Contactless Power Transfer(CPT)is a new type of power transmission mode, which is a new type of power transmission mode at a specific frequency, such as the electric energy or energy as a signal.Due to overcome the traditional physical contact with energy transmission of electric shock, sparks and other defects, with the advantages of safety , reliability, high effciency and flexibility, has good app;ication prospects in underdround mining, water and other harsh environmrnt or the mobile load power supply , it has been attention of researchers. In this paper , the characteristics, the research significance anf the development status of the contactless power transmission system are introduced.The theoretical analysis, the computer simulation and the circuit experiment are used.
