 "You can now wirelessly charge your phone at a distance of 40mm")
The Wireless Power Consortium has announced that the Qi open wireless charging standard is now capable of providing full support and compatibility for longer-distance magnetic resonance technologies. Qi is the global standard for wireless power and charging. Devices are charged just by placing them on, or near, any Qi-enabled surface. Any Qi-enabled device works with any Qi charger, regardless of brand or manufacturer, making charging simple and convenient. Qi is supported by a quickly expanding list of over 100 industry-leading companies and is increasingly integrated into mobile phones, accessories, and public spaces in the US, Japan, China, and Europe.
Qi - giving energy to your smartphone
The Qi standard is a fully open and flexible platform, and as it evolves, the WPC regularly approves new transmitter designs proposed by its members. The latest addition is a transmitter design that uses magnetic resonance technology. It increases the distance - devices up to 5 Watts can be charged, from 5mm to 40mm, while remaining fully Qi compatible. This transmission distance is suitable for charging through most tables and counter tops. “The Qi standard continues to quickly grow and evolve as more transmitters and technologies become part of the specification,” said WPC Chairman Menno Treffers. “Qi is backed by over 100 companies and the standard’s flexibility allows them to offer a wide range of products with compelling features and price points. Ultimately, the consumer wins with a broad product ecosystem that’s all seamlessly compatible.”
Wireless charging stations such as those that can be built into furniture, tabletops, cars, or found in charging pads, typically use magnetic induction or magnetic resonance transmitters to send power to the portable devices they’re charging. Having the flexibility to choose from multiple transmitter designs allows companies to offer a wide range of Qi product types in consumer electronics, home appliances, furniture, automotive and other markets. These products can then be further differentiated by innovative design, components, materials, functionality, and value. Any Qi-enabled charger works with any Qi-enabled device, no matter what transmitter type. Twelve new transmitter designs are approved in the specification, including those offering more freedom in device placement, magnetic and non-magnetic device alignment, and differing power options, such as USB. Many other designs are under review, with plans for additional spatial freedom and distances, increased power levels and more options to charge multiple devices at one time.
It’s good to see that Qi has seen rapid adoption and momentum with deep industry support, significant new product launches, and global supply chain growth. The WPC recently displayed more than 80 new Qi products and prototypes at the 2012 Mobile World Congress in Barcelona, Spain. More information about Qi and the Wireless Power Consortium is available out here.
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