手机近距离无线充电系统设计及仿真

Design and Simulation of Mobile Phone Short-range Wireless Charging System

无线电力传输是随着生活的需要而发展起来的一项新技术,可以有效减少有线充电的不便性.设计了一种手机近距离无线充电系统,利用松耦合变压器将市电通过整流滤波输出相应的直流电,通过高频逆变产生高频交变电流,再经过耦合变压器的作用使线圈周围产生不断变化的磁场,经过空气气隙在另一个线圈中产生感应电动势,从而实现电能无线传输.经仿真验证,系统的输出功率与手机充电的额定功率基本相同,有着较高的传输效率,证明了系统的可行性.

Wireless power transmission is a new technology developed with the needs of life,which effectively reduces the inconvenience caused by wired charging.In this design,the loose coupling transformer is used to transmit the corresponding direct current through the rectifier filter,the high-frequency alternating current is generated through the high-frequency inverter.Under the action of the coupling transformer,the changing magnetic field around the coil is generated,then through the air gap,the induced electromotive force is generated in another coil to realize the wireless transmission of electric energy.The simulation results show that the output power of the system is basically the same as the rated power of mobile phone charging,and it also has high transmission efficiency,which proves the feasibility of the system.