Chapter 62 Wireless Chargers

The handmade chip is very difficult!

First of all, the raw material of the chip is wafer, and the composition of the wafer is silicon, which is refined from quartz sand. The thinner the wafer www.biquge.info, the lower the cost of production, but the higher the process requirements.

Superman's Super Vision and Hot Vision handle this absolutely no problem!

Then there is the wafer coating film, which can resist oxidation and temperature resistance, and its material is a kind of photoresist.

Then there is wafer lithography, development, etching

……

After Lei Yi went home, he took out all the things he bought, looking at these messy electronic devices in front of him, with the professional knowledge of electronic information technology at the ordinary level, he would never think of what Lei Yi was going to do, or even if those professors who specialized in electronic technology came, they couldn't guess what Lei Yi was going to do!

After understanding, Lei Yi found that the world's wireless charging technology commonly used is a so-called electrical coupling technology, and his biggest disadvantage is that it needs to be charged at close range, so it is not a perfect framework concept of wireless charging technology. For example, Professor Hui Shuyuan of the Department of Electronic Engineering of the City University of Hong Kong has successfully developed a "wireless battery charging platform" in the early years, which can put several electronic products on a charging platform, without the need for external wires, and automatically charge through low-frequency electromagnetic fields, and the charging time is no different from that of traditional chargers. However, this technology still requires the product to be in contact with the charger, and it mainly uses the principle of near-field electromagnetic coupling.

To know that it is a wireless charger developed by Chinese people, Lei Yi said that he is very proud, but he still has to complain!

That is, when charging with a wireless charging platform, the mobile phone must be in close contact with the charger, and it must be placed in an accurate location!

Although Google has appeared resonant sensing technology with an effective distance of about two meters, it is not suitable for civilian use at present, and is only suitable for laboratories.

Well!

Chicken!

It's really enough, it took so much effort, and the effective distance is only two meters, which seems to be unconstrained, but in fact it is more restrictive.

What's the difference with wires, and even wires are much farther than this resonant technology.

The framework concept of Lei Yi is somewhat similar to resonant induction technology, or it is born from resonant induction technology. However, it is farther than the resonant induction technology, which is called magnetic variable frequency transmission technology, but it is limited to material factors, and it is estimated that it cannot achieve the goal expected by Leiyi

Lei Yi frowned, and calculated in his mind how many meters the effective charging distance that the wireless charger can achieve after it is made.

Fifteen meters!

Totally sufficient!

After the company becomes formal, using more suitable materials, it is estimated that the effective charging distance of the wireless charger should reach about 20 meters.

Although theoretically the limit distance can reach 20 meters, and the transmission power can reach up to tens of watts, it is still a little insufficient to be used in large electrical appliances, but for some small intelligent terminals, it is completely sufficient, and the wireless charger suitable for large electrical equipment can be talked about later.

However, even if it is only 15 meters at the moment, Lei Yi is full of confidence.

Fifteen meters of wireless charging, this is already shocking enough!

As a world conquered by mobile phones, how many people can not be shocked and attracted by this wireless charger with an effective distance of fifteen meters!

Since there are no corresponding instruments, although Lei Yi does not have to worry about accuracy, it is very troublesome to engrave a circuit board by hand.

Lei Yi took out the soldering iron he just bought and used complex flying wires to realize the function of the circuit board, which had the consequence that the serious circuit board could not be seen, but only the dense wires.

This resistor is put here......

This triode and the on-board chip are placed here......

"Smart chips, sensors, rectifiers...... There are also launchers. ”

……

What Lei Yi has to do is to integrate these components together, so that the smart chip can accept the position information of the terminal at any time, calculate the best angle and power, and finally automatically adjust the transmitter antenna to achieve the most perfect working mode. This is not only efficient, but also saves a lot of energy.

With his barely fine welding technique, he finally completed the welding of the wireless charger and the receiver of the mobile phone in the evening, looking at this strange thing about the size of a TV remote control, Lei Yi was silent......

At the same time, Lei Yi also fell into a deep helplessness, why didn't he listen to the class of the art department when he was in class, if he listened to the art class, at least he could be much stronger than now, looking at this somewhat strange box......

"The receiver on the mobile phone is OK, only the size of a fingernail, but the wireless charger doesn't look very good! The physical examination is a bit big! Do it again......"

Lei Yi briefly tested this wireless charger to see that it could be charged and then removed it, and then modified and optimized the interior of the wireless charger on a large scale, trying to reduce the components that can be removed, and beautifying the appearance.

……

The last thing that appeared on the table was what looked like a miniature radar, about the size of a Red Bull can.

Lei Yi couldn't wait to plug it into the power socket, hold a receiver the size of a fingernail, and install it on the data interface of his mobile phone.

"Ding Dong!"

The prompt for charging the mobile phone sounded, Lei Yi was very excited in his heart, and an irrepressible ecstasy surged to his heart, holding the mobile phone in his hand,

One-step!

Still charging,

Two steps!

Still charging,

Three steps and four steps!

The charging pattern is still displayed on the phone,

One step and two steps (like the devil's pace), until the tenth step, the phone still prompts charging!

Lei Yi took the mobile phone and walked out of a distance of about fifteen or sixteen meters, still prompting charging, and then looked at the mobile phone screen and was no longer charging.

This is already a product that promotes the progress of the times, it will be the mainstream of future charging technology, and the world will say goodbye to wired charging.

There's one more catch, though!

In the world, even the security of home wireless networks has been questioned by many people!

And this wireless charger may produce harmful magnetic fields or electromagnetic radiation, Lei Yi has often seen it when surfing the Internet.

Therefore, Leiyi's chip uses intelligent frequency conversion, and the damage to people is almost negligible.

In addition, if you use special production equipment, the charger can be the size of a plug, and the receiver can be soldered directly to the inside of the mobile phone.

……

Three days later, the company went to Lei Yi's house to hand over the company's procedures to Lei Yi, and Lei Yi was busy in the next few days.

Considering the limited funds, Lei Yi chose a large office building nearby, and spent 450,000 yuan to rent an area of 300 square meters on the thirteenth floor for a lease period of three years. Then I ordered a blade server online and spent three hundred and seventy thousand. Immediately afterwards, I found a decoration company and spent three days simply decorating my company address.

At the entrance, there is a neat row of server shelves, on which are placed brand new servers, and black data cables extend from the server port to the center, connected to the computer.

……

"Now that the Infinity Charger is ready, it's time to make a difference!"

Lei Yi sat on the chair and thought for a moment, then said to the computer in front of him: "Pangu, help me check the well-known headhunting company in Sichuan." ”

"Okay, please wait, master. ”

Suddenly, Pangu's electronic synthesized sound echoed from the computer.

Immediately afterward, the messy data on the computer screen flashed through it frantically, and soon Pangu locked on a headhunting company.

At the same time, Pangu's voice sounded again,

"Master, there are a total of twenty-three headhunting companies in Sichuan Province, and this is the one with the most credibility and connections. ”

"Help me contact them, I need a professional manager. ”

Lei Yi commanded, he really didn't know anything about the management of the company, whether it was recruitment or department arrangement, he didn't understand it at all. The most important thing is that he will definitely spend most of his time on crossing in the future, and he will not have much time to manage the company.

Therefore, he must find an experienced manager with guaranteed character to help him manage the company.

"Okay!

Pangu sent an email to Lei Yi as requested, and then fell silent.

……