DEVELOPMENT OF THE MAGNETIC DEVICES REALIZING HIGH PERFORMANCE AND LOW COST SWITCHING POWER SUPPLIES

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560324
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Chiba University
• Principal Investigator: SAOTOME Hideo 千葉大学, 工学(系)研究科(研究院), 准教授 (50261938)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 鉄損 / フェライト / 動的磁気損失

Outline of Final Research Achievements

The dynamic magnetic and equivalent dielectric losses were measured under a wide range of exciting frequencies and voltages. The simulation model can reproduce the experimental data was developed. A rectangular wave voltage power supply that can output large voltage and dv/dt was manufactured for the measurements. Whether the hysteresis and dynamic magnetic losses depend on temperature was verified and it is experimentally found that the former only depends on temperature. DC-DC converter circuit simulations with the magnetic device model developed in this study were succeeded. The simulated results were compared with the experimental data and in accordance with them. It was shown that the loss of magnetic devices was precisely measured with low loss capacitors.

Free Research Field

磁気応用工学