What are the differences between IGBT single tube and MOS tube?

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2022-03-17 144

What is the difference between IGBT and MOS?

IGBT

How to distinguish IGBT single tube from MOS tube? We can analyze it from the following three points.

1. structurally, taking n-type channel as an example, the difference between IGBT and MOS tube is that the substrate of MOS tube is n-type and that of IGBT is p-type.

2. In principle, IGBT is equivalent to the combination of MOS tube and bipolar device. Hole injection in the back side of P-type layer reduces the on-resistance of the device, but it also introduces some problems such as tailing current.

3. From the perspective of products, IGBT is generally used for high-voltage power products, ranging from 600 volts to several thousand volts; The application voltage of MOS tube is relatively low, from 10V to 1000V.

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