1Hu A P, Chen Z J, Hussmann S, et al. A dynamically on-off controlled resonant converter designed for coal mining battery charging applications. Power System Technology, 2002, 2:1039-1044.
2Boys J T, Green A W. Inductively coupled power trans mission concept-design and application. IPENZ Trans,1995, 22(1): 1-9.
3Wang Chwei Sen, Grant A Covic, Oskar H Stielau.Investigating an LCL load resonant inverter for indu ctive power transfer applications. IEEE Transactions on Power Electronics, 2004, 19(4): 995- 1001.