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Wireless Power Consortium Pushes for "Qi" Standard
The Wireless Power Consortium (comprised of Samsung, Sanyo, Olympus, Philips, Texas Instruments, and others) has started a push towards a wireless charging standard under the moniker "Qi" (pronounced "chee"). "Members of the Wireless Power Consortium are reviewing version 0.95 of its technical specification which defines a proposed standard for charging devices, using up to 5Watts power, delivered by electromagnetic induction. The spec could evolve into a standard — and will be demonstrated by multiple vendors on September 15th to 16th. ... It is less ambitious than the system demonstrated this summer by Witricity, which operates at a distance of a few meters, using resonance, which the company claims has green benefits through replacing disposable batteries."
...for those that don't want to read the first damn sentence in the summary but may wish to discuss it intelligently in person.
There. Fixed that for you.
Most wall warts nowadays are switch mode and use almost no power when not in use.
It's called pinyin and is the standard romanisation of Chinese characters. It is used in China and therefore they DO use the "latin script".
Qi, as in the Chinese romanization of æ£.
This is the same "qi" as Taichi's 'chi'. The life energy
It's the same 'chi' as the japanese 'Ki' æ-- as in "Tenki" (weather)
http://en.wikipedia.org/wiki/Qi
*Slashdot really needs to move into the modern era with support for international unicode characters...
I forsee Witricity adapters and a slew of 3rd party knock-off components for home and travel that allow us to bathe ourselves in a continuous blanket of electromagnetic radiation 24 hours a day.
Sorry to tell you, but that's already happening from sources such as:
Some mornings it's hardly worth chewing through the restraints to get out of bed.
Anyway, why spell it "Qi" when the Chinese/Japanese language does not use the Latin script ?
Because Qi is the Pinyin transliteration, and Pinyin is pretty much as close as you can get to standard. Chinese and Japanese don't use the Latin script but there most certainly do exist standards to transcribe them consistently.
It gets a little hairy with Chinese, but that's how you write it and is sexier than both "Chee" and "Chi" (the now-outmoded Wade-Giles way of transliterating it).
+1 to worn connectors. My old phone (an Ericsson K700i) retired not due to any inherent problem with the phone itself (it'd survived being soaked with water multiple times at Songkran in Thailand, and being thrown (along with myself, but I'm waterproof) in a dam) but because the retarded little push-contact charging plug no longer connected.
I swore never to buy another phone with the same system, then I saw the W880i (damn you, Sony, for making such a slim sexy phone!) and now two years later I'm having the same issue.
Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
Comparing the peak power of GSM to average power of this system is misleading at best (gsm transmits only 1/8 of the time due to TDM) and a lie at worst (GSM power control almost always pushes the level 10-20dB below that).
Then 2W max is on 850/900MHz, 1800/1900 has max 1W.