作　　者： ; ; ; ; ; ; ;

机构地区： 厦门大学

出　　处： 《实验技术与管理》 2013年第7期29-32,共4页

摘　　要： 热阻是衡量LED器件/模块散热性能的重要参数。针对大电压LED器件/模块,实验采用T3Ster/Teraled热光参数测试仪,利用外部电压源供电方法,实现了对超过仪器量程的大电压LED器件的热阻测试。该方法拓展了热阻测试仪的常规测量范围,使正向电压大于15V的LED器件/模块的热阻测试成为可能。 Thermal resistance is a key parameter for evaluating thermal performance of LED device/module. Reliable measurement of thermal resistance becomes extremely important. Aiming at that the high voltage LED device/module has been applied popularly in lighting, an improved thermal resistance measurement method for LED device/module with forward voltage larger than 15V is achieved by applying external voltage soarce to the T3Ster/Teraled. The result shows that the external voltage source method can effectively expand the testing range of thermal resistance tester.

关 键 词： 热阻测量 阈值电压 电压源

领　　域： [电子电信]