意法半导体’的电池充电器专门面向便携式和移动市场,并且通过将功耗降至最低水平和缩小占用的PCB空间而提升了新设计的价值。
这些产品具有200mA ~ 1.2A的充电电流,适于可充电化学锂离子电池。
利用非常简单的拓扑,其中的一些器件还实现了电源路径功能,提供了符合JEITA国际标准要求的即时操作和热调节。

Wireless battery charger solution optimized for wearables

The combination of ST’s STWBC-WA wireless charging-transmitter controller and STWLC04 wireless battery-charger receiver enables power transfers up to 1 W over a coil of only 11 mm in diameter on the receiver side and 20 mm on the transmitter side for slimmer form factors.
Power-transfer capability can be increased to 3 W by using larger coils and a full-bridge circuit on the transmitter side.
This fully-featured chipset supports wireless-charging for Li-ion or Li-polymer battery chemistries and provides safety mechanisms such as Foreign-Object Detection (FOD).
You can jump-start your wireless-charging design with the plug-and-play STEVAL-ISB038V1 evaluation kit which includes receiver and transmitter boards as well as a GUI to monitor system behavior and fine-tune parameters.

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