Integrated Approach to Wireless Charging Technology, Technology Gives Mobile Devices a Boost

by Manjit Singh, Integrated Device Technology, Bodo's Power Systems, May 01 2012

Focus:
After a brief discussion about market requirements for wireless charging of mobile devices, this article describes the operating principles of a wireless power charging system like those built in accordance with the Wireless Power Consortium’s Qi standard. The article then focuses on the communications link, explaining how the receiver communicates with the transmitter. It discusses the methods used for signal transmission, modulation, encoding, contents of packets, and the control protocol. The article concludes by describing the benefits of the company’s IDTP9030 wireless power transmitter IC, which offers a single-chip transmitter solution.

What you’ll learn:

• How to understand the communications protocol in the Wireless Power Consortium’s Qi standard

Notes:
Article appears on pages 80-83 of May 2012 issue in article archive. You must register to access articles in this magazine's archive.

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