Design of multi-turn LTCC inductors for high frequency DC/DC converters

Author

Wang, Laili ; Pei, Yunqing ; Yang, Xu ; Cui, Xizhi ; Wang, Zhaoan ; Zhao, Guopeng

Author_Institution

Electr. Eng. Dept., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2010

fDate

21-25 Feb. 2010

Firstpage

1610

Lastpage

1615

Abstract

This paper focuses on designing of multi-turn spiral inductors with multilayer parallel-connected conductors for high frequency DC/DC converters based on low temperature co-fired ceramic (LTCC) technology. Effects of conductors´ arrangements on performance of LTCC inductors are analyzed. Based on observation and analysis, a model to approximate inductance of LTCC inductors is derived. Simulation results are provided to verify accuracy of the model. At last, a prototype is fabricated and tested in a 8 MHz switching-mode buck converter.

Keywords

DC-DC power convertors; ceramics; conductors (electric); inductors; frequency 8 MHz; high frequency DC/DC converters; low temperature cofired ceramic technology; multilayer parallel-connected conductors; multiturn LTCC spiral inductors design; switching-mode buck converter; Ceramics; Conductors; DC-DC power converters; Frequency conversion; Inductance; Inductors; Nonhomogeneous media; Performance analysis; Spirals; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Conference_Location

Palm Springs, CA

ISSN

1048-2334

Print_ISBN

978-1-4244-4782-4

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2010.5433447

Filename

5433447