文档介绍：手机无线充电系统的设计与实现
何芹1,张佳斌1,戴丽洁2,虞致国1,顾晓峰1
(1. 轻工过程先进控制教育部重点实验室,江南大学电子工程系,江苏无锡 214122;
2. 无锡市航道管理处,江苏无锡 214031)
摘要:设计了一种基于半桥式逆变技术和磁感应耦合技术的无线充电系统,整个系统由电源模块、整流滤波模块、高频逆变模块及分离式变压器4部分组成。采用多个初级线圈并联的方式为多个手机类负载同时供电,并通过分离式变压器线圈的优化设计提高了系统性能。测试结果表明该系统克服了采用单个初级线圈充电区域不足、各个设备充电效率低的缺点,减弱了待充电设备间的相互干扰,使其充电效率相当且都能获得基本恒定的电压,具有能量传输效果好、安全方便、成本低、适用范围广等优势。关键词:无线供电;电磁感应;线圈;半桥式电路;分离式变压器
中图分类号:TN98 文献标识码:A 文章编号:1681-1070(2013)08-0044-04
Design and Implementation of Wireless Charging System for Mobile Phone
HE Qin1, ZHANG Jiabin1, DAI Lijie2, YU Zhiguo1, GU Xiaofeng1
(1. Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education),
Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China;
2.
Wuxi Waterway Management Division, Wuxi 214031, China)
Abstract: A wireless charging system has been designed and implemented based on the half-bridge inverter technology and the ic induction coupling technology. The system is mainly consisted of four parts, including the power module, the rectifier filter module, the high frequency inverter module and the isolation transformer. By using multiple primary coils in parallel, the system can provide electricity for multiple mobile phones in the same time. The system performance is also improved by optimizing the coils of the isolation transformer. Testing results indicate that the designed system can e the ings of similar charging systems using a single primary coil, such as insufficient charging area and low charging efficiency. The interference among different equipments to be charged can be reduced. The charging efficiency and voltage are almost equivalent for multiple electronic loads. The high electric energy transfer efficiency, the good safety and the low cost make this wireless charging system suitable for various applications.
Key words: wireless power supply; ic induction; coil; half-bridge circuit; isolation transformer
平板电脑等越来越多的消费类电子产品进入到人们的
1 引言
随着电子技术的快速发展,手机、数码相机、生活和工作中。