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230问答网 > 二极管降压是什么意思？二极管正向降压又是什么意思？

二极管降压是什么意思？二极管正向降压又是什么意思？

2025-04-08 06:54:10

推荐回答（2个）

回答1：

一般来说，二极管的压降一般是指二极管的正向压降，锗管为0.3V,硅管为0.7V,稳压管反向运用时是它的稳压值，把二极管串于电路中使电路的电压减去它压降值得电压，达到降压的目的。

回答2：

当加入二极管的正向电压达到一定数值后（硅管0.7V，锗管0.3V）二极管导通，二极管刚导通时的电压叫导通电压，二极管导通后其两端的电压叫管压降，导通电压略小于管压降，但通常认为二者近似相等。

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