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发明公开
CN102207534A 利用pn结测量LED热阻的方法及其装置 失效 - 权利终止

利用pn结测量LED热阻的方法及其装置
摘要：
本发明公开了一种利用pn结测量LED热阻的方法及其装置。利用pn结测量LED热阻的方法，所述LED为大功率LED，其特征在于：在大功率LED中，包括一个用于测量大功率LED的芯的温度的肖特基二极管，肖特基二极管与大功率LED同在一个器件中；大功率LED组装成灯具时，利用热电偶测量散热板的温度，利用肖特基二极管测量大功率LED的芯的温度，然后通过分析计算获得灯具的温度分布及LED热阻。本发明可用于精确测量LED热阻。
摘要（英）：

The invention discloses a method and a device for measuring thermal resistance of a light emitting diode (LED) by a pn junction. In the method for measuring the LED thermal resistance by the pn junction, the LED is a high-power LED; and the method is characterized in that: the high-power LED comprises a schottky diode for measuring the temperature of a core of the high-power LED, and the schottkydiode and the high-power LED are in the same device; and when the high-power LED is assembled into a lamp, the temperature of a radiating plate is measured by a thermoelectric couple, the temperatureof the core of the high-power LED is measured by the schottky diode, and the temperature attribution of the lamp and the thermal resistance of the LED are obtained through analysis and calculation. The method and the device can be used for precisely measuring the thermal resistance of the LED.

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