Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > RF/Microwave

Qi to include longer range magnetic resonance charging

Posted: 04 May 2012 ?? ?Print Version ?Bookmark and Share

Keywords:wireless power? magnetic resonance? charging station?

The Wireless Power Consortium (WPC) has disclosed that the Qi open wireless charging standard offers full support and compatibility for longer-distance magnetic resonance technologies. According to WPC, magnetic resonance technology increases the distance devices up to 5W can be charged, from 5-40mm, while remaining fully Qi compatible. This transmission distance is suitable for charging through most tables and counter tops, it added.

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 increasingly integrated into mobile phones, accessories and public spaces in the U.S., Japan, China and Europe.

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 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 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.

Article Comments - Qi to include longer range magnetic ...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top