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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 ...
The Wireless Power Consortium (WPC) is a multinational technology consortium formed on December 17, 2008, and based in Piscataway, New Jersey.Its mission is to create and promote wide market adoption of its interface standards Qi, Ki Cordless Kitchen, and Qi Medium Power for inductive charging.
The bottom side of an LG WCP-300 Qi charging pad Opened Nokia DT-900 Qi charger. The WPC published the Qi low-power specification in August 2009. [8] The Qi specification can be downloaded freely after registration. [9] Under the Qi specification, "low power" inductive transfers deliver power below 5 W using inductive coupling between two ...
We've seen a handful of new Energizer cases and charges crop up over the past few months, but the company's turned up at CES with those and a ton more, and we got up close with their complete lineup.
The supposedly lower efficiency of inductive power charging is arguable; recent battery chargers with direct connection (an example in the link below) do not show much better efficiency 85-90% compared to the 20 year-old Magne Charge system with 86% efficiency.
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Low-frequency induction can be a dangerous form of inductive coupling when it happens inadvertently. For example, if a long-distance metal pipeline is installed along a right of way in parallel with a high-voltage power line, the power line can induce current on the pipe. Since the pipe is a conductor, insulated by its protective coating from ...