Research On Low Power Resonant Radio Energy Charging Technology

With the development of China's Intelligent City,radio energy charging technology has been paid more and more attention.Magnetic coupled resonant radio transmission technology is a new and high reliability non-contact charging technology,which has the advantages of far transmission,high transmission efficiency and high power,so it has a strong theoretical and application value for its research.In this paper,a mathematical model based on mutual inductance theory is established,and the key parameters affecting the performance of the system are obtained.A set of magnetic coupled resonant wireless charging system is designed and built.In order to improve the transmission efficiency,the frequency tracking module of the magnetic coupled resonant radio energy transmission system is designed and added.The module can make the frequency of the transmitting coil adjust in real time with the frequency of the receiving coil,so that the frequency of the two coils is always consistent.In this paper,the magnetic coupling resonant charging technology is designed systematically,and the effectiveness and practicability of the magnetic coupling resonant radio transmission technology are verified by the experimental results.