✳flâneur — a map of the web's best reading

Wireless power transfer - Wikipedia

en.wikipedia.org · 15,358 words · saved by 1 readers

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powered transmitter device generates a time-varying electromagnetic field that transmits power across space to a receiver device; the receiver device extracts power from the field and supplies it to an electrical load. The technology of wireless power transmission can eliminate the use of the wires and batteries, thereby increasing the mobility, convenience, and safety of an electronic device for all users.[2] Wireless power transfer is useful to power electrical devices where interconnecting wires are inconvenient, hazardous, or are not possible. Wireless power techniques mainly fall into two categories: near field and far-field.[3] In near field or non-radiative techniques, power is transferred over short distances by magnetic

Wireless power transfer - Wikipedia Jump to content From Wikipedia, the free encyclopedia Electrical transmission without physical connection 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 ; also wireless energy transmission or WET ) is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powe

Explore this link on the map →

related reading