Electrical and Computer Engineering

883 readers

8 users here now

Electrical and computer engineering (ECE) community, for professionals and learners. Discuss ECE related topics here, for instance digital design, signal processing, circuit analysis, electromagnetics, microelectronics, power electronics, RF electronics, etc.

founded 2 years ago

MODERATORS

phreedf

dragontamer

There exist power over fiber components that can provide 3v 180mA from 1.5W of 800nm infrared light coming through a standard multimode optical fiber. (chaos.social)

submitted 1 year ago* (last edited 1 year ago) by dragontamer to c/ece

8 comments fedilink hide all child comments

This Mastodon post hit #1 on Hacker News today, I think people around here would be interested.

Then you look at the $350 price point and walk away.

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

[–] [email protected] 3 points 1 year ago (2 children)

So only 30% efficient?

[–] bfg9k 9 points 1 year ago (1 children)

It's power over light. You're gonna lose some of it.

It's incredible you can do this at all really.

[–] betterdeadthanreddit 6 points 1 year ago

$350 and 30% efficient today, $3.50 and 90% efficient* in a decade. Gotta start somewhere.

Not an actual prediction of future price and performance in case someone starts looking at the second set of numbers. Just saying if it works well enough to be sold to home users, I expect continued development and production lines to have an impact. Also does not account for inflation. Terms and conditions may apply, see your local dealer for details, void where prohibited by law and all other standard disclaimers.