Design Of Mobile Phone Wireless Charger Based On Magnetic Resonance Technology

The current smart phone is moving towards the big screen,and its function is becoming more and more powerful,which also leads to a larger power consumption and more frequent charging.Therefore,a more convenient and convenient charging mode is required.The mobile phone wireless charging technology based on magnetic resonance can provide a new energy transmission mode,which mainly uses magnetic resonance technology to realize wireless energy transmission.Compared with the traditional wired charging,it does not need to be connected through a wire,and the unsafe charging factors such as exposure,abrasion and wire electric discharge are avoided in the process of obtaining the energy.And the mobile phone wireless charging technology based on the magnetic resonance technology has the characteristics of large transmission capacity,long distance and the like.Therefore,the mobile phone wireless charging technology based on the magnetic resonance technology has good application value and research significance.This paper first analyzes the characteristics and working principle of wireless charging transmission technology based on magnetic resonance,then analyzes the relationship between compensation structure and transmission efficiency,quality factor and transmission efficiency,and resonance frequency and transmission efficiency.Secondly,according to the theory analysis and simulation experiment,the wireless charging system of mobile phone based on magnetic resonance is designed,including signal generation,drive control,high frequency inverter,transmit receiving and rectifying circuit design.Finally,the experimental verification and efficiency analysis of the designed system are carried out,and the experimental results verify the rationality of the design.