Linked by Thom Holwerda on Mon 13th Apr 2009 18:17 UTC
PDAs, Cellphones, Wireless Because of this whole Easter thing, news is kind of slow today. So, yes, we are going to talk about a charger and a rumoured release date for the Palm Pre. The Palm Touchstone is a charger that uses magnets to keep the phone in place, while charging it through induction; there's no plugs or anything. Palm has let out more details on this new type of charger, and there have also been a number of hints that the Pre might be released on Queen's Day (April 30 for all of our non-Dutch readers).
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Wrong!
by someone on Mon 13th Apr 2009 19:21 UTC
someone
Member since:
2006-01-12

It's Electromagnetic induction: http://en.wikipedia.org/wiki/Electrostatic_induction

Also, please don't feel bad about getting this wrong. To quote Wikipedia:

Electrostatic induction should not be confused with electromagnetic induction; both are often referred to as 'induction'.

Reply Score: 4

RE: Wrong!
by _txf_ on Mon 13th Apr 2009 19:49 in reply to "Wrong!"
_txf_ Member since:
2008-03-17

yup. It's nothing that great...all it is is a loosely coupled transformer(i.e. two electromagnets). The only major trick here is compensating for losses due to loose coupling (as opposed to a transformer where the two cores are directly in contact and are geometrically symmetrical, thus fewer losses in magnetic flux)...

Edited 2009-04-13 19:50 UTC

Reply Parent Score: 2