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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 tools, electric toothbrushes, and medical devices.
The proliferation of portable wireless communication devices such as mobile phones, tablet, and laptop computers in recent decades is currently driving the development of mid-range wireless powering and charging technology to eliminate the need for these devices to be tethered to wall plugs during charging. [172]
Qi (/ tʃ iː / CHEE) is an open standard for inductive charging developed by the Wireless Power Consortium.It allows compatible devices, such as smartphones, to receive power when placed on a Qi charger, which can be effective over distances up to 4 cm (1.6 in). [1]
This feature has also been implemented on some laptop docking stations allowing device charging even when no laptop is present. [82] On laptops, charging devices from the USB port when it is not being powered from AC drains the laptop battery; most laptops have a facility to stop charging if their own battery charge level gets too low. [83]
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When a laptop computer is operated while recharging, the integrated circuitry which controls the charging makes use of a power supply unit's remaining electrical current capacity. This allows supplying the device's components with power during usage while maintaining an uncompromised constant charging speed.
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Wireless connectivity 2.5" SATA3 bay Charging port Infrared sensor NUC5i7RYH: NUC5i7RYB: i7-5557U: 28 W Iris 6100: Yes Yes No IEEE 802.11ac, Bluetooth 4.0, Intel Wireless Display: Yes Yes Yes NUC5i5RYH: NUC5i5RYB: i5-5250U: 15 W HD 6000: Yes Yes No Yes Yes Yes NUC5i5RYK: Yes Yes No No Yes Yes NUC5i3RYH: NUC5i3RYB: i3-5010U: HD 5500: Yes Yes No ...