Comprehensive description of network transformer (function, factory, type, model, principle, etc.)

Hqst Yingsheng （ Hua Qiangsheng ） Electronic reading guide ： Today, we will talk about the network transformer from all aspects of the system and from all latitudes

                                              Comprehensive description of network transformer

What is the network transformer used for  

  On the network communication motherboard , stay PHY Chip and RJ45 Between connectors , There will be a small black square , This thing is called network transformer , Title “ Data mercury ”, People often call it network isolation transformer ,LAN transformer , LAN transformer , Filter, etc .

  It plays two main roles in a network device interface ;

One is to transmit data , It is the PHY The differential signal sent out is filtered by differential mode coupled coil coupling to enhance the signal , And it is coupled to the other end of the connecting network cable of different levels through the conversion of electromagnetic field ;

The second is to isolate different levels between different network devices , To prevent different voltages from damaging the equipment through network cable transmission .

In addition , Data mercury can also play a certain role in lightning protection of equipment . It is mainly used in network switches 、 Router 、 network card 、 Inside the hub , Signal coupling 、 High voltage isolation 、 impedance matching 、 Electromagnetic interference suppression, etc .

 

Network transformer production plant

Network transformer production plants are roughly divided into two types according to different main production processes ,

One is the front-end production plant , It is mainly concentrated in various inland areas with concentrated production , Such as J Or North Korea

The second is the production plant in the rear section , It mainly produces a full range of products , Strong brand management ability and quality control ability , Ru Mingpu , Jingweida , Hua Qiangsheng , Youte et al .

 

Analysis of factors influencing the price of network transformer

    （1） cost

    In practice , The price of network transformer is based on cost 、 Profits and taxes are formulated in three parts . Cost can be divided into fixed cost and variable cost . The price of a product is sometimes determined by the total cost , Sometimes it is only determined by the variable cost . The cost is sometimes divided into social average cost and enterprise individual cost . In terms of the market price of similar products in society , It is mainly affected by the average social cost . In the case of full competition , The individual cost of the enterprise is higher or lower than the average social cost , It has little impact on the price of network transformer .

    When the network transformer manufacturer sets the price , Costs should not be treated in isolation , It should be the same as the output 、 sales 、 Capital turnover and other factors should be taken into consideration . The cost factor should also be considered in combination with other factors affecting the price .

    at present , The main costs of network transformers in China include packaging plastics, copper wires and other products and labor costs . In recent years, China's main production raw materials and labor costs have increased , Industrial enterprises can only gain profits through economies of scale or high-tech products occupy high-end market share .

    （2） Supply and demand

    The price of network transformer is affected by cost , It is also affected by market demand . That is, affected by the relationship between commodity supply and demand . When the market demand for goods is greater than the supply , The price should be higher ; When the market demand for goods is less than the supply , The price should be lower . In turn, , Price changes affect the total market demand , Thus affecting sales , And then affect the realization of enterprise goals . therefore , When setting prices, enterprises must understand the impact of price changes on market demand . An indicator of this impact is the price elasticity of demand for commodities . When demand exceeds supply , The price of network transformer rises , conversely , Then decrease .

Common network transformer types

 

Common types of network transformers are ： Vehicle specification level network transformer , Medical grade network transformer , Ultra thin network transformer , Military network transformer , Gigabit network transformer , Civil network transformer , Industrial network transformer , 100m network transformer , Conventional network transformer ,5G Network transformer ,100M Network transformer ,BMS Vehicle specification level network transformer ,

Common network transformer models

H84806SP,HX82401SP,H82410SP,H82426SP,HX82463SP,H80406S,H80803D,HX82427S,HX81608SP,H80802S,HX84807S,H80601S,H81612D,H80808D,H84807SP,H86001D,H84801S,H82411S,HX81608S,H82410SHX82423S,H83601D,H84805SP,H80809D,H84802D,H82401S,H82001D,HX85001SP,H82463S,HX82423SPHX82411S,H80606S,H82411SP,HX84001S,HX82405S,H82405S,H82412S,H84803S,H87203D,H85001SPH80812D,H81606SP,H80805D,HX82412SP,H81201D,H82427S,H81613S,H81602S,HX82408S,H84801D,HX84807SP,H82426S,HX84802SP,H81602D,HX81606S,H80806D,H80811D,HX82410S,H81603SP,H80607SH87201D,H81601S,H80611S,H80604S,H82423S,HX82401S,HX84802S,H82408SP,H80610S,H82002DH80813S,H80402S,H84801SP,H84001SP,H80608S,HX82422S,H84803SP,HX84808S,H81613S,H81603S wait

Schematic diagram of network transformer

 

The schematic diagram of network transformer should start from its internal structure , Generally speaking , Network transformer is divided into T Pieces of ,K Pieces of ,K3 Pieces of .T Pieces of Transforme For transformer parts , That is, the induced voltage is induced at the secondary end of the transformer through the magnetic circuit coupling . The package size and... Of each type of network transformer will be marked on the drawings T Pieces of ,K Pieces of ,K3 Connection and circuit composition of components

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