无线充电发射端的Qi协议控制器设计与实现  

Design and implementation of Qi protocol controller for wireless charging and transmitting terminal

作　　者：霍倩楠 焦继业 任朝辉 焦宽祥 HUO Qiannan;JIAO Jiye;REN Zhaohui;JIAO Kuanxiang(School of Computing,Xi’an University of Posts and Telecommunications,Xi’an 710121,China;School of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]西安邮电大学计算机学院,陕西西安710121 [2]西安邮电大学电子工程学院,陕西西安710121

出　　处：《电子设计工程》2022年第8期1-5,共5页Electronic Design Engineering

基　　金：国家自然科学基金项目(61874087)。

摘　　要：Qi协议是目前应用最广泛的无线充电功率传输标准,随着无线充电的普及,无线充电接收端的产品逐渐多样化,因此,对无线充电发射端的兼容性要求也越来越高。为了增强无线充电发射端的灵活性和普适性,文中重点研究Qi v1.2.4协议中无线充电发射端接收与发送的数据包格式,采用自顶向下的模块方法设计实现Qi协议控制器来控制数据通信,其中包括Qi接收器和Qi发送器等。通过搭建外围解调电路,使用Qi无线充电器专用测试仪并结合FPGA对其验证,实验表明该设计可以实现数据包的实时接收与发送,同时,在50 MHz时钟下,与Cortex M0软件解码方式对比,该设计的执行时间减小了90%,准确性高达100%,可广泛应用于兼容Qi协议的无线充电发射端方案中。Qi protocol is currently the most widely used wireless charging power transmission standard.With the popularization of wireless charging,the products at the receiver end of wireless charging are gradually diversified.Therefore,the compatibility requirements for the wireless charging and transmitting terminal are becoming higher and higher.In order to enhance the flexibility and universality of wireless charging and transmitting terminal,this paper focuses on the study of the packet format received and sent by wireless charging and transmitting terminal in Qi v1.2.4 protocol,and adopts the top-down module method to design and implement the Qi protocol controller to control the data communication,including Qi receiver and Qi transmitter.Through constructing peripheral demodulation circuit,using Qi wireless charger dedicated tester and combined with FPGA validation to its,experiments show that this design can realize real-time receiving and sending packets,at the same time,under 50 MHz clock,compared with the Cortex M0 software decoding method,the design and the execution time of the reduced 90%,the accuracy is as high as 100%,can be widely used in compatible with Qi protocol wireless charging and transmitting terminal scheme.

关 键 词：无线充电发射端 Qi协议 通信 控制器 FPGA 

分 类 号：TN492[电子电信—微电子学与固体电子学]