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51问答网 > 如何区分IGBT是N型还是P型？有P型的IGBT么？最好有图片哈~跪求高手解答！

如何区分IGBT是N型还是P型？有P型的IGBT么？最好有图片哈~跪求高手解答！

2025-04-07 14:49:47

推荐回答（2个）

回答1：

IGBT不是mosfet管，没有N沟道和P沟道之分，IGBT是绝缘栅双极晶体管的简称，既有MOSFET管的电压控制开关、开关速度快的特点，又有功率晶体管的可导通电流大，导通压降小的特点，集合了这MOSFET管和BJT管的优点。

回答2：

IGBT是三端电力电子器件，具有栅极G、集电极C、发射极E，它比MOSFET多一层𝑃+注入区，因而形成一个面积较大的𝑃+N结𝐽1，这样使得IGBT导通时由𝑃+注入区向𝑁−漂移区发射少子，从而实现对漂移区电导率进行调制，使得IGBT具有很强的通流能力。

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