-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Tuesday 2008-01-08 at 17:57 +0100, Jon Clausen wrote:
http://www.elsparefonden.org/public-and-commerce/products/energy-saving-equi...
But that doesn't say how this particular piece works. Typically it would use a relays to switch off the rest of the equipment, but a relays draws significant power from the usb bus of a portable running on battery. What I described were methods to do the same as already known to exist, but designed for laptops.
riiiight... I didn't realize what you meant.
Elsparefonden is not a vendor of anything, it's a trust that does research on, and gives advice about reducing powerconsumption in general. Hence the above doesn't pertain to any *particular* device.
Ah... I see. That wasn't clear to me, but I guessed so. Nice.
I guess that most of those thingies basically just use the power from the USB to hold open (or closed) a relay, which turns on the mains. And that power would come from the battery of a laptop.
Exactly.
http://www.elsparefonden.org/public-and-commerce/products/energy-saving-equi...
suggests that the whole concept may become obsolete, if Wake-On-USB ends up being the norm...
I didn't know that. I'll have that in mind next time I shop around for a board. Actually, if I needed such a thing for my desktop, I would simply get a line from the 12 volts supply inside the box, and use it for a relays. And an intelligent vendor would simply reinstate the output AC plug that the original PC had, which was used to connect the monitor to, contrary to the direct connection to the wall used nowdays. That plug could be used to power everything the PC needs, instead of having to reinvent the wheel to circumvent a lack of thought (or too much appetite for saving money) from the manufacturer.
But I agree that a version designed for laptops would be good.
The snag is that they would need some power from the ac line instead, full time, and some electronics. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) iD8DBQFHg9HbtTMYHG2NR9URAokeAKCJ4qwODep43MwRbei8FHmLXwF44gCghury PuZ6B1va1+zI066ZOa57Sxg= =GF9k -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org