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High Temperature, High Frequency Micro-Inductors for Low Power DC-DC Converters
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| Author(s) |
Christian MARTIN, Elias HADDAD, Cyril BUTTAY, Charles JOUBERT, Bruno ALLARD, Dominique BERGOGNE |
| Abstract |
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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| Filename: | 0390-epe2013-full-16220510.pdf |
| Filesize: | 2.658 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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