Chapter 8 Dual Circuit Charge Pump Technology
Futian District.
Gesai Science and Technology Park.
This is the largest scientific research park in Shenzhen City. There are all kinds of laboratories in it, and they are rented out. The main service targets are small businesses that cannot afford to build experimental bases.
Due to the special nature of the laboratory, the security guards here are all veterans and implement militarized management and patrols. It covers an area of more than 300 acres, has thousands of cameras, and is also equipped with floor access cards. It is impossible to sneak in secretly and steal information.
In a certain experimental building in Area A, Gao Zhengqian was staring at the screen attentively, waiting for the end of the simulation verification.
In the team behind him, some are responsible for recording data, some are organizing files, and some are taking a rest.
No one knows how their team of 20 people completed such a large-scale chip design task and reached the stage of simulation verification in just three months.
“Bit!”
The laboratory door was opened.
Chen Xing also put on a white coat and walked into the laboratory.
The first time he saw Gao Zhengqian, he couldn't wait to ask: "Chief Gao, has the simulation verification passed?"
"Not yet, still waiting for the results of circuit-level simulation. "
Gao Zhengqian raised his head and replied.
Having just finished speaking, he patiently explained: "After the circuit-level simulation passes, we will conduct logic synthesis, convert the circuit into a gate-level circuit, and then conduct simulation verification. After passing the simulation, we will also Conduct special simulations, such as chip module sets, packaging, layout, etc., and finally evaluate the power consumption, timing satisfaction, signal integrity, etc. of the circuit."
"The president can go to the cubicle to take a rest, or go to the express station. In the Chong Laboratory, Chief Yang heard that there has been a technological breakthrough. I will let you know when the simulation is completed."
"Okay."
Chen Xing took the elevator again.
I originally thought that chip simulation would be fast, but I didn’t expect that the steps would be so complicated. No wonder a large number of scientific research experts would fail here. Chip design is really too complicated.
“Ding!”
The elevator door opened and Chen Xing came to the third floor.
He skillfully used the access card to open the closed door of the laboratory.
As soon as I stepped into the laboratory, a familiar calm male voice came.
“The president is here!”
It’s Ding Yaoping, a blue-quality talent who specializes in type-c interface technology.
Fast charging technology requires power line support. Knowing that type-c interface is the future trend, Chen Xing also assigned him to the fast charging team to cooperate with Yang Bochao in researching fast charging technology.
Before Chen Xing could respond, more than 30 people from the fast charging team put down their work and gathered at the door.
In the past three months, he has not done anything. In addition to researching the market, he has also been insisting on recruiting talents, whether they are blue or white, he will kill them all!
Now Longxing Technology has its own preliminary scientific research team.
In addition to the chip team and fast charging team, there are also appearance design teams, operating system design teams and screen internal screen teams.
Of course, except for the chip team and the fast charging team, the other teams are not staffed enough. They are only three or four people in size and have achieved very little results.
"The president is here, come and see our latest technological achievements."
Yang Bochao came to Chen Xing and enthusiastically introduced the new achievements, and other scientific research talents also echoed.
“Yes, yes, take a look at our latest achievements, I guarantee you will be shocked!” “This will be a disruptive technology, we are not kidding!”
< br>"If the chip team can't do it, then our fast charging team will take care of the company. This will be a historic turning point!"
"That's right!"
"Let's take a look. Look, President!”
The members of the fast charging team are full of confidence and have a sense of accomplishment written on their faces.
Chen Xing is also curious about how much surprise the fast charging team can bring him in three months.
As he moved to the test bench, a "dissected" mobile phone came into view. Yang Bochao couldn't wait to explain: "Our technology is called dual-circuit charge pump fast charging."
Chen Xing nodded slightly. , without interrupting, motioned for him to continue.
“Didn’t we use a dual-cell series voltage divider before? Due to limited materials, we could only test a maximum charging efficiency of 80W, but this charge pump technology is different.”
“ CEO, look here."
Yang Bochao pointed to the charging port of his mobile phone, and Chen Xing also noticed the difference.
Behind the charging port, there are two separate power lines, with a small device connected in the middle of each line. This should be what they call a charge pump.
“Assume that the mobile phone is charging now, and we input a high voltage and high current of 20V6A. It will first pass through dual circuits. Although the dual circuit design cannot divide the voltage like dual cells, it can share the current and get a high voltage current of 20V3A. , and then the current passes through the charge pump..."
Yang Bochao pointed to the circuit device and continued: "The charge pump will convert the 20V3A current into a voltage. When it re-enters the circuit, it will become a 10V6A current. Then the president looked here again."
Chen Xing followed the direction of his finger, and the two circuits came together again, and he suddenly realized: "The two circuits are combined into one, the current is superimposed, and the voltage remains unchanged, so it is 10V12A. The high voltage and high current are then divided by the battery's dual cells to achieve a charging efficiency of 5V12A. ”
“Yes! ”
Yang Bochao gave a thumbs up and praised: "The president is very smart. This is our dual-circuit charge pump fast charging technology." mAh battery only takes 10 minutes ”
10 minutes!
Full charge in 10 minutes!
Chen Xing swallowed and immediately thought of the second selling point of the new flagship, which was simply a dimensionality reduction attack.
The chargers currently on the market have basically parameters of 100-240V~50/60Hz 0.4A input current and 5V=2A output current. If a 3000 mAh battery is charged from scratch, it often takes five years. By about six hours, the efficiency is very slow.
However!
The dual-cell design is different!
Even without charge pump technology, pure high-voltage and high-current charging can greatly shorten the charging time because two cells are charged at the same time.
Now with the addition of a charge pump, you no longer have to worry about the battery being unable to withstand charging. The input current of the charger can be increased to 200v, and the voltage at the output can also be converted into a high voltage and high current of 20V6A. Fast charging for mobile phones.
"Can charge pump technology be applied?" Chen Xing asked the question he was most concerned about.
"Charge pump technology can be applied, but..." Yang Bochao glanced at Ding Yaoping on the side and continued: "Let Team Leader Ding tell you specifically, he belongs to half of the power adapter field."< br>
Ding Yaoping also immediately took a step forward, looked at Chen Xing and said: "Such a president, the 24 metal contacts of the type-c interface can be applied to the 20V6A fast charging technology, but the point that traps us is , the fast charging team lacks power adapter design talents, resulting in the inability to design power adapters. This requires you to pay more attention to the corresponding technical talents. ”
Yes!
Chen Xing finally understands!
The fast charging technology has been solved, but the power adapter has not. He needs to recruit talents in the corresponding fields.
After calming down, Chen Xing nodded and responded: "I will arrange for manpower to come over as soon as possible. You can continue to study fast charging technology first."
(End of this chapter)