The triode, the full name should be a semiconductor triode, also known as bipolar crystal tube and crystal triode. It is a semiconductor device that controls current control current.Used as an unproof switch is the core component of the electronic circuit.Let ’s understand the relevant information of the working principles, functions, and measurement of the triode.
9013 is a NPN type small power triode.The triode is one of the basic components of semiconductor. It has a large -current exile and is the core component of the electronic circuit.The triode is made of two PN knots close to a semiconductor substrate. Two PN knots divide the entire semiconductor into three parts. The middle part is the base area, and the two sides are the launch area and the power collection area.There are two types of triode arrangement: PNP and NPN.S9013NPN triode is mainly used: as an audio amplification and radio 1W push -pull output and switch.9013 triode pin parameter parameter: Structural NPN setting electrode: Launch pole voltage 25V collection electrode: Base pole voltage 45V transmission pole: base voltage 0.7V
The 8050 triode is a very common NPN crystal transistor. It is often seen in various amplifier circuits. The application range is wide and mainly used for high -frequency release.It can also be used as a switch circuit.8050 triode parameters: type: switch type; polarity: npn; material: silicon; maximum collector current (A): 0.5A; DC power gain: 10TO60; power consumption: 625MW; 625MW;
Triode measurement
The specific method is to adjust the multimeter to the R × 1K gear of the resistance to the resistance. First use the red table pen to put it on one foot of the triode, and use a black table to touch the other two feet of the trito tube.The feet are the base of the triode (B).If it is not found at one time, the red table pen is replaced to the other foot of the triode, and then tested twice again; if it is not found, change the red table pen and measure it twice.If you havent found it yet, use the black table pen to put it on one foot of the triode, and use a red table to test it twice to see if it is full. If it is not successful, change it.Measted up to 12 times in this way, and you can always find the base.There are only two types of triode, namely PNP type and NPN type.
The role of the triode
The crystal triode has a large current exile. The essence is that the transistor can control the large variable volume of the hage current with a slightly changing base current.This is the most basic and important feature of the triode.We call the ratio of ΔIC/ΔIB a large multiple of current exiles of crystal triode, which is represented by the symbol "β".Large current sealing is a fixed value for a triode, but with the changes in the base current changes when the triode operates.
Principle
There are two types of crystal triode (hereinafter referred to as triode) according to the material: pipes and silicon tubes.Each has two structures: NPN and PNP, but the most used are two three -pole pipes: silicon NPN and 锗 PNP.The free electronic conductivity is generated under stimulation, and P is the addition of boron replacement silicon to generate a large number of acupuncture points to conduct conductivity) I. Analysis of the principle of current amplification only for the NPN silicon triode.Called the base current IB; the current from the hagee C to the transmitting polar E is called the setting of the range IC. The direction of these two currents is flowing. ThereforeThe direction.

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