ST STWBC支持Qi A11拓扑无线电池充电器发送方案
ST公司的STWBC是用于无线电池充电器发送器的数字控制器,支持Qi A11拓扑,提供最灵活和效率的解决方案,用来给无线充电器接收器发送的功率进行控制,支持5V 5W的功率,可以用于采用电磁线圈充电的手机,可穿戴和其它电池供电的设备.本文介绍了STWBC主要特性,框图和无线充电系统框图,以及评估板STEVAL-ISB027V1主要特性,框图,电路图,材料清单和PCB设计图.
Digital controller for wireless battery charger transmitters supporting Qi A11 topology The STWBC is the digital controller for wireless battery charger (WBC) transmitters (TX) from STMicroelectronics, offering the most flexible and efficient solution for controlling power transfer to a receiver (RX) in WBC-enabled applications such as phones, wearables,and other battery powered devices that use electromagnetic induction for recharging.
As a member of the Qi Wireless Power Consortium and the PMA (Power Matters Alliance),ST ensures full compatibility with these leading wireless charging protocols and holds certification for the Qi 1.1.2 A11 standard.
The STWBC performs all the functions for transmitter control: thanks to the internal 96 MHzclock and supporting both half-bridge and full bridge topologies, it is able to precisely controlthe amount of transmitted power to match the requirements of the receiving unit in terms ofmaximizing the efficiency of the power transfer...
