A low profile type high frequency transformer using a fine grained Mn-Zn ferrite

Author

Itoh, Satoru ; Yamamoto, Yutaka ; Makino, Akihiro ; Yamaguchi, Takashi ; Sasada, Ichiro

Author_Institution

Central Res. Lab., Alps Electr. Co. Ltd., Nagaoka, Japan

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1492

Abstract

A conductor-embedded-type transformer using a fine grained Mn-Zn ferrite was fabricated. The developed transformer shows a higher efficiency and a more uniform distribution of the surface temperature rise than the conventional El-core type transformer which has the same volume as the developed transformer. The high efficiency is contributed to using the fine grained Mn-Zn ferrite with low core losses at 1 MHz and also adopting the conductor-embedded-type structure, which serves the uniform flux density in the core and current density in the conductor

Keywords

ferrites; high-frequency transformers; manganese compounds; temperature distribution; transformer cores; zinc compounds; 1 MHz; Mn-Zn; conductor current density; conductor-embedded-type transformer; core losses; efficiency; fine grained Mn-Zn ferrite; low-profile high-frequency transformer; surface temperature rise distribution; uniform flux density; Core loss; Design methodology; Ferrites; Frequency; Grain size; Magnetic materials; Magnetic properties; Microstructure; Powders; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703261

Filename

703261