ST STWBC－EPQi MP－A10 15 W无线电池充电发送器解决方案

ST公司的STWBC-EP是Qi MP-A10 15 W无线电池充电发送器数字控制器,它为把功率传送到WBC使能应用的接收器(RX)提供了最灵活和有线的解决方案,VIN输入范围3V-5.5V,主要用在智能手机,平板电脑以及其它以电池为能源和采用电磁感应充电的设备.本文介绍了无线充电系统描述图,STWBC-EP主要特性,架构图以及评估板STEVAL-ISB044V1主要特性,电路图,材料清单和PCB设计图.
The STWBC-EP is the digital controller for the wireless battery charger (WBC) transmitters(TX) from STMicroelectronics optimized for Extended Power Profile (EPP) Wireless PowerConsortium (WPC) 1.2 certified applications up to 15 W.
It offers the most flexible and efficient solution for controlling the power transfer to a receiver(RX) in WBC-enabled applications such as smartphones, tablets and other battery-powereddevices that use the electromagnetic induction for recharging.
The TX is responsible for controlling the transmitting coil and generating the correct amountof power requested by the RX. The RX continuously provides the transmitter with the correctpower level requested, by modulating the transmitter carrier through the controlled resistiveor capacitive load. Generating the correct amount of power ensures the highest level of end-to-end efficiency due to reduced energy losses. It also helps maintaining a lower operationaltemperature.
The TX can adapt to the amount of energy transferred by the coil by modulating the　frequency, duty cycle or amplitude of the PWM voltage on the transmitting coil.The STWBC-EP is capable of bidirectional communication with the RX as specified by the　WPC 1.2 protocol.
STWBC-EP主要特性:
 Digital controller for wireless battery chargertransmitter
 15 W single coil inductive transmittersoptimized for:
– Cell phones and smartphones
– Tablets and phablets
– Charging accessories
 Support for Wireless Power Consortium (WPC)1.2 EPP 15 W certified applications
– Backward compatible with 5 W WPC 1.1applications
 Support...