Based On The Theory Of Resonance Coupling Radio Transmission Design

In the traditional way of electrical equipment power supply, contact power supply mode like plugs and sockets is common used. By this mode, sparks are easily emitted when appliances get in contact with each other because of the frictions, and the equipments will be wore out and ageing, which affecting the safety and reliability of power supply, shorten the life length of equipments. The biggest advantage of wireless transmission is that there is no restraint of the cables. User can move appliances to any places within a certain range of distance, and it will not impair theirs use. Therefore, in the future, people are prone to wireless transmission in the power supply system.Can the design of the wireless transmission can be achieved within one meter to different load to provide the necessary electrical energy, and when using electric shutoff can independently to cut off the line to enter a dormant state. Based on the magnetic coupling resonance energy principle of the coil of base stations in the resonance state passed to accept coil, accept coil there can be multiple, connect different electrical equipment, electrical equipment including fixed position(on behalf of the TV set, refrigerator) electrical equipment and power consumption of mobile location devices(mobile phones and other portable power equipment). Base station is the mains network 220 v, 50 Hz ac voltage by transformer transformer, power frequency access PFC rectifier circuit, for the system to provide the required power and energy, the single chip microcomputer through the SPWM technology through control the opening of the rectifier circuit switch tube and shutoff control transmitter coil transmission power. The receiver divided into two parts, portable electric and immobile. The two parts can all be received at the receiving end can make the normal operation of electrical appliances.With the development of science can wireless power transmission equipment will become an indispensable equipment in human life, he will be in electric vehicles, electric vehicles, portable electronic and other industries play a large role.