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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 vehicles, power ...
A disadvantage of this configuration for wireless charging is that the two plates in the receiving device must be aligned face to face with the charger plates for the device to work. [ 14 ] Longitudinal (unipolar) design: [ 13 ] [ 91 ] [ 94 ] In this type of circuit, the transmitter and receiver have only one active electrode, and either the ...
Qi (pronounced / tʃ iː / CHEE; [1] from simplified Chinese: 气; traditional Chinese: 氣; pinyin: qì) is an interface standard for wireless power transfer using inductive charging.
European Parliament adopted new rules to make USB type-C the common charging standard for small electronic devices by the end of 2024. Directive (EU) 2022/2380 is a directive of the European Parliament and the European Council which was formally adopted on 23 November 2022 amending Radio Equipment Directive 2014/53. [1]
In the past, the power source used on the JR Tokai SCMaglev car was generating with a gas turbine generator. In 2011, they succeeded in powering while driving (CWD:charge while driving) across a large gap by the JR Tokai proprietary 9.8 kHz phase synchronization technology developed based on technology similar to AGV's wireless power scheme.
The resulting directive, Radio Equipment Directive 2021/0291 requires all hand-held items sold from 2024 onward to have and be able to charge via a USB Type-C port. [29] Manufacturers would also be required to offer consumers the option of purchasing their devices without any charging device.
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A walkie-talkie, more formally known as a handheld transceiver, HT, or handheld radio, is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings , radio engineer Alfred J. Gross , Henryk Magnuski and engineering teams at Motorola .