Ask Electronics

3173 readers

1 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 1 year ago

MODERATORS

[email protected]

Making a USB desk fan from spare CPU fan (self.askelectronics)

submitted 1 year ago by Devils69Advocate to c/[email protected]

10 comments fedilink hide all child comments

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.

you are viewing a single comment's thread
view the rest of the comments

[–] Devils69Advocate 1 points 1 year ago

Ah ok. So not as simple as I imagined it to be. I'll stick with the boost converter. haha