The Research Of Wireless Power Supply Technology For No Tail TV

Magnetic coupling resonant wireless power transmission technology has been widely focused and researched by Scholars at home and abroad as soon as it is published,Compared with the traditional wireless power transmission technology,Magnetic coupling resonant wireless power transmission technology can achieve efficient,medium and low power and long distance wireless power transmission,The use of resonant wireless power transmission technology to the TV could avoid the clutter of the wire and the hazards of spark.Magnetic coupling resonant wireless power transmission technology has been widely focused and researched by Scholars at home and abroad as soon as it is published,Compared with the traditional wireless power transmission technology,this technology can achieve efficient,medium and low power and long distance wireless power transmission,The use of resonant wireless power transmission technology to the TV could avoid the clutter of the wire and the hazards of spark.For the sake of research on wireless power transfer technology for no tail TV.In this paper uses the KVL equation to establish the circuit model which is widely applicable to Magnetic coupling resonant wireless power transmission system.At the same time,the relationship between transmission characteristics such as transmission power,transmission efficiency and transmission coil current of resonant system is deduced from the resonant frequency and transmission distance of the system,Which provides a theoretical basis for further qualitative research on resonant wireless power transmission.In order to more accurately and intuitively study the relationship between the transmission characteristics and the factors to determine the final parameters of the entire system.This paper uses Matlab to analysisthe impact from inductance,frequency,transmission distance on load power,transmission efficiency,loop current.,In the system inherent 500 KHz frequency,the transmission distance at 7cm,the load power can obtain the maximum value,with the frequency increasing,the transmission efficiency increases,with the distance increasing,the transmission efficiency decreases.At 500 KHz and 7cm,the system efficiency can achieve more than 85%.The source loop current can obtain the maximum value at 500 KHz,with the distance increasing,The source loop current increase first and then stabilize.Then,in order to improve the system power and frequency,the double-tube E-type circuit is used as the topology of power.The design of the double-tube E-type circuit and the selection of the parameters are adopted by the formula.The circuit parameters are selected by matlab,the circuit is simulated by saber.The simulation results are ideal.Finally,based on the parameters selected by Matlab and Saber,a magnetic coupling resonant system for no tail TV based on double tube E type circuit is designed.The resonant frequency is 500 KHz,the best distance is 7cm,the system power is 200 W.The experimental results show that the theoretical analysistion are correct.