1Thottuvelil V, Wilson T, Owen H. Analysis and design of a push-pull current-feed converter[A]. EEE PESC[C].1981.192～203.
2Eric X, Jiang Y, Hua G, et al. Isolated boost circuit for power unified soft-switching scheme and soft-starting capability[A]. IEEE PESC[C]. 2000.1058～1063.
3Wang K, Lee F, Lai J. Operation principles of bi-directional full-bridge DC/DC converter with unified soft-switching scheme and soft-starting capability[A]. IEEE APEC[C]. 2000.111～118.
4Cho J, Cho G. Novel off-line zero-voltage-switching PWM AC/DC converter for direct conversion from AC line to 48VDC bus with power factor correction[A]. IEEE PESC[C]. 1993.689～695.
5Sasic B. Design oriented analysis of the two-output isolated soft-switching PFC circuit [A]. PCIM [C]. 1996.429～437.
6Clark P. Converter regulation by controlled conduction overlap[P]. US Patent: 3,938,024, 1976-02-10.
7Feng H, Xu D, Matsui M. A novel ZVT circuit for interleaving two-transistor forward converter[A]. IEEE APEC[C].2000.754～759.
