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Wireless power transmitter cuts power consumption

Posted: 24 Aug 2011     Print Version  Bookmark and Share

Keywords:Qi-compliant  wireless power  transmitter IC 

Texas Instruments Inc. (TI) launches the bq500210, its Qi-compliant, bqTESLA wireless power transmitter IC that aids simple, cost effective and interoperable design implementation.

According to TI, the IC that is said to be 50 per cent smaller than its previous transmitter chip 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 specification 1.02 Qi-compliant wireless power solution.

The transmitter IC comes with a real-time efficiency analyser that maximises 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 7x7mm, 48pin QFN package that minimises impact to end equipment designs.

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