I am a person who knows a lot about electronics.

What is the principle of converting alternating current into direct current? This question for electronic enthusiasts: "It's just a pediatrician". Because this is the most basic circuit in analog circuit.

As we all know, the direction of alternating current changes with time, while the direction of direct current flows steadily from the positive electrode of power supply to the negative electrode, and from the negative electrode to the positive electrode of current in power supply.

When alternating current changes into direct current, it is necessary to keep the waveform size and direction of alternating current unchanged with time.

How to make it not change with time, then a diode is needed. The diode is characterized by unidirectional conduction, that is to say, when the current passes through the diode, it needs to flow from the anode to the cathode, otherwise the internal resistance of the diode is very large, the output current of the diode is extremely small, and the circuit cannot work. Using this characteristic of diode, we can change alternating current into direct current whose direction does not change with time and its size changes with time.

There are many kinds of AC to DC converters, including single-phase half-wave rectifier, three-phase half-wave rectifier, single-phase full-wave rectifier, three-phase full-wave rectifier, single-phase bridge rectifier and three-phase full-wave rectifier.

There are also thyristors, which are not introduced here.

Every rectification method here has every function and every effect, so I won't talk about it here.

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