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It is well known that the thickness of a thin sheet of paper after a hundred folds in half will exceed the distance between the earth and the sun!

If you use a very, very thin hammer, and the hardness is enough, then an ordinary person can easily break the explosion-proof glass, this is the principle of pressure and the ratio of the area of the force to the pressure, 1oo Newton force, the area of action is O.OO1 square meter, then it will produce 100,000 pa pressure, which will be very terrifying.

In the same way, if a small No. 5 battery, in a very short period of time, releases electricity, it will also produce a huge amount of energy, which can easily stun an adult.

What Liu Meng has to do is this device, the principle itself is not complicated, and it does not even need electronic control, and the analog circuit can be realized, but it is just a high-voltage pulse discharge.

To put it simply, it is nothing more than a high-voltage pulsed power supply.

Liu Meng has completely mastered the series resonance technology, and has undertaken a number of research and development work of high-voltage DC power supply during his study, and there was a project for the development of electronic computer X-ray tomography equipment in a hospital.

Due to the great radiation of this kind of equipment, the focus is to develop a high-voltage DC power supply equipment that can be boosted from zero to V within o.5ms, and the high DC voltage excites X-rays for tomography.

The miniature high-voltage pulse discharge device is like a knife for him, but Huang Sheng's real room itself is an electronic real room, which belongs to the category of weak electricity, and some commonly used power conversion devices do not, which is a limiting factor.

In particular, the two step-up transformers required for the production of high-voltage pulse discharge devices are not readily available in the electronic chamber.

No. 5 battery, the voltage is only 1.5V. The power is only 135omah, the first step is to step up such a low voltage, the purpose of the boost, one is to drive the next level of voltage transformation process used in the analog devices, many analog devices work at 5V or 12V.

But. Direct current is inconvenient to directly boost voltage, in power electronics, there is only one kind of direct DC voltage boost circuit, called Boost, this method of relying on changing the duty cycle to achieve boost has great limitations, and the boost amplitude is too small.

Two step-up processes in a miniature high-voltage pulse discharge device. Boost circuits cannot be used, the DC voltage must be converted to AC first, the first boost must be completed, and the AC rectification after the boost must be converted to DC before the analog electronic devices can be powered.

The AC voltage of the first stage of the boost is controlled by the analog device and passed through the second high conversion ratio transformer for the second stage of boosting, and then the voltage is boosted by two stages. A DC voltage of 1.5V will generate a high voltage pulse of 3ooooV.

It can stun an adult man in an instant, and this is the great power of knowledge.

Liu Meng's mind is also constantly thinking about how to use the existing devices for transformation, the Boost circuit was rejected first, the first step of the boost must use resonance technology, with a small ratio transformer to boost the voltage, this circuit is very simple, increase the capacitor. The transformer itself has a leakage inductance, which can be charged as an inductor to achieve resonance.

The purpose of resonance is to convert the DC voltage to the AC voltage so that the transformer can work.

was concentrating on thinking, Huang Zong was watching the surveillance screen outside, the more he watched, the more unhappy he became, remembering that Liu Meng almost abolished his life last night, he was scared into a cold sweat, thinking that his uncle Huang Sheng was not there anyway, so it was better to take the opportunity to teach this kid a lesson.

Come to think of it. A wicked smile appeared at the corner of Huang Zong's mouth, and he couldn't help laughing out loud, and he didn't hesitate to explain to Huzi and let him pay attention to the outside. Pushing open the bookshelves, a person slipped into the real room.

With a fist, he hit Liu Meng's head, and scolded: "Grass, don't do it yet, what kind of are you thinking about sitting stupidly? ”

When Huang Zong opened the door, Liu Meng noticed it, but he didn't pay attention to him, this punch came, and he hurriedly dodged to the side.

The hero does not suffer the loss in front of him, for Huang Zong's provocation, Liu Meng is unwilling to deal with him at all, with a cold expression, without looking at him.

Some people are like this, if you ignore him, he will feel that he has no sense of saving, and his saving is to disgust others to satisfy himself, which Huang Zong and Huang Sheng are worthy of being uncles and nephews, exactly the same.

Liu Meng is like this, and he dares to look down on him, Huang Zong rushed up, grabbed Liu Meng's neckline, and shouted: "Damn, you dare to look down on me! Aren't you a genius, I'm sorry, Lao Tzu will teach you a good lesson today." ”

The other hand hit Liu Meng's head, Liu Meng grabbed his arm with one hand, his chest was extremely angry, and he said word by word: "Just like you, I just look down on you, no matter when, I look down on you." ”

Just when Huang Zong was sneaking in, Liu Meng thought of a way, which angered Huang Zong and caused a conflict between the two.

Huang Zong's face was flushed with shame, and his other hand wanted to break free from Liu Meng's hand, he was a man of one meter eight, Liu Meng was thinner than him, although Liu Meng's green tendons burst out, that hand was very powerful, and he grabbed Huang Zong's arm tightly.

"You are special, dare to argue with Lao Tzu. Huang Zong felt that his self-esteem had been trampled on, and he couldn't subdue a thin boy, so he suddenly became angry, let go of Liu Meng's neckline with his other hand, and fought together.

This is exactly the opportunity that Liu Meng was waiting for, and he and Huang Zong broke out in a full-scale conflict.

Liu Meng is also evil-fired, hating Huang Sheng and Huang Zong very much, but reason made him suppress these feelings, and he originally deliberately provoked the dispute, and he no longer covered it up, and scuffled with Huang Zong.

A ruthless energy filled my heart.

Flashed Huang Zong's fist, dodged flexibly, and hit him in the ribs with a punch, Huang Zong was in pain, and screamed.

Liu Meng didn't give him a chance to breathe, and took advantage of the opportunity to punch him in the eye a few times, but he also paid attention to proportion, and he was afraid of angering Huang Sheng and the others, so he just swollen Huang Zong's eyes.

The shape was simply one-sided, Huang Zong was still unconvinced, and struggled hard, but Liu Meng's punch was harder than the other, and another punch was hitting the nose, all of a sudden nosebleed, his eyes were sore, and he shouted loudly: "Huzi, Huzi, where is your special death, don't you get in quickly, this kid is crazy." ”

Huzi didn't look at the surveillance screen at all, and saw that there was a little wine left over at noon, so he took advantage of Huang Zong's absence, and hurriedly drank it, and only after drinking did he see that in the surveillance screen, Huang Zongzheng was being beaten by a fat meal.

Carrying an iron rod in, he rushed over with a scolding, and smashed a stick at Liu Meng, Liu Meng instinctively dodged, but he was locked with an iron chain under his feet, and he made a loud noise, and he couldn't dodge, but he was still hit in the back, and there was a pain.

Huang Zong was beaten very lightly, and when he saw that the reinforcements were coming, his anger also followed, and he shouted: "Damn, Huzi grabbed him for Lao Tzu, and he had to let him know that he knew how powerful Lao Tzu was." ”

The big man called Huzi, who looked stupid, did have strength, rough skin and thick flesh, very resistant to fighting, and his body was much more flexible than Huang Zong, regardless of Liu Meng's punch, he rushed over and grabbed one of Liu Meng's arms.

How could Liu Meng be at ease under his control, rise up to resist, and suddenly became a mess, but the thin Liu Meng, in the face of the two big men, still suffered a loss after all, and he was about to be caught by the tiger.

Huang Zong glared at Liu Meng viciously, and was about to rush up and teach him a lesson. slapped his head, Liu Meng was restrained by Huzi, but he didn't want to be caught, so he shrank down and dodged.

Huang Zong was so angry that neither of them could subdue a thin boy, he touched the iron rod under his feet, and with a sneer, he was about to hit Liu Meng.

"Stop!" As soon as Huang Sheng came back and entered the office, he saw that the bookshelf was pushed aside, and the sound of several people fighting came from inside, and he had already stood and watched for a while, thinking that Huang Zong would teach Liu Meng a lesson, although he was willing to cooperate, he would still dissipate his sharpness and come out to clean up the mess by himself.

I don't want to, Huang Zong couldn't beat it, so he used an iron rod, which still beat Liu Meng out of a bad way, and he was a fart music player, so he had to rush in and scold him.

"What's going on? Lao Tzu will be away for a few hours, and it's too unreasonable to make a fuss like this. Huang Sheng said angrily.

"Uncle, this kid is not honest, he refuses to work, he sits there, I came in to persuade him to cooperate with us, but this kid hit him with a split, you see, this kid is too ruthless, my eyes are swollen, and my nose bleeds all over the ground. ”

Huang Zong looked at his uncle and was angry, and he was also a little worried, he was originally unhappy with Liu Meng, firstly, Liu Meng almost abolished his lifeline last night, and secondly, he saw that Liu Meng's skills were strong, and he also boasted that he was a technician, so he figured out that he would teach Liu Meng a lesson, a technical master, and find a sense of survival.

Hehe, what about you, I'm not beating you yet. With such thoughts, he naturally didn't dare to let Huang Sheng know.

Huang Sheng stared at Liu Meng and smiled, but his eyes were a little scary, and said: "Brother, seeing that you are so angry, I invited you here, and my brother has no choice but to do it, you can rest assured, as long as the opening is completed, the price is a lot of yours, and extraordinary measures are used in extraordinary times, don't resent my brother." ”

Liu sneered, pretending to be hurt by the two of them, disheartened, and said coldly: "I said a long time ago, I am not familiar with this kind of music player, I need to go back to stock up on the relevant technology, I don't trust me, the matter has come to this point, I also want to finish it, leave here, it's just that your nephew has nothing to do to bother me like this, forgive me for not having the heart to open, if you want to kill or scrape, it's up to you." ”

As he spoke, Liu Meng stubbornly went to that station, looked up at the roof, and no longer paid attention to Huang Sheng.

Huang Sheng still knew about his nephew, and he didn't believe that Liu Meng would take the initiative to make trouble, he still had a smile on his face, looked at Huang Zong, slapped it over, and then slapped it again, which stunned Huang Zong.

ps: I finally wrote about the author's most familiar field of power electronics, very exciting, I hope you also read it refreshingly, don't forget to like it.