Chapter 239 GTO

GTO, the word in Secretary Lu's mouth certainly does not mean GreatTeacherOnizuka, but the meaning of GateTurn-Off Thyristor, which can turn off thyristor.

The former is the great teacher Hideyoshi Onizuka, and the latter is an extremely important power electronic device used in power engineering.

Needless to say, the GTO can be thought of as an electric switch that can be opened and closed instantaneously. It's just that it's not the human finger that controls it, it's the electrical signal.

By loading high and low voltages at the gate stage of the thyristor, the turn-off or turn-on of the thyristor can be controlled.

This characteristic of GTO makes it able to be used in the fields of chopper speed regulation, frequency conversion speed regulation, inverter power supply, etc., and it can be said that without it, there will be no "big power grid" in modern society.

It is very simple that in order to be able to work normally, the power grid of each power station transmits large currents to the substation, and if there is no GTO equipment that realizes the power conversion and control circuit, the power grid will be lit into a torch in minutes.

This shows the importance of GTO and the entire family of power electronics in which it is located in human society, and their wide range of uses.

However, although the GTO is more advanced than ordinary thyristors, it still has unsatisfactory aspects. For example, the switching speed and frequency are low, the power required to drive the switch is high, and the circuit to realize the switch is too complex.

As a result, GTO is obviously a consumer product, but it has become a luxury product in terms of cost. The construction of power grids is constrained by power electronic devices, which makes it impossible to become intelligent and large-scale. It has become a difficult point in the application of electric energy.

And the leadership that Secretary Lu serves. Prior to this, he received a report from Hu Wenhai through the Chinese Academy of Sciences system.

in the report. He reported on his thoughts and progress in approaching Motorola to build the first modern wafer fab in China. In addition, it is to prepare an epoch-making product for its future wafer fab, that is, IGCT.

Before Hu Wenhai's rebirth, the IGBT produced in BYD's Ningbo wafer factory was only one letter different, and the meaning was almost the same.

IGCT, integrated gate commutation thyristor. IGBT, Insulated Gate Bipolar Transistor. Both are power switching electronics. Coupled with GTO technology, the three can be said to be in the same vein. For a brief comparison, GTO is a low-frequency, low-speed, but ultra-high-current power switch driven by high voltage, IGCT is a high-frequency, high-speed, high-current power switch driven by medium voltage, and IGBT is a high-frequency, high-speed, high-current power switch driven by low voltage.

The difference may not seem like much, but in practice it is very different. The smallest GTO device is the size of a box, which undoubtedly severely limits the range of applications for power electronics in the era when there were no IGBTs or IGCTs. IGCT, on the other hand, is reduced to a box size, which undoubtedly greatly reduces the cost of power electronics.

And what about IGBTs? Don't look for it, pick up your phone. The IGBT is hiding there, and the small one can be crammed into the small space of the mobile phone.

There are no IGBTs. There would be no modern electronic devices, this statement is absolutely true. IGBT gives humans the means to intelligently control electricity, from the power control of mobile phones, to the power control module of electric vehicles, to the automatic control core of China's high-speed railway.

Modern society operates on electricity, and IGBT is the reins of the wild horse of electricity.

BYD took the lead in making a breakthrough in the IGBT at the electric vehicle level, and in the following years, Zhuzhou CSR made a breakthrough in the IGBT at the high-speed rail bullet train level. These two breakthroughs are two of the countless times that China has broken the monopoly blockade of foreign advanced technology. Hu Wenhai is a little proud of this, because he has made some contributions to China's IGBT independence.

Now that he has been reborn, of course, he will not forget the big killer of IGBT. It's just that the technical requirements of IGBT are too high, and he hasn't even built a wafer factory, so how can he run without learning how to walk? So he remembered IGCT, this "Zhou Yu" who was born at the wrong time.

IGCT is truly born at the wrong time, and it is both born and bright. When IGCT was proposed in 1997, IGBT also made a breakthrough. In the face of the comprehensive advantage of IGBT, only half a step difference IGCT has persisted for 11 years, but IGBT has become a general trend by virtue of the advantages of low-voltage drive and continuous reduction of chip cost.

Eventually, the IGCT was replaced by the IGBT and became an unremarkable piece of history.

If IGCT technology can be developed in the 80s, Hu Wenhai has a foundation for many big toys to be realized. To put it simply, the car racing competition, which is completely monopolized by Europe and the United States, will be divided into two parts in the future. The fuel burner and the electricity should be raced separately, why? The electric car can accelerate to 100 kilometers in 2 seconds, and the gasoline powered car you try? In the end, the gasoline car race simply flipped the table and did not play with the electric car!

Hu Wenhai really wants to quickly get the IGBT drum out, and when the time comes, he will drive to the rally arena and slap Mercedes-Benz, BMW, and Toyota in the face one by one.

"Mr. Hu, Mr. Hu?" Secretary Lu called softly twice, which made Hu Wenhai, who had a ** smile on his face, come back to his senses.

"Ahem. Hu Wenhai pretended to cough twice, changed his serious face, and said in a deep voice: "Yes, I have a technology in my hand that can replace and upgrade most of the GTO devices, and improve the performance of the thyristor switch by a considerable margin." But first of all, I want to know, can I get state support for this technology?"

"Mr. Hu, what kind of support do you want from the state?" asked Secretary Lu with some caution.

Hu Wenhai spread his hands and said with a smile: "The simplest point, if I take out the technology and finally pass the expert review, can the construction market of the State Grid be opened to me?"

"It's not that I cherish myself, I think Secretary Lu should also know what level of development of China's power electronic devices is. After I took out the technology. It is impossible for foreign businesses to remain indifferent. Will definitely follow up with the development. Whether it can win in the market competition. The key lies in the development progress of subsequent supporting technologies. This requires enterprises to reinvest the profits of the previous products. However, if Xinke can't get the domestic market, it will not be able to have enough profits to compete with other international companies. ”

"Rather than ending up cheaper than foreign manufacturers, I think it's better not to take out this technology of mine. ”

Hu Wenhai's words are reasonable, and Secretary Lu is really hard to refute for a while. What's more, he has followed the leaders from the power department to his current position, and it can be said that he is very familiar with China's power construction.

There is no need to improve performance, as long as the cost of GTO devices can be greatly reduced, this is enough to form a fatal attraction to the Ministry of Electric Power Industry.

But the problem is not nothing, the power system and other monopolies in China. For example, railways, telecommunications, petrochemicals, tobacco and other industries have a problem, closed.

The mountains and circles in the system are everywhere, and the needles outside the system cannot be inserted into the water and splashed. Hu Wenhai's technology can really replace the GTO, so the original production ......

Wait, Hu Wenhai vaguely remembered that in the 80s, there was no GTO in China, and the power adjustment used thyristors, that is, simple thyristors, without switching.

What about the equipment upgrades and technical changes caused by this new technology of cross-generational upgrading, resulting in internal instability? A closed system like electricity instinctively hates any change. Simply put, it's one word. Without realistic motivation and pressure, there will be no initiative to generate demand for progress.

The only way to break this closure is pressure from above, which is why Hu Wenhai found the leader behind Secretary Lu. This leader from the power system will undoubtedly play a decisive role in whether he can take this piece of cake.

Secretary Lu also spread his hands helplessly, but said with a wry smile: "What Mr. Hu said is not unreasonable, but I can't do this kind of thing." I'm here today, and you should know that one is to understand the situation, and the other is to upload and release. If you have anything to say or what conditions you want to mention, you can tell me. As for me, I can't be the master now, but I will definitely convey your words to the chief as they are. ”

Hu Wenhai nodded, he didn't plan to get an answer from Secretary Lu. First show your attitude and strength, and then wait for your superiors to coordinate the division of interests within the system. When they re-determine the distribution plan of the cake, they can comfortably take their own piece, which is the wisest choice.

"That's good, too. Hu Wenhai groaned, and then said: "Xinke has never been a one-man enterprise, the core part of the new technology can be provided by me, raw materials, assembly, product packaging and sales, I can let out." My only requirement is that the state can guarantee the legitimate and legal patent rights of ST. Unless authorized by ST, other domestic enterprises shall not produce new technology products, and the infringing products shall not enter the product directory of the State Grid. ”

Secretary Lu raised his eyebrows, what he saw and heard in Xiucheng during this period of time was indeed as Hu Wenhai said, although the status of Xinke Company was transcendent, it was not too greedy, but it was well versed in the way of dealing with the world. Most of the cooperation with other enterprises is to provide key technologies, and then let the partner to produce the final product, and itself is firmly in the upstream of the industrial chain.

In this way, it is much better than the situation imagined by Secretary Lu after all. Since there is still a bite of rice to eat, it is much easier to divide the cake on top.

Secretary Lu nodded, and said with a straight face: "Mr. Hu can have such a consciousness, I think the chief will be very happy." ”

Chapter 240 CS

Secretary Lu left with Hu Wenhai's words, but Hu Wenhai still had a lot of troublesome things to scratch his head about.

In the matter of the shares of IBM in the United States, Japan is about to hold square talks, introduce Mirage fighters from Pakistan, prepare to take over the Spey engine project, and think about how to find money for the Navy......

These are all "big things", and the "small things" within ST are even more innumerable, and there will always be a huge amount of work waiting for him to deal with.

However, Mr. Hu is a person with a "president", and his subordinates are not full of talents, at least they will not be unable to catch the heads of those who do the work. After arranging the things at hand into categories, Hu Wenhai's mind opened up again.

Busy, too busy! In the past year, he has been so busy that he has not had a moment to catch his breath. As a reborn person who was full of regrets because he was busy with work before he was reborn, Hu Wenhai felt that his life could not be lived like this.

If it is said that rebirth in the previous life is to make money in order to survive and live. So what is the purpose of making money in this life? Survival and life have long been not a problem. Hu Wenhai thought about it. It boils down to that phrase - self-actualization.

Do what you want to do, that's the true meaning of making money.

You can't be happy when you have no money after being reborn in this life, but you don't have to play when you have money, right?

Life is endless, and the toss is endless. Taking advantage of the orderly promotion of various work, Hu Wenhai felt that he could relax a little.

As for what to play, it's not, he's already thought about it.

"Yes, the laser receiver is connected to the smoke generator. Ah. Let's just do an experiment, you can just tie the laser emitter directly with tape, and then calibrate it when the product is actually released. ”

"Okay, no? Okay, no?"

“OK！”

"Check the transmit power, don't be in danger!"

"All units report on the readiness of the report, Okay, Director Bai, start testing!"

Bai Shi, Hu Wenhai's mother Xiao Yeqin's colleague in the 64th Institute, with his help, Hu Wenhai took out the first pot of gold red dot sight. Since then, he has been the backbone of ST's R&D capabilities, participating in the development of laser guidance and unmanned aerial vehicles. It can be said that he has a lot of experience in invention and manufacturing.

It's not, every time Hu Wenhai has any fresh ideas. He must have been the first thing that came to mind.

Under Hu Wenhai's shouting, the crowd around the experimental site was quickly emptied. Although there is nothing dangerous about this experiment, it is currently standardised by ST for conducting field experiments. No one knows what will happen to this kind of thing, and it is better to trouble ten thousand times than to accidentally get hit once.

Shiraishi was the executor of the first experiment, and he was held with an automatic rifle with a flashlight-style laser transmitter tied to the tip of the gun with duct tape, and a wire connected to the bolt.

"Experiment ready!" Shiraishi quickly shouted when he saw the laser emitter on the muzzle turn green.

"Fire!"

Pap, papapa-

Shiraishi pulled the trigger again and again, and the Bayi bar in his hand let out a loud gunshot, and three bullet casings emitting gunsmoke were thrown out.

However, none of the staff members present were too worried, because the gun was loaded with empty ammunition used in the exercise, and just listening to the sound of gunpowder smoke was actually not lethal.

On the opposite side of the test site, three chest targets were erected in the direction where Shiraishi's end gun was aiming, and the three targets were located 100, 150, and 200 meters away.

Just after Shiraishi pulled the trigger and fired the empty cartridge, colored smoke rose from the chest target opposite.

Obviously, the power of the empty cartridge cannot reach a distance of one or two hundred meters. If you change to a Chinese in the nineties, you can see at a glance what this thing is almost without thinking.

Laser countermeasure exercise system, or in the civil it has a "common name", CS field equipment.

Simulating combat through lasers, this is a game that is popular all over the country in China in the future.

This kind of game is simple and usually consists of a set of receiving devices and a set of transmitting devices. Under the premise of laser head technology, there is no difficulty for Hu Wenhai, and it is basically an engineering assembly problem.

With the foundation of a former military factory like the 501 Factory, a similar system can be changed in minutes.

Laser transmitters and receivers do not need to be as complex and high-power as missiles and laser irradiation guidance, and at a distance of one or two hundred meters, the power provided by two water lithium batteries can meet the needs of more than 24 hours of use.

In terms of cost, Xinke has reached a cooperation with Xiucheng Quartz Products Factory to help it introduce the manufacturing process of yttrium aluminum garnet crystals, and other supporting equipment of laser emitters can also find cooperative suppliers in Xiucheng. The only trouble is the laser receiver and judgment and control program, but fortunately it doesn't take a few bucks to import this thing in the United States.

When the wafer factory is built, it can quickly achieve the price of cabbage.

As the smoke canister received the signal from the laser receiver and smoked, a warm applause suddenly rang out on the test site.

Another new product has been invented, and whether it will be welcomed by the market in the future or not, is always something to celebrate.

Hu Wenhai rolled his eyes and beckoned to Wang Ye and Qin Kai with a smile. To say that among the people around him, it is really the two of them who have the highest combat effectiveness.

"Let's do a real combat test. The two of you look at shooting each other in motion. Can you effectively excite the working signal of the laser receiver?"

"Mr. Hu made this thing good!" Wang Ye and Qin Kai are different. He had been in the company below, and although he was a member of the air division, he had also experienced several exercises.

Oh no. This year's domestic exercises may be called acting. The purpose is not to cultivate actual combat experience and discover problems through confrontation, but mainly to serve as a platform for familiarizing yourself with equipment, coordination, and technical and tactical drills.

From a military point of view, the exercises at this time can be regarded as purely planning-centered. A "script" is made before the exercise, and then every move during the exercise is carried out according to the script.

Except for reasons of military thought and tradition. Technical factors also constrained the actual combat and confrontational nature of the exercise. After all, if you want to conduct an actual combat exercise, you can't really shoot the gun at the "enemy" in the exercise, right?

The traditional exercises, which are estimated according to the actual situation, are simply unable to adapt to the complex evolution of the battlefield brought about by the progress of military science and technology.

The result is a drill that has been criticized for not being used to turn into acting. Wearing this set of exercise equipment, Wang Ye felt its benefits. To put it simply, your marksmanship is not good, and if you can't hit, you won't miss!

That is, with such exercise equipment, the advantages of elite troops can be truly brought into play. Otherwise, an ordinary infantry company would encounter a reconnaissance company, and as a result, both sides would suffer heavy losses according to an estimate of their strength, with equal strength on both sides. Nor can it correspond to the actual situation on the battlefield.

With this system, the value of elite fighters in the exercise. It is embodied.

Wang Ye and Qin Kai didn't say a word, and with the help of the staff, they put on a complete set of laser countermeasure equipment. There is a smoke canister next to the helmet, and there are laser receivers on the front and back of the body, and the eight-bar rifle has been modified to trigger a laser fire when firing an empty cartridge. However, Hu Wenhai has only played civilian-level CS confrontation in the future, and I don't know if this thing in his cottage can meet the needs of military exercises.

Since it was a real combat exercise, it could not be carried out at the test site in Pingchuan. Hu Wenhai led the team, and everyone turned their heads and drove towards the empty factory building where the original 501 factory was abandoned.

The new technology factory has been renovated, expanded and newly built, the original seven workshops have been abandoned four, and three have been renovated and expanded and put back into use, and several "luxury" steel structure workshops have been added. Three of the abandoned workshops were demolished and re-planned, and one workshop was temporarily demolished, and then it was quickly stopped by Hu Wenhai.

His little careful guessing was nothing more than a layer of skin left over from the original 501 factory. With this workshop, the 501 factory still exists, and the company can be transformed at any time and put on a layer of "state-owned enterprise" skin. Although we all know what is going on with Factory 501 and Xinke Company, many times there is no such skin, after all, it is still different.

Dressed up, Wang Ye and Qin Kai entered the venue from two directions respectively, and after a while, they heard the sound of gunshots like popping beans. The two of them were worthy of being elite soldiers, and they fought for more than ten minutes, only listening to the gunshots, but not seeing the smoke coming out of the smoke generator at all.

"Huh, isn't there a problem with the equipment?" Hu Wenhai wondered, beckoning people to take out another set of equipment: "Put it on for me too, I'll test it myself to see if it doesn't work well in actual combat?"

In the final analysis, it was Hu Wenhai who watched Wang Ye and Qin Kai playing "happily" in the abandoned factory, and he couldn't help but feel a little itchy.

asked people to equip themselves with a set of confrontation equipment, and Hu Wenhai happily rushed into the ruins of the workshop. Then in less than half a minute, he crawled out of the workshop in embarrassment.

"Don't play, don't play!" Hu Wenhai snorted with a red smoke canister above his head, and said hatefully: "I'm your boss, please take care of my mood, okay?"

Behind him, Wang Ye and Qin Kai looked at each other and shrugged innocently.

In any case, at least it shows that laser countermeasures can still operate in real combat, which is gratifying, right?

Without waiting for Hu Wenhai to complain, he saw a series of military vehicles driving not far away.

The soldiers jumped out of the car, and a fat man, who looked like a mountain, jumped out of the passenger seat of the head car.

The visitor took off his sunglasses and looked at Hu Wenhai, who was still smoking red smoke on his head, and couldn't help laughing: "What are you playing with Mr. Hu? )