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  2. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    When the phone is set on the pad, a coil in the pad creates a magnetic field [1] which induces a current in another coil, in the phone, charging its battery. Wireless power transfer ( WPT ), wireless power transmission, wireless energy transmission ( WET ), or electromagnetic power transfer is the transmission of electrical energy without wires ...

  3. Inductive charging - Wikipedia

    en.wikipedia.org/wiki/Inductive_charging

    Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...

  4. The best multi-device wireless charging pads for 2024 - Engadget

    www.engadget.com/best-multi-device-wireless...

    Belkin MagSafe 3-in-1 Wireless Charging Pad. Best premium 3-in-1 wireless charger. $150 at Amazon. Logitech Powered 3-in-1 Dock. 3-in-1 wireless charger runner up. $47 at Amazon. Anker 533 ...

  5. The best multi-device wireless chargers you can buy - Engadget

    www.engadget.com/best-multi-device-wireless...

    That’s not to say these will be slow, but there just isn’t much separating them on the speed front. As a general rule, the quickest multi-device chargers tend to top out at 15W for phones. And ...

  6. Drones that charge on power lines may not be the best idea

    www.engadget.com/drones-that-charge-on-power...

    An inductive charger pulls current from the power line. When the battery is full, the gripper opens and the drone continues on its way. At the outset, the idea is for drones that inspect power ...

  7. Resonant inductive coupling - Wikipedia

    en.wikipedia.org/wiki/Resonant_inductive_coupling

    Resonant inductive coupling or magnetic phase synchronous coupling [4] [5] is a phenomenon with inductive coupling in which the coupling becomes stronger when the "secondary" (load-bearing) side of the loosely coupled coil resonates. [5] A resonant transformer of this type is often used in analog circuitry as a bandpass filter.

  8. Wireless charging cases could free people from hunching by electrical outlets and rationing their energy all day. While smartphones have gotten progressively more slim and powerful, battery life ...

  9. Ethernet over coax - Wikipedia

    en.wikipedia.org/wiki/Ethernet_over_coax

    Ethernet over coax. Ethernet over Coax ( EoC) is a family of technologies that supports the transmission of Ethernet frames over coaxial cable. The Institute of Electrical and Electronics Engineers (IEEE) maintains all official Ethernet standards in the IEEE 802 family.

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