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实验 2 二极管、三极管的测试 PowerPoint PPT Presentation


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实验 2 二极管、三极管的测试. 一、实验目的 1. 学会用万用表判别二极管、三极管。 2. 学会用晶体管特性图示仪测试二极管、三极管的特性及有关参数。 二、实验原理. 1. 万用表的等效电路 用指针式万用表测试二极管和三极管时,都是使用万用 表的电阻档。万用表电阻档的等效电路如图 1.2.1 所示。其中, E 0 为表内电源电动势。当万用表置于 R×1 、 R×100 、

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实验 2 二极管、三极管的测试

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