风扇控制的天花板安装平板电视显示器

Twentieth Annual IEEE Semiconductor Thermal Measurement and Management Symposium (IEEE Cat. No.04CH37545) Pub Date : 2004-03-09 DOI:10.1109/STHERM.2004.1291316

I. Luiten

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引用次数: 6

摘要

讨论了吊顶式平板电视显示器风扇控制电路的散热设计。使用风扇控制的目的是将平面电视显示器的噪音降低到适合客厅使用的水平。此外，该电路还用作过热保护措施。从要求分析可知，风机控制电路需要一定的滞回量以保持稳定。技术和终端客户的要求转化为风扇控制电路的所谓稳健设计要求。鲁棒性要求考虑到元件公差对电路功能的影响。利用“蒙特卡罗”模拟，将几种电路设计中的扩展作为元件公差的函数进行评估。最后选择了最佳设计方案，并在气候室内对电路进行了测试。最后的测试表明，设计是成功的:没有振荡发生。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fan control for a ceiling mount flat TV monitor

The thermal design of a fan control circuit for use in a ceiling mount Flat TV monitor is discussed. The objective of using the fan control is to lower the noise from the Flat TV monitor to a level that is suitable for living room use. Furthermore the circuit is used as a protective measure for over temperatures. From an analysis of the requirements it follows that the fan control circuit needs a certain amount of hysteresis to remain stable. Technical and end-customer requirements are translated into so-called robust design requirements for the fan control circuit. Robust requirements take the effect of component tolerances on the functioning of the circuit into account. The spread in several circuit designs is evaluated as a function of component tolerances, using "Monte Carlo" simulations. Finally, the best design is chosen and the circuit is tested in the climatic room. The final test shows that the design is successful: no oscillations occur.

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来源期刊

Twentieth Annual IEEE Semiconductor Thermal Measurement and Management Symposium (IEEE Cat. No.04CH37545)

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