Chinese entertainment for engineering students

"Wang Xu, why don't you take advantage of it? It was you who proposed the supercomputing project." Professor Yan finally saw Wang Xu again after a few days and felt a little headache.

"It seems we have just started. Is there something wrong?" Wang Xu looked at Professor Yan with a puzzled expression. He originally wanted to ask his roommates how the circuit design was going. It has been several months. It should be bearing fruit.

Before, well, Wang Xu admitted that he had forgotten about it a long time ago. A few years ago, several of my roommates were extremely busy making up classes, taking exams, and doing various chores.

It wasn't until the new year that I thought of designing a circuit specifically for power amplifiers. However, with various supplementary lessons in the past few months, the abilities of these roommates have also made great progress.

I have discussed it with Wang Xu several times, and recently I have been designing a circuit under the guidance of my instructor. It is the power amplification circuit at different powers that Wang Xu wants.

This time Wang Xu came here because it was agreed that he would have a summary meeting today, but as soon as he showed up, he was called by Teacher Yan.

"It didn't go very smoothly. Although the content you gave was detailed, the design was too broad. It was okay for everyone to deal with their own part, but in the end, the coordination between them was a bit confusing.

It is said that I should be responsible for this matter, but I haven't understood everything you said. After all, you are still the chief scientist. Can you arrange a Q\u0026A? I am asking for advice humbly. "Professor Yan's words were no longer polite, almost pleading.

"No problem, I was negligent. Starting next Monday, I will come to your place. Let's sort it out together." Wang Xu suddenly felt guilty.

I throw out too many things. For me, it is just saying what I know. But for these project leaders, this is a matter of life and fortune.

After all, Professor Yan was Wang Xu's mentor. For such a long time, not only did he not put on airs, he even talked politely and discussed matters.

Wang Xu also hopes to graduate from this project with a PhD, so he really needs to make good arrangements.

But today, I still have to continue discussing the power amplifier with my classmates.

These things are actually prepared for future companies, the ones Zhou Feng and his family invested in. In the past few months, they have been collecting various information in Xinjiekou.

I made a lot of friends and learned a lot of business information. Their factory has been opened in Suzhou, where they are now making mass-produced speakers.

The finished product is now available, and their family is quite successful. Suzhou has always encouraged private industry, so they successfully qualified for the Canton Fair next month.

Moreover, as the most recommended electronic products in Suzhou, the active speaker series are mature solutions given by Wang Xu, so they are very confident that they can shine at the Canton Fair.

Although many parts still have to be imported, as long as they can successfully obtain export orders at the Canton Fair, Suzhou will help solve the foreign exchange requirements for the parts.

However, the effect of passive home speakers has always been unsatisfactory because there has never been a matching power amplifier and tuning.

It's far inferior to the amplifier Wang Xu made. Besides, Wang Xu's amplifier is a tube amp, not suitable for ordinary families, and it's not authorized for them.

Therefore, they are in urgent need of a series of power amplifiers and tuners that can be mass-produced and specially optimized according to the speakers they produce.

Therefore, they are also here for today’s discussion.

Today's speaker is of course not Wang Xu, but a few roommates. Zhou Feng's father and several relatives are sponsors, and they reimburse the consumables for the experiment free of charge.

These are all trivial matters. After all, they are in a hurry than anyone else. Some electronic components only cost a few dollars.

Wang Xu sat below, listening to several roommates come up with their own design plans. Of course, several instructors from the automation department would also be present.

It was all agreed upon in advance. Although most of the work was done by a few roommates, and a few teachers provided guidance and guidance, the final intellectual property rights included their profits.

Therefore, it can be said that several teachers are conscientious and have trained several roommates almost step by step.

Of course, they also personally took action to solve some problems. What Wang Xu saw today was the result of several changes.

Experimental products have already been released. Apart from not having a casing and looking very crude, various functions have been tested and perfected.

Wang Xu's main job today is to look at pictures and listen to sounds.

Look at their circuit diagrams, listen to their explanation of the circuit diagram ideas, and then listen to the effect of the finished product, what kind of speakers it matches, and what the effect is.

The entire seminar is not so much a discussion as a defense. Wang Xu is the project initiator and the project acceptance person, and he is here to listen to the acceptance defense.

The four people designed a set of products each, all using transistors, but the corresponding speakers ranged from small bookshelf, to vertical, to the largest box type, matching and adjusting the series of speakers given by Wang Xu.

Wang Xu will give a judgment today, whose product has good effect and whose effect is bad, what is good and what is bad.

The power amplifier is also a system engineering, and it is particularly easy to see-saw. This frequency band is excellent, but there are many cases where the hips are stretched in that frequency band.

The entire meeting lasted three hours. Wang Xu carefully evaluated the pros and cons of the four groups of products and gave corresponding scores.

In the end, in the test of small and medium-sized speakers, Hu Ershui's work, which has always had a low appearance rate, won the championship.

Although it did not get the highest score in any one frequency band, it had the highest overall score. The very exquisite balance allowed a pair of small bookshelf boxes to show very good performance.

When it comes to pushing big boxes, it is the work of the boss Zhan Wenbo that comes out on top. The characteristics of this amplifier are that of a type with equally outstanding advantages and disadvantages. It performs very well in the bass range, being heavy, stable, and crisp. No shortage.

However, the performance in the high range is mediocre. How should I put it, it feels a bit fuzzy, as if it is covered with a layer of cloth.

This time Wang Xu decided to improve two power amplifiers based on the designs of Laoda and Ershui. Available as high power and low power options.

It is obvious that the works of Zeng Yandong and Zhou Feng are slightly inferior. Wang Xu knows the strength of these two brothers. It is probably because various contact work consumes a lot of energy, so he did not spend too much thought here.

This is normal. People only have so much energy. If they lose it, they will gain it. As long as it grows, who knows which cloud will have rain.

Both of them have their own positions, and they are obviously more suitable for various communication and integration positions, so there is no problem in developing in that direction.

Moreover, the talents of the two are definitely not bad. Although their works this time are not outstanding, they have their own highlights. Finally, Wang Xu adjusted and polished it, and the final results of these people are worth looking forward to.

——

(besides)