LLC resonance power transformers using magnetoplated wire

The use of magneto-plated wire (MPW) allows for reduction of winding loss component from the proximity effect. compared with a copper wire (COW). A MPW is a COW with a circumference that is plated with a magnetic thin film. In this paper, we clarify the basic characteristics and the efficiency characteristics of a transformer using a MPW and a COW. We found that the resistances of a primary coil made of COW and MPW at a frequency f = 500 kHz are 1.56 Omega and 1.12 Omega, respectively, and decreased 28%. The short circuit inductances of the COW and the MPW at a frequency f = 500 kHz are 26 mu H and 29.6 mu H, respectively, and increased 13.8%. The efficiencies of an LLC resonant converter using the COW and the MPW at a frequency f = 500 kHz are 90.2% and 92.2%, respectively, and increased 2%.ArticleINTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS. 47(3):719-727 (2015)journal articl