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Hello everyone, in this lesson we will talk about the code name of the diode

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A diode can be represented by a circuit symbol

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According to the different types of diodes, the circuit symbols are also different

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The most common is the ordinary diode

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The circuit symbol of an ordinary diode actually reflects the unidirectional conductivity of the diode very well.

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Current can only flow from positive to negative,

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and it will be blocked when it flows from negative to positive

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In addition to ordinary diodes, there are Zener diodes, ESD diodes and light-emitting diodes, etc.

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Their circuit symbols are all different

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Diodes can also be represented by letters

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Ordinary diodes are generally represented by the letter D

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When this diode is used in a power supply circuit, it can also be represented by PD

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Light-emitting diodes are generally represented by LEDs