QI-certified transmitter delivers 15 W

The bq501210 is a Qi-certified WPC V1.2-compliant wireless power transmitter from Texas Instruments that delivers up to 15 W, while enabling 84% system efficiency with less thermal dissipation. It supports multiple fast-charging protocols and is backward-compatible with existing 5-W WPC receivers.

With integrated logic functions, this digital controller periodically pings the surrounding environment for available devices to be powered, detects if a foreign metal object is present on the charging pad, monitors all communication from the device being wirelessly powered, and adjusts power applied to the transmitter coil per feedback received from the power device. The bq501210 also manages fault conditions associated with the power transfer.