Systematic analysis and design of dual-switch Flyback converter

Yeong-Chang YanDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Rd., Da’an Dist., Taipei106, Taiwan, ROCCorrespondence[email protected]

Po-Jung TsengDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Rd., Da’an Dist., Taipei106, Taiwan, ROC

Huang-Jen ChiuDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Rd., Da’an Dist., Taipei106, Taiwan, ROC

Yu-Kang LoDepartment of Electronic and Computer Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Rd., Da’an Dist., Taipei106, Taiwan, ROC

Abstract

This paper presents the circuit analysis and design considerations for the dual-switch Flyback converter. The operation modes are individually analyzed and the corresponding state equations are presented accordingly. Also, the design equations for key components are derived. Good agreement can be obtained among the Pspice simulation, the experimental results and the theoretical analysis. The analytic equations are valid not only for full load and continuous conduction-mode condition, but also for critical-mode operation, which meets the design specifications.

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Systematic analysis and design of dual-switch Flyback converter

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