Ny transmitter chip til wireless opladestationer
Texas Instruments er klar med ny transmitter-kredsløb til Qi-baserede wireless opladestationer med faciliteter til detektion af fremmede objekter (in english).
Texas Instruments (TI) has introduced its next-generation wireless power transfer circuit with foreign object detection that will allow designers to bring to market 3-coil, 5-V and 12-V A6 charging stations compliant with the Wireless Power Consortium (WPC) 1.1 specification. The bq500412 controller, which is shipping in volume production, requires half the components compared to other solutions. To order samples and a development kit, visit:Giving smartphone users an improved charging experience, the bq500412 integrates all functions required to control wireless power delivery from the charging station to a receiver circuit used in a Qi-enabled smartphone or other device.
In addition to 12-V charging pads, the circuit can be combined with a boost converter to create a 3-coil, 5-V USB charging pad, while taking advantage of a Dynamic Power LimitTM feature to ensure quality operation independent of the power capability of the port. The bq500412 also supports an enhanced foreign object detection scheme, which makes it easier for all designers to implement the requirements of the WPC1.1 specification.
http://www.ti.com/bq500412-pr-eu
