After being taught a hard lesson by Long Jun, Qin Yunfei also learned to be well-behaved.

These days, in addition to asking Lin Feixue and Su Xinghe to help clean up the boiler, he is buried in sorting out the copper coils.

However, when he was busy sorting out the copper coils, Ye Linghua was very surprised and asked him what he was doing with these copper coils.

Qin Yunfei didn't answer, just asked her to continue to help.

In this way, these four people have been busy for a week, and fortunately, they are the powerhouses of the Star Soul Cultivators, so they have made a prototype.

However, when everyone saw such a large boiler, including Lin Feixue, they couldn't believe what they saw in front of them was a generator that could produce stable current.

Even, those students in the East Courtyard expressed their doubts when they saw this huge boiler generator set again.

"Although Senior Brother Qin's means are very strong, and his ability to create strange things is beyond people's reach. But can such a boiler-burning thing really make thunderous electricity?"

"I don't know, he signed a contract with Lord Longjun, if he can't make it, when the time comes, it will really be ......"

Everyone didn't continue, after all, Qin Yunfei had fought for so many benefits for them, and they didn't want to let Qin Yunfei get out of the way like this.

However, when they saw such a large boiler, they were still embarrassed and didn't know how to describe their mood at this time.

Not to mention the difficulty of the Thunder Star Swirl powerhouse to create a high-voltage current, let's just say that this ordinary Star Soul Cultivator, when he has not yet reached the realm of a Soul Master, how complex Star Seal does he have to use to create Thunder?

But such a boiler, without even a spell on it, can it release the power of thunder?

The crowd fell into deep thought again, and they began to wonder if they were really following the right person.

However, just when everyone didn't want to believe Qin Yunfei, Qin Yunfei suddenly drew out four wires from the generator and connected them to a big black box next to them.

When Lin Feixue saw this, she asked, "Yunfei, what are you going to do with this box?" I remember, when I was busy with Dean Su, you were always making this black box, what was in it?"

Qin Yunfei smiled and said, "What is hidden in this can change the world! You don't need to know for the time being, but you must believe me!"

Lin Feixue and Su Xinghe looked at Qin Yunfei in amazement, they couldn't believe that just such a thing could change the world?

However, seeing Qin Yunfei's serious appearance, how could they doubt it?

In this way, under Qin Yunfei's command, they quickly carried out the final overhaul of the boiler, and after making sure that there were no problems, Qin Yunfei ignited the boiler, and at this time he looked at the cold water in the boiler excitedly.

As the vapor pressure gradually increases, the exhaust hole opens, and the boiler begins to spin wildly.

The rotating shaft on the boiler drives the gears, and the gears drive the generator bearings next to it, and it doesn't take long for the generator to run wildly.

When Su Xinghe saw the boiler driving the generator, he was dumbfounded.

"This ...... The internal pressure of the boiler increases, and the exhaust gas forms a power rotation, and the rotating power drives the bearing gear...... This series of operations is simply smooth......"

When Su Xinghe admired this boiler generator, he suddenly thought of the mini crucible he had made, and suddenly felt that his face was extremely red.

"Mom...... How dare I show off that crucible in the first place? This kid is not human...... If he laughs at me with a crucible in the future, won't he make me feel ashamed?"

The more Su Xinghe thought about it, the more embarrassed he became, he was about to curry favor with Qin Yunfei and ask him to shut up and not talk about the crucible, but before he could do anything, he saw that Qin Yunfei had already taken out a strange clock device from his arms, and even went up to connect two of the probes to a few terminals on the small black box.

What Qin Yunfei was holding was a universal voltmeter, and that black box was the simple transformer box he made, as long as he did some simple operations on it, he could perfectly control the output voltage of these three alternating power supplies.

The power of electricity lies in the voltage, as long as the voltage is up to standard, then in the output, you have a chance to win.

It's just that after Qin Yunfei completed this round of testing, he found that although this transformer can turn 10,000 volt high voltage into 200 volt ordinary voltage, it has not yet been able to achieve million-level adjustment in terms of amplification.

Seeing this posture, Qin Yunfei couldn't help frowning.

"Isn't it all in vain? No, I have to solve this problem quickly. ”

When Qin Yunfei was muttering to himself, he threw out the hundreds of batteries stored in his arms, and after making adjustments, they were connected to the generator.

When Su Xinghe saw it, he was stunned and asked, "Yunfei, what are you doing here?"

Qin Yunfei waved his hand and said, "Charge, you guys go get busy first, I'm going to make improvements now." ”

With that, he didn't pay any attention to him, and went into the laboratory again.

The black box is a universal transformer made by him, although the control aspect of voltage reduction can be perfectly solved, but there are still many problems in amplifying voltage.

For example, after amplifying the voltage, the original voltage is not on the edge, so when the boiler drives the motor to flip, its current flow will increase.

As a result, the voltage becomes unstable.

If this is the case, then the estimated design voltage will be deviated, and the voltage of 100,000 volts that should be released may only be 80,000 volts at this time, or even 50,000 or 60,000 volts.

Qin Yunfei is a perfectionist, and he does not allow such a big error in the things he makes.

When he first studied physical chemistry, his major was not mainly in this area.

Moreover, by the time he first studied quantum mechanics, his expertise in this area had almost been forgotten.

Therefore, at this time, it is already difficult to recall.

In this way, he began to frantically recall how the correction circuit was designed.

And as he continued to recall, the more he thought about the correction method of the circuit, the more extreme he became, and even deviated from the circuit he originally designed.

"How can this be, I have obviously analyzed this circuit before. ”

Qin Yunfei rubbed his head and kept questioning himself, now is the critical moment for his own development of core technology, how can he cause the circuit supply system to be imperfect because of a power correction relationship?