After Gu Pan said the sentence "You won't be kidnapped by aliens, right?", he felt embarrassed. When the boss heard this, he was very happy and thought to himself, was Gu Pan from Mars? He usually looks so serious and makes him so funny. If he weren't afraid that Zheng Wen would scold him, he would laugh out loud.

"Then Liu Meng didn't say where to go?" Zheng Wen continued to ask.

"I really didn't say that. He often was not in the dormitory and didn't say where he went. Brothers were embarrassed to ask, right? It made everyone embarrassed." The boss is the boss, and he always associates love-love.

"What should I do? If the phone is there and the person is there, there will be no accident, right?" Zheng Wen ignored the boss and said to Gu Pan.

Gu Pan also looked worried, and forgot that Liu Meng had broken the appointment and had been waiting for her for a long time. However, she was much calmer than Zheng Wen. After calming down, she tentatively said: "Can you take Liu Meng's phone over and see? Maybe there are some clues."

Zheng Wen felt that it made sense, so she quickly passed on this to the boss.

Although the boss usually uses any means to please the beauty and can do anything despicable, this time he rejected it, just four words, "Absolutely not possible!"

Zheng Wen was so angry that she clenched her silver teeth.

The boss also has his own persistence. Who knows that there are some secrets in Liu Meng's mobile phone? If something big happens, he will never betray his brother like this. He attaches great importance to this, making jokes, making jokes, and helping the girl with bubbles. This is nothing, but it is absolutely necessary to involve the bottom line of principles.

Zheng Wen's tone softened and persuaded her, and her gentle tone that she had never been before made the boss feel a little fluttering. As a result, when she mentioned taking her cell phone, she immediately refused. Zheng Wen was so angry that she hung up the phone directly.

He said to Gu Pan in a depressed manner: "What should I do? He refuses, don't be in a hurry. Maybe Liu Meng is really delayed in the urgent matter."

The more he said this, Gu Pan became more and more frightened, and he didn't care about so much. He opened a text message that Liu Meng sent to her and handed it to Zheng Wen, saying, "I always have a bad premonition, calculate the time. It was when he went out after sending me a text message. Could it be that he would have hinted me about something?"

Zheng Wen took it over and looked at it, giggled, "My cousin, I didn't expect you to look like a silly woman in love. This is obviously a joke."

Gu Pan didn't argue with her, but insisted: "You have to take the phone over. Maybe there is some clue."

…………

Although Huang Sheng and others may have fallen asleep, Liu Meng was still careful when he disassembled the DC power supply in the computer. After removing it, he even avoided the blind spots that were invisible to the camera and quickly unscrew the screws.

For this simple switching power supply, Liu Meng could see the wiring direction and schematic at a glance, and carefully remove the 5V and 12V transformers in the backup power supply.

Carefully put the two transformers into your pocket. These two gadgets are life-saving straws and you must not be careless. Quickly screw the DC power supply screws, put them on your chest to cover them, quickly move them to the computer host, and quickly install them.

After doing this, a lot of sweat has already oozed out of my forehead, which is related to my life. If I force myself to calm down, how can I not be nervous until I return to my original state and feel at ease.

There seemed to be no movement in the office next to me. Although there was a small door open in the middle of the two rooms and a bookshelves blocked, you could still hear subtle movements, but you couldn't hear clearly when you spoke.

At this point, I can only fight. Liu Meng thought that he had agreed to cooperate, and Huang Sheng and others would keep staring at him for no reason, but they had to seize the time as much as possible, and it would be best to get the micro high-voltage pulse power supply within an hour.

With this self-defense, the safety factor will be greatly improved.

The first thing I started was the first stage resonant boost transformer. I took out one of the slightly larger transformers and used 10 2.2uF capacitors to connect the capacity to 22uF. The expanded capacitor is connected in series with this transformer, and then connected in parallel with a circuit with a No. 5 dry battery and a small resistor. A small switch is added between the series circuits of the two.

The oscilloscope is connected to both sides of the transformer by isolation.

A simple device for testing transformer parameters is made.

When the line is connected, the No. 5 dry battery uses a small resistor and the transformer leakage inductance to charge the capacitor, which can be completed almost instantly. Press the small switch between the two series circuits, and the transformer leakage inductance forms a loop with the charged capacitor, which will cause series damping resonance.

By quickly intercepting the oscilloscope's picture and recording the period of series resonance, you can calculate the leakage inductance of the transformer.

There is no need to calculate accurately, Liu Meng can complete it in his mind. The result he got made him a little irritated. The leakage inductance of the removed transformer reached about 0.1H, which is much more than the 2mH required for the previous calculation.

This means that he needs to completely disassemble the transformer, rewind it, and reduce the number of turns. He was just a lucky person. If the transformer is directly available, he would save himself a lot of time.

In this environment, the faster the speed means the safer it is.

After a brief loss, Liu Meng had a sense of courage in his chest. He breathed a sigh of relief and immediately removed the transformer and rewind it according to the 8-fold ratio. The enameled wire was quickly wrapped in his hands. In case of precautions, he still had a lot of twists.

It is still a simple test circuit built with the leakage inductance of about 28mH, but it is still too much. I will immediately disassemble and reduce the number of turns. In order to prevent the reduction of too much at once, resulting in the parameters being much smaller than the required 2mH, Liu Meng could only patiently think about reducing the coil for a few turns.

The longer the time goes, the greater the potential danger. It took 20 minutes to get over it. I couldn't help but feel a little anxious. After reducing it for two more rounds, I connected the test circuit and calculated it slightly based on the image in the oscilloscope, about 2.3mH. Liu Meng then breathed a sigh of relief. The first stage of resonant high-frequency transformer was completed.

The reinforcement process is done on the pin soldering point, and the first-stage high-frequency transformer is ready.

Compared with the first-stage transformer, the second-stage high-transformation ratio step-up transformer is much easier. It does not need to meet the resonance conditions. As long as the voltage is increased by about 2,000 times on the basis of the first stage, the pulse is sharper and a pulse voltage of about 30,000V can be output instantly.

The closer he got to success, the more rapid Liu Meng's breathing was, and his heart was beating to his throat. Despite this, he remained calm.

With the experience of first-stage winding, the second-stage transformer is much easier, and it meets the requirements after only two modifications.

Now that the device has been prepared, the second step is to draw the circuit board, which is not complicated. However, it also takes some thought to design the insulation and isolation between low voltage and high voltage.

After a rough thought, after all, I have rich experience in the development and development of high-voltage DC power supplies. When the first sketch came out, Liu Meng only pondered for a moment and made partial adjustments. Even if it was completed, it was designed to be in the shape of a slender strip for easy hiding.

It is very convenient to confirm the design drawings and make the circuit board immediately. The laboratory has the equipment for production, otherwise it will take a lot of time to weld the blank board with bare hands.

As he got closer and closer to success, Liu Meng was becoming more and more anxious. Now he was not allowed to be discovered and could only speed up his own pace.

Liu Meng didn't dare to make too many circuit boards, only two pieces, making too many circuit boards, which are inconvenient to hide, and everything is for safety considerations.

Under the dazzling light, Liu Meng held a soldering iron in his hand to solder the device. He didn't know how long he had been working with high concentration. At this time, a stream of drowsiness was already coming from his head, and he wanted to lie on the table and sleep for a while.

But it must not be. This is a rare opportunity. If Huang Sheng discovers his small moves, the consequences will be unimaginable. Liu Meng has fully understood and can do anything for a person like Huang Sheng.

I tried my best to endure this huge feeling of fatigue, and my eyes seemed to be dry, and it was difficult to see the pins of the electronic device clearly at close range. Fortunately, I used analog devices and did not have too many complex controllers. Otherwise, my eyes would be blurred, my hands would shake, my pins would stick together, and when I powered up, I would be finished.

After all welding is completed, insulating treatment is also required to be performed in addition to the discharge head, otherwise you will be corona and search everywhere, but there is no suitable item to use.

Liu Meng's mood suddenly became depressed, and he actually forgot the simplest but most important thing!

No, you cannot give up, you must persevere. Liu Meng tried his best to control his emotions and could definitely accomplish it. The super confidence accumulated by solving countless problems over the long period of time allows him to calm down immediately at this moment.

The experience of success is extremely important to everyone, which is that it can help you strengthen your beliefs and persevere to the end in the most difficult moments. Success is often persisting for a while at the most pessimistic moments.

Liu Meng almost searched the whole room, but couldn't find the right insulation material. He couldn't help but sit on the chair exhausted. After a long period of high concentration and work, his mind relaxed a little, and his whole body felt tired, which was a tendency to fall like a mountain of illness.

Sitting, gasping for breath, my eyes looked at the computer screen in front of me, and my temples were so tingling. I tried my best to stare at the time, and another three hours passed. In short, I worked almost 13 hours in a row.

The two eyelids really want to close together. Liu Meng understood very well that falling asleep at this time would be a abandonment of his mind and he might not recover.

Just as he tried his best to fight against fatigue, a slight dongdong sound came from his ears. He thought he had already had auditory hallucinations, and concentrated on the remaining little energy to listen carefully. The sound disappeared again. Just as he was about to relax, the dongdong sound came again.

In this way, Liu Meng was sure that this was not his auditory hallucination, but that there was indeed a sound. For the quiet laboratory, even his tired breathing could be heard, and even the beating of his heart seemed so powerful.

Just when he couldn't confirm what the sound was, he suddenly saw some small cement particles falling from the corner of the roof. It was a clattering sound. He insisted on standing up and walking over and saw a larger piece of cement particles falling down, just in time to contact with one hand.

It turned out that heating pipes were arranged here, but after the line was changed, it was blocked.

When he looked up, a small hole was exposed at the corner of the roof, and his eyes were also looking down. The two of them met with each other. Both of them were surprised. The man on the roof made a slight scream. Liu Meng heard the sound and was sure that he was a woman.

...

The trailer for the next chapter, Huang Sheng’s final madness!
Chapter completed!