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Communication Dans Un Congrès Année : 2013

High Temperature, High Frequency Micro-Inductors for Low Power DC-DC Converters

Elias Haddad
  • Fonction : Auteur
Christian Martin
Cyril Buttay
Charles Joubert
Dominique Bergogne
  • Fonction : Auteur
  • PersonId : 902061

Résumé

The development of micro-inductors is still a challenge to improve the integration level of low power DC-DC converters. The temperature rise due to self-heating or higher ambient temperature represents a risk for system operation. Unfortunately, the use of a heat sink increases the size of the converter and it is more difficult to extract the heat flow dissipated from a smaller area. The increase in the allowable operating temperature offers a solution to achieve a high integration level while ensuring proper heat management. This paper presents the fabrication process of micro-planar inductors with magnetic layers (YIG). The influence of the temperature on the magnetic material and on the inductor performances is studied up to 280 °C. Fabricated micro-inductors are tested using a LCR meter in the 10 kHz to 110 MHz frequency range and over a large temperature range, from 30 °C to 280 °C.
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Dates et versions

hal-00874475 , version 1 (17-10-2013)

Identifiants

Citer

Elias Haddad, Christian Martin, Cyril Buttay, Charles Joubert, Bruno Allard, et al.. High Temperature, High Frequency Micro-Inductors for Low Power DC-DC Converters. EPE, Sep 2013, Lille, France. paper 390, ⟨10.1109/EPE.2013.6631994⟩. ⟨hal-00874475⟩
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