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Chapter 554 Standing on the Waves of Great Changes in the Great Era (Triple in One)

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    "Xiaozi, what are you talking nonsense about?" Chen Qiang was very uncomfortable, and felt that he was really useless as a father: "I know you want to help the family take some responsibilities, and you don't want me to be in the factory"

    Chen Qiang poured the wine on the table into his stomach, "But this matter is beyond your ability. CNC machine tools are high-tech products or imported from Germany. Your computer teacher may not know it, but you will?"

    Chen Qiang said: "You are about to take the college entrance examination, so you don't have to worry about it, I know how to deal with it."

    That's what Chen Qiang said. In fact, he really has no good solution. Even if he finally takes the responsibility for the burning of the machine tool away, the job in the factory will definitely be lost.  .

    Chen Qiang, who was depressed in his heart, continued to drink in suspense. The powerlessness and incompetence of the middle-aged man made the family feel oppressed and breathless.

    Chen Xiao is not a child, so he can understand Chen Qiang's final dignity as a father in front of his children.

    He stopped talking and buried himself in eating.

    After dinner, Chen Xiao returned to the room.

    He took out the motherboard of the CNC machine tool and studied it in detail.

    This batch of machines was produced by Germany's DMG in 1995. The size of the motherboard is much larger than that of later generations, and the motherboard of the machine tool is still matched with a dedicated chip.

    This type of special-purpose chip motherboard will be eliminated in the next few years. After Xia Guo's CNC machine tools use general-purpose chips, they have embarked on a path from imitation to innovation with the development of national integrated circuits.

    Chen Xiao found that most of the motherboards were burned, and it was very difficult to repair the original motherboards.

    I looked at several motherboards in a row, and they all had the same problem. The huge current passing through the motherboard instantly caused many capacitors to be damaged, and some components generated high temperature instantly, which directly melted some components of the motherboard.

    It stands to reason that the machine tool uses a three-phase 380v voltage, and the neutral wire of the control transformer needs to be grounded, but Chen Xiao went to the factory today to seethe wiring only has a random word.

    In other words, there is a question mark whether the machine tool has a ground wire or not.

    The main board cannot be repaired, but it can be re-produced.

    With the current Xiaguo technology, it is absolutely impossible to reproduce a motherboard according to DMG's signal.

    However, Chen Xiao can completely change the circuit, make the main board a little bigger, and make the precisely designed circuits a little simpler but more in number, as long as the machine tool can run automatically.

    Chen Xiao made the circuit as simple as possible, and it doesn't matter if there are more circuits, so the factories in Jiangcheng or Jiangzhou should be able to produce.

    In Xiaguo in 1999, because of the rise of the vcd, dvd industry and the CNC machine tool industry, there were already many integrated circuit foundry factories, but there was still a significant gap in level compared with overseas ones.

    It is very difficult for these factories to design an integrated circuit, but some simple integrated circuits can still be made by letting them follow suit.

    Chen Xiao took out his workbook and began to design the main board of the machine tool.

    From simple to complex, Chen Xiao designed a total of three drawings. If the production is based on the drawings that are the easiest to produce but have the most circuits, then these more than ten CNC machine tools need to be patched with a "big belly" under the machine.  The location of the main board is definitely not fit.

    Although Chen Xiao's integrated circuit diagram is bulky, its principle is simple and easy to maintain.

    After finishing all this work, it was already one o'clock in the night.

    The lights in Chen Qiang and Lin Hui's rooms are still on, and they will definitely not be able to sleep tonight.

    Chen Xiao can't explain anything to the two of them now, so they can only worry about it for a few days, and when they find a factory here to process the motherboard, the matter will be solved.

    The next day was the last day of the first examination.

    ? In the morning it is science and comprehensive, in the afternoon it is English.

    Li Zong didn't have much to say about Chen Xiao's strengths.

    English was difficult for Chen Xiao in the past, but it is much easier for Chen Xiao now.

    Jiang Wei and Deng Chao continued to ask Chen Xiao to send the answer, of course Chen Xiao was willing.

    On the contrary, when Su Qiao talked to Shen Wei before the English test, she despisedWe can find a way to design the motherboard to be smaller and take up less space.  "

    If Delonghi wants to survive and gain a greater voice, it must go from foundry to innovation.

    Many vcds on the market are big-bellied, very large and heavy.

    If you can reduce the size of the vcd and make the appearance thinner and more beautiful, it will definitely stand out.

    Wang Xiang and Li Delong often think that if Delong produces VCDs by itself, it may not be inferior to Aiduo, Pioneer and other brands.

    If Chen Xiao is asked to design a vcd circuit diagram by hand, Chen Xiao may have to spend some time thinking about it, but if he is asked to modify the circuit diagram of the main board, it will be relatively simple.

    Just design multi-level integrated circuits.

    It sounds simple, but it is actually quite difficult in this era when there are few computer design software and lack of technical force.

    And without computer modeling and running circuits, many problems cannot be found at all.

    However, Chen Xiao is too familiar with the problems that some common multi-level integrated circuits will encounter. He also knows exactly where to lay out and what problems to avoid.

    Moreover, the designed circuit diagram does not need to be repeatedly produced, modified, reproduced and modified. Basically, it can be done at one time, which greatly saves everyone's time and energy costs.
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