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The standard allows compatible devices, such as smartphones, to charge their batteries when placed on a Qi charging pad, which can be effective over distances up to 4 cm (1.6 in). [2] The Qi standard is developed by the Wireless Power Consortium. [1] As a universal, open standard Qi-enabled devices are able to connect to Qi chargers from any ...
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 ...
Resonant inductive couplingor magnetic phase synchronous coupling[4][5]is a phenomenon with inductive couplingin which the coupling becomes stronger when the "secondary" (load-bearing) side of the loosely coupled coil resonates.[5] A resonant transformerof this type is often used in analog circuitry as a bandpass filter.
Constant voltage. Constant voltage charging is a widely used charging method involving constant voltage between the battery poles. The starter battery uses constant voltage charging when the vehicle is running. If the specified voltage constant value is appropriate, it can ensure that the battery is fully charged, while also minimizing gas and ...
IEC 61851 is an international standard for electric vehicle conductive charging systems, parts of which are currently still under development (written 2017). IEC 61851 is one of the International Electrotechnical Commission 's group of standards for electric road vehicles and electric industrial trucks and is the responsibility of IEC Technical ...
Integrated Public Alert & Warning System Open Platform for Emergency Networks (IPAWS-OPEN) is an IP based network that has integrated the different emergency alert systems of the United States. Its purpose is to connect alert originators to a server which then aggregates and disseminates alerts to the proper systems. IPAWS-OPEN uses CAP.
Wireless communication (or just wireless, when the context allows) is the transfer of information ( telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves.
Choke (electronics) In electronics, a choke is an inductor used to block higher-frequency alternating currents (AC) while passing direct current (DC) and lower-frequency ACs in a circuit. A choke usually consists of a coil of insulated wire often wound on a magnetic core, although some consist of a doughnut-shaped ferrite bead strung on a wire.