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问题：稳压二极管的用法????

2025-04-08 02:50:36

推荐回答（1个）

回答1：

很简单，你用的6.2V稳压管击穿特性曲线陡直，属于硬击穿，当电压小于6.2V时，该管便呈截止状态，而3.6V的管子属于软击穿，此时即使电压低于3.6V，该管并未完全截止，而是处于微导通状态，此时三极管有一定基极电流流过，故该管导通，后面管子也导通，使LED点亮。

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