h a l f b a k e r y
I think this would be a great thing to not do.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
or get an account
AC wall adapters and power bricks consume a huge amount of energy, whether the appliance is in use or not. This concept would be a ac adapter in communication with the appliance, and would sense user activity. The protocol would allow for periodic, synchronized sense of load; otherwise, the adapter draws
little or no power from the mains.
LCG3 "Smart Power Strip"
When the controlling outlet starts drawing less power, the secondary outlets are switched off. [jutta, Feb 25 2007]
Mini Power Minder
USB connection tells it when the computer boots and shuts down; power to a second outlet is switched based on that. Plug peripherals into a power strip, and the strip into the secondary outlet. [jutta, Feb 25 2007]
Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
Description (displayed with the short name and URL.)
||So-called "Vampire devices" such as cable tv boxes, stereos, televisions and chargers for laptops and cell phones use power when not in use. [+]
||You don't actually have to talk to the appliance - busy appliances draw more current.
This is exploited by the "Smart Power Strip" series (with or without surge protection); see link. A more minimal form that does use a separate communication line is the "Mini Power Minder", see second link.
||Never seen this on something AC powered, but the 12 volt DC cellphone charger I use in the car does shut itself off when the phone is not connected. [+].