1Michael T. Zhang, Milan M. Jovanovic, Fred C. Y. Lee. Analysis and evaluation of interleaving techniques in forward converters [J]. IEEE Transaction on PE, 1998, 13(4): 690-698.
2Han Feng, Dehong Xu, Lee Y S. Comparison of interleaving methods of two transistor forward converter [A]. IEEE PESC Rec.[C]. 1999:632-637.
3Coelho K D, Barbi I. A three level double-ended forward converter [A].IEEE PESC [C]. 2003: 1396-1400.
4Dharmraj V. Ghodke, K. Muralikrishnan. Zvzcs, Dual, Two-transistor forward Dc-Dc donverter with peak voltage of vin/2,high input and high power application [A]. IEEE PESC [C]. 2002: 1853-1858.
5Amol Bhinge, Ned Mohan, Ramesh Giri,et al. Series-parallel connection of DC-DC converter modules with active sharing of input voltage and load current [A]. IEEEAPEC [C]. 2002: 648-653.
6Oliveira J D S, Bissochi Jr C A, Vieira Jr r J B, et al. A lossless commutation PWM two level forward converter operating like a full-bridge [A]. IEEE APEC [C]. 2000: 334-339.
2Meyer, M. H. and J. M. Utterback. The Power of Product Family and the Dynamics of Core Capabty. Sloan Management Review [M].Spring, 1993.
3Patel, P. and K. Pavitt. Technological competencies in the world largest tlrms: characteristics, constraint and scope for managerial choice. STEEP discussion paper: SPRU, University of Sussex,Brighton, 1994.
4Prahalad, C. K. and Hamel, 1990. The Core Competence of the Corporation. Harvard Business Review [J]. 1990.