[原创] TI bq50121015W输出WPC v1．2无线电源发射管理方案

TI公司的bq501210是符合无线充电联盟(WPC) v1.2标准的无线电源数字控制器,集成了符合WPC的接收器无线传输功率所需的逻辑功能,最高能够传输15W功率,12V至19V输入,具有双向通信,支持对兼容接收器进行快速充电,可选择提供5W WPC低功率或15W中等功率,主要用在WPCv1.2无线充电器如Qi认证智能手机,平板电脑和其它手持设备,销售点设备和定制无线电源.本文介绍了bq501210主要特性,功能框图,系统框图以及评估板bq501210EVM-756主要特性,电路图和材料清单.

The bq501210 is a Wireless Power Consortium (WPC) v1.2 compliant wireless power digital controller that integrates the logic functions required to wirelessly transfer power to a WPC-compliant receiver with the capability of delivering up to 15 W. The bq501210 is an intelligent device that 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 powered device.

The bq501210 also manages the fault conditions associated with the power transfer and controls the operating mode status indicator. The bq501210 uses a rail voltage control scheme instead of the traditional frequency control to adjust the amount of power delivered to the receiver.
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