This article concerns the problem of light-emitting diode (LED) compact thermal modeling. The methods currently used to generate such models either require some proprietary information from a device manufacturer or the resulting model element values that do not have any physical interpretation. The methodology proposed in this article allows the generation of compact thermal models based only on measurements of device dynamic temperature responses. The experimental procedure to generate the models is illustrated here with an example of color LEDs. The experiments demonstrated that it is possible to obtain in this way compact models that for various colors of emitted light and in different cooling conditions produce accurate simulation results. Furthermore, the compact model element values can be related to specific regions in the real structures.

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彩色 LED 的紧凑热建模--一项比较研究

本文关注的是发光二极管 (LED) 紧凑型热建模问题。当前用于生成此类模型的方法要么需要来自设备制造商的一些专有信息，要么需要没有任何物理解释的结果模型元素值。本文中提出的方法允许仅基于器件动态温度响应的测量来生成紧凑的热模型。此处以彩色 LED 为例说明了生成模型的实验过程。实验表明，以这种方式可以获得紧凑的模型，该模型对于不同颜色的发射光和在不同的冷却条件下产生准确的模拟结果。此外，紧凑模型元素值可以与真实结构中的特定区域相关。