Research on LLC DC-DC Transformer

Abstract:

Regulated DC-DC converter and unregulated DC-DC transformer is the basic types of DC-DC converter. Now the research is focusing on the regulated form named regulated LLC resonant DC-DC converter. Unregulated form of LLC resonant DC-DC converter named LLC resonant DC-DC transformer is studied in this paper in order to increase the practical topology of soft-switching and high-efficiency DC-DC transformer. Design method is proposed by the gain curve analyze of LLC resonant DC-DC transformer, and load characteristic of gain and efficiency of the DC-DC transformer is analyzed specializing for optimal design. A LLC resonant DC-DC transformer prototype is designed and implemented. Experimental results verify the correctness and validity of the design method and the load characteristic analysis.

• Periodical: Applied Mechanics and Materials (Volumes 303-306)
• Pages: 1913-1919
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.303-306.1913
• Online since: February 2013
• Authors: Xian Tao Zhu, Shen Chen, Ling Wu, Wei Yao
• Keywords: DC-DC Transformer, LLC Resonance, Load Characteristic, Soft Switching

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