A novel half-bridge converter with integrated magnetic current doubler rectifier

作者：Lu Zengyi^*; Chen Wei; Bai Yadong; Zhu Yongfa

来源：Proceedings of the CSEE, 2011, 31(15): 15-21.

• Current doubler rectifiers
• Equivalent circuit model
• Equivalent parameters
• Flux distribution
• Half-bridge converters
• Integrated magnetics
• Leakage flux
• Magnetic currents
• Magnetic integration
• Operation theory
• Power densities
• Secondary windings
• Switching-mode

A novel current doubler rectifier with magnetic integration in switching-mode power converter was proposed to improve efficiency and power density. With the operation theory of half-bridge converter, the AC and DC fluxes in the integrated magnetics were discussed in detailed. The equivalent circuit model is derived and the equivalent parameter measurement is evaluated. Two solutions to realize secondary windings with one turn can obtain the lowest winding length and eliminate the leakage flux effect. The prototype was built to validate the feasibility. Finally, the development mechanism and features among different integrated magnetics were summarized.

• 出版日期2011-5-25
• 单位福州大学