Barry: This is the same principal used to charge the batteries for the artificial heart- an inductive loop.
Ralph Cameron ----- Original Message ----- From: "Barry Ma" <[email protected]> To: <[email protected]> Cc: <[email protected]> Sent: Tuesday, September 26, 2000 8:26 PM Subject: Re: Re[3]: Battery Safety > > Eric, > Thanks for the nice answer. > Barry Ma > --------- > On Tue, 26 September 2000, "Eric Petitpierre" wrote: > > > > > Barry, > > > > There is likely an excitation coil in the base. I sends out a > > magnetic field. The recever, (toothbrush) has a receive coil that > > charges the battery. > > > > In other words, the "primary" of the transformer is in the base. The > > "secondary" of the transformer is in the toothbrush. When the > > toothbrush is in the base, the proximity is close enough to charge the > > battery. > > > > Eric Petitpierre > _______________________________________________________________________ > > > _______________________________________________________________________ > > Free Unlimited Internet Access! Try it now! > http://www.zdnet.com/downloads/altavista/index.html > > _______________________________________________________________________ > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
