基于STM32无线充电电路的设计与研究

发布时间：2018-11-25 06:58

【摘要】：随着手机的普及、电动汽车和无线电技术的不断发展,电子产品也越来越丰富;对各种电池的充电速度和工作时间提出越来越高的要求;由于目前电池的电量工作时间较短、快速充电、远距离充电等问题不能解决,从而给人们的生活带来了极大的不便,特别限制了电动汽车工业的发展;所以针对电池的充电问题,文章设计了一款电磁谐振式无线充电器;该充电器采用STM32超低功耗单片机作为无线充电电路的主控制器,通过对发射信号频率的控制,使处于异地的输出电路工作在谐振状态,实现最大功率无线传送,接收端线圈输出再经过整流、稳压、滤波后输出+5V电压,最终经过智能控制电路给便携式设备中的锂电池充电;并通过指示灯显示电池是否正在充电、充满、电池反接和电源欠压等状态;该设计的充电设备具有使用灵活、方便、工作可靠,电能利用率高,无线充电距离远等特点,同时具有过压、过流保护,具有广泛的应用价值。
[Abstract]:With the popularity of mobile phones and the continuous development of electric vehicles and radio technology, electronic products are becoming more and more abundant, and the charging speed and working time of various batteries are becoming more and more demanding. Due to the short working time of battery, rapid charging, long-distance charging and other problems can not be solved, which brings great inconvenience to people's life, especially limits the development of electric vehicle industry. Therefore, aiming at the charging problem of the battery, this paper designs an electromagnetic resonance wireless charger. The charger uses STM32 ultra-low power MCU as the main controller of the wireless charging circuit. By controlling the frequency of the transmitting signal, the output circuit in different places can work in the resonant state and realize the maximum power wireless transmission. The coil output at the receiving end is then rectified, voltage stabilized, filtered and output 5V voltage. Finally, the lithium battery in the portable equipment is charged by intelligent control circuit. And show whether the battery is charging, full, battery reverse connection and power under-voltage through the indicator. The designed charging equipment has the advantages of flexible use, convenient operation, reliable operation, high utilization of electric energy, long distance of wireless charging and so on. It also has overvoltage and over-current protection, and has wide application value.
【作者单位】：南京林业大学;
【分类号】：TM910.6

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