A very high density, heatsink mounted inductor for automotive applications

Author

Gerber, M. ; Ferreira, J.A. ; Hofsajer, I.W. ; Seliger, N.

Author_Institution

Fac. of Electr. Eng., Delft Univ. of Technol., Netherlands

Volume

2

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

948

Abstract

Generally, passive components and inductors in particular, contribute greatly to the overall volume of power electronic converters. These components are normally packaged individually with little concern for the overall system. For high density switching power supplies it is imperative to minimise the volume to as great an extent as possible. which implies that the passive component volume usage needs to be improved. This can be accomplished by applying suitable packaging and cooling techniques to these components. In this paper, two inductor structures finding application in a 2.1 kW synchronous automotive converter are described. The airgap placement, losses, cooling methods and thermal profiles are analysed and verified experimentally with an inductor designed for operation at 85/spl deg/C ambient.

Keywords

DC-DC power convertors; air gaps; automotive electronics; cooling; heat sinks; inductors; losses; power supplies to apparatus; thermal analysis; thermal management (packaging); 2.1 kW; 85 C; DC/DC converter; airgap placement; automotive applications; cooling; high density switching power supplies; inductor structures; inductors; losses; packaging; passive component volume; passive components; power converters; synchronous automotive converter; thermal profiles; very high density heatsink mounted inductor; Automobiles; Automotive applications; DC-DC power converters; Electronic packaging thermal management; Finite element methods; Inductors; Power electronics; Temperature; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1042672

Filename

1042672