USB C at 240 watts, how?

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
solar3000
Posts: 71
Joined: Fri May 10, 2013 1:55 pm
Contact:

USB C at 240 watts, how?

Post by solar3000 »

https://www.amazon.com/Anker-Bio-Braide ... 0C4FDJ8F7/

How is that possible?
240 watts thru a USB C cable?
I routinely charge my laptop at about 60 watts (measured). I charge my power drill battery, etc...
All USB C.
As we know, the wires inside are 33 - 30 awg.
dyarker
Posts: 1917
Joined: Fri Aug 22, 2003 1:01 am
Location: Izmir, Turkiye; from Rochester, NY
Contact:

Re: USB C at 240 watts, how?

Post by dyarker »

Surprise me!!!
All USB-C cables must be able to carry a minimum of 3 A current (at 5 V, for 15 W) but some can carry 5 A current (at 20 V, for 100 W).
(from Google) And, that would be minimum capability. Makes the "hand shake" when plugging in more complicated than 100mA or 500mA at 5V of "old" USB. More special ICs that (maybe) a hobyist can't find.

Cheers,
Dale Y
User avatar
CeaSaR
Posts: 1949
Joined: Sat Nov 08, 2003 1:01 am
Location: Phoenixville, PA USA
Contact:

Re: USB C at 240 watts, how?

Post by CeaSaR »

Hey, what do I know?
User avatar
Lenp
Posts: 1529
Joined: Thu Oct 26, 2006 8:11 pm
Location: Maryland
Contact:

Re: USB C at 240 watts, how?

Post by Lenp »

Well, I believe that it works!
I once had over 200 amps flowing through a length of #22 AWg. It worked well for about 0.0001 seconds!
Yes indeed, it did pass the 200 Amp benchmark! :razz:


You think you know a lot, then you learn more, and realize you knew nothing!
Len

“To invent, you need a good imagination and a big pile of junk.” (T. Edison)
"I must be on the way to success since I already have the junk". (Me)
User avatar
CeaSaR
Posts: 1949
Joined: Sat Nov 08, 2003 1:01 am
Location: Phoenixville, PA USA
Contact:

Re: USB C at 240 watts, how?

Post by CeaSaR »

Lenp wrote: Sun Jan 07, 2024 4:14 pm Well, I believe that it works!
I once had over 200 amps flowing through a length of #22 AWg. It worked well for about 0.0001 seconds!
Yes indeed, it did pass the 200 Amp benchmark! :razz:


You think you know a lot, then you learn more, and realize you knew nothing!
That reminds me of the old Amplifier Power Wars, and PMPO, where a 5W amp could be rated for 500W.
Hey, what do I know?
User avatar
haklesup
Posts: 3136
Joined: Thu Aug 01, 2002 1:01 am
Location: San Jose CA
Contact:

Re: USB C at 240 watts, how?

Post by haklesup »

I wasn't familiar but found a good table on Wikipedia, it says quite a lot on this topic in the second half of the page.

Evidently there is a 240W configuration in Type C called USB 3.1, it is still 5A but requires 48V so would only be good for charging larger devices like laptops in that configuration. A charger (not labeled USB 3.1) with high power rating is more likely referring to the sum of all ports.
Post Reply

Who is online

Users browsing this forum: No registered users and 29 guests