Wireless charging technology – inductive power transfer

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Qi wireless charging technology uses an electromagnetic field and inductive coupling to send energy from point A (transmitter) to B (receiver).

Qi chargers typically use an induction coil to create an alternating electromagnetic field from within a charging base station. A second coil in a mobile device takes energy from this electromagnetic field and converts it back into electrical current to charge the battery. Any compatible mobile device up to 15W can be (re)charged this way.

Most ZENS chargers are equipped with one big charging coil, to ensure flawless wireless charging every time the device is used. Thanks to the large number, the device(s) can be freely placed on the charging pad and don’t have to be locked into position. Inductive charging makes charging mobile devices more convenient; rather than having to connect a power cable, the unit can be placed on or close to a charging sweet spot.

 

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