PIN二极管保护电路的双热时间常数电热建模

2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS) Pub Date : 2015-07-09 DOI:10.1109/BIOWIRELESS.2015.7152118

R. Caverly

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引用次数: 6

摘要

采用双时间常数热模型，以磁共振成像接收线圈为应用，研究了PIN二极管保护电路的温度变化。利用该模型进行的仿真表明，在应用和去除MR发射脉冲以及低占空比MR脉冲序列时，PIN二极管具有快速升温和相应冷却的双时间常数行为。这种新的电热模型使MR线圈设计师能够将封装和安装热性能作为其线圈设计的一部分。

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Dual thermal time constant electrothermal modeling of PIN diode protection circuits

A study of the temperature change in PIN diode protection circuits is presented using a dual time constant thermal model with a magnetic resonance (MR) imaging receive coil as the application. Simulations using the model show dual time constant behavior with a rapid temperature rise and corresponding cool off in the PIN diode with application and removal of an MR transmit pulse and for low duty cycle MR pulse sequences. This new electrothermal model allows MR coil designers the ability to include packaging and mounting thermal properties as part of their coil design.

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来源期刊

2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)

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