Abstract
In this paper, two resistive matching networks are proposed, which can maintain the resistive transferring property under different load conditions. The high-frequency converter based on the resistive network can adequately achieve the soft-switching characteristics within a large load variation range, which helps to reduce switching losses and improve system efficiency. At the same time, a detailed design method for planar spiral inductor is described. In addition, the quality factor characteristics of different winding structures are analyzed. A 20-MHz high-frequency dc/dc converter based on the T-type matching network and circular spiral inductor is designed in this paper. The experimental results verify the advantages of the proposed resistive matching network and spiral inductor.
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