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Hello everyone, in this lesson we will learn the conduction conditions of MOS tubes

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MOS tubes can be divided into N-channel MOS tubes

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and P-channel MOS tubes according to different structures.

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The conduction conditions of these two MOS tubes are different.

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N-channel MOS tubes are high-level conductive and low-level cut-off

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P-channel MOS tubes are low-level conductive, high-level cut-off

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So who is in high level, and how much is it high?

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As we said before, the control pole of the MOS tube is the G pole

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So the high and low level refers to the voltage of the G pole.

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But how much higher must be high, and how much lower must be low?

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MOS tubes can be divided into small tubes and large tubes according to their size

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The conduction voltage of the small tube is 2.5 volts,

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and the conduction voltage of the large tube is 4.5 volts

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N-channel MOS transistor is high-level conduction

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That is, when the voltage of the G pole is greater than 4.5 volts of the S pole,

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the large tube of the N-channel can be completely turned on.

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P-channel MOS transistor low-level conduction

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That is, when the voltage of the G pole is less than 4.5 volts of the S pole,

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the large tube of the P channel can be completely turned on.