Study of Vertical Magnetic Field Uniformity for Planar Contactless Transformer

• Main Author: 林彥甫
• Other Authors: 陳財榮 教授
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/55949661126052803843

碩士 === 國立彰化師範大學 === 電機工程學系 === 101 === Abstract For the sake of convenience and use of electricity and other security purposes, contactless energy transfer system has been used in a lot of various load, such as cell phone chargers. Because of cell-phone unmistakable wave of prosperity, therefore, this paper is to design contactless distribution of the transformer as the main objective of uniform magnetic field. Coil type is the common linear and helical bundles of two, and its magnetic field distribution were concave and convex distribution, respectively. As a result, it will cause non-uniform distribution of magnetic field. Therefore, in this thesis, linear and helical bundles are combined as hybrid coil, in order to perform a flatter distribution of the magnetic field. There are two charging platform is designed, some characteristic are measured, the magnetic field, mutual inductance quantity and power measurement. NoiseKen EPS-3000 is used to analysis and measured the hybrid coil field distribution, respectively. A Pick-up coil is designed to measuring power output, which the maximum output power is up to 1.2 W. The experimental results show the uniform magnetic field distribution is achieved. The prototype circuit could be used a reference guide. Keywords: Contactless Power Transfer, Hybrid Coil Design, Vertical Magnetic Field Uniform Distribution