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Wireless power transfer. Inductive charging pad for a smartphone as an example of near-field wireless 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 ...
This chip is commonly found in smartphones and other NFC devices. Near-field communication ( NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 centimetres (1.6 in) or less. [ 1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of ...
The World Wireless System was a turn of the 20th century proposed telecommunications and electrical power delivery system designed by inventor Nikola Tesla based on his theories of using Earth and its atmosphere as electrical conductors. He claimed this system would allow for "the transmission of electric energy without wires" on a global scale ...
The MagSafe Charger is a single charging pad that contains recyclable rare-earth magnets surrounding a Qi wireless charging coil attached to a 1m USB-C cable. The MagSafe Charger delivers up to 15 W of power on the iPhone 12, 13, 14 and 15 series, with the exception of the iPhone 12 Mini and 13 Mini, which support 12 W. [11] The Wall Street Journal found MagSafe charged at half the speed of a ...
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 ...
The following is a list of products manufactured under the Sony Ericsson brand.Most of the models have been released under multiple names, depending on region of release, currently usually indicated by a letter added to the end of the model number ('i' for international, 'a' for North America, and 'c' for mainland China), but indicated on some (mostly older) models by a slightly differing ...
The phone was originally planned to be released in October 2021 but was delayed due to the 2020–present global chip shortage. The S21 FE was released on 11 January 2022. [9] Its battery had 4500mAh (25W wired and 15W wireless). It was also equipped with a 6.4" 1080x2340 display which included under display fingerprint. [10]
The phone charges up to 45 watts with USB-C, 15 watts Qi wireless charging, and 5 watts reverse charging. It has a 4700 mAh battery. It has a 6.7-inch display. The screen has a 20:9 ratio and a density of 394 ppi. It has a weight of 201.2 grams (7.09 ounces). It has a Corning Gorilla Glass 5 screen, and Gorilla Glass on the back of the phone.
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