistor to the positive lead of the USB wire? I plan on getting an adjustable voltage booster, but I was curious if this was possible. I think I would need a 13 ohm resistor for USB 3.0.

  • human_no_4815162342@discuss.tchncs.de
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    1 year ago

    That’s not what I was saying, PD included 12v up to 2.0 (I am going from memory) so it’s not multi standard support but retrocompatibility from modern PD to the older version

    Edit: I checked and the requirement was removed from rev 1 to rev 2 so now it’s optional