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Power/Alternative Energy??

Wireless power transmitter IC cuts size by half

Posted: 22 Aug 2011 ?? ?Print Version ?Bookmark and Share

Keywords:Qi-compliant? wireless power? transmitter IC?

Texas Instruments Inc. (TI) has released its bqTESLA wireless power transmitter IC that, according to the company, is 50 percent smaller than its previous transmitter chip. The bq500210 also meets Qi-compliant specification 1.02 that allows for a simple, cost effective and interoperable design implementation, TI stated.

According to TI, the IC integrates all the functionality required to safely and efficiently control wireless power transfer in a contactless charging base station. By using Wireless Power Consortium (WPC) compliant inductive power transfer, the transmitter provides power to Qi-compliant portable devices such as smart phones, gaming systems, digital cameras and Bluetooth low energy systems, as well as medical and industrial equipment. Together with the bq51013 or bq51011 receivers, the bq500210 offers a complete Qi-compliant wireless power solution.

The transmitter IC comes with a real-time efficiency analyzer that maximizes power transfer efficiency, reduces power consumption, and protects itself and the receiver from excessive power loss and heat. It also offers closed-loop power transfer control via frequency modulation for comprehensive system-level power transfer management.

The device features parasitic metal object detection that provides protection from power transfer to metal objects and overheating, along with an overload and over temperature protection, which ensures reliable operation. It is available in a small 7 x 7mm, 48-pin QFN package that minimizes impact to end equipment designs.





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