English
- English
- 中文简体

Home page

All categories

12

2021-10

Comparison of wireless charging single chip microcomputer schemes

Comparison of wireless charging single chip microcomputer schemes

　　Wireless charging single-chip technology refers to the technology of charging devices with batteries without wires, using the principle of electromagnetic wave induction and other related AC induction technologies, and using appropriate equipment to send and receive AC signals that induce induction on the sending and receiving sides. Transmission technology, let’s learn about the comparison of wireless charging microcontroller solutions! 　　The research on wireless charging microcontroller technology originated in the 1930s. Michael Faraday discovered the phenomenon of electromagnetic induction, that is, the change of magnetic flux generates induced electromotive force, which generates current in the wire. However, the original idea of wireless power transmission was the idea and experiment of wireless power transmission proposed by Nikola Tesla in the 1990s, known as the father of wireless power transmission. 　　Technical principle 　　From the perspective of specific technical principles and solutions, the current wireless charging technology mainly includes four basic methods: electromagnetic induction type, magnetic resonance type, radio wave type, and electric field coupling type. These technologies are suitable for short-range, medium-range and long-range power transmission, respectively. 　　Comparison of various principle schemes of wireless charging microcontroller 　　At present, the electromagnetic induction type is mature and common. The basic principle is that, as shown in Figure 1, using coils on the sending side and receiving side respectively, an alternating current of a certain frequency flows in the primary coil, and a certain current is generated in the secondary coil through electromagnetic induction, so that energy is transmitted from the transmission side. The principle of electromagnetic induction from the side moving to the receiving side. 　　Magnetic resonance type, also known as near-field resonance type, consists of an energy transmitting device and an energy receiving device. If two devices are tuned to the same frequency, or resonate at a certain frequency, they can exchange energy with each other. It works on the same principle as sound resonance, where coils of the same vibration frequency arranged in a magnetic field can be powered from one to the other. figure 2. The technical difficulty lies in miniaturization and high efficiency, which is considered to be a promising way for electric vehicles to be applied to wireless charging in the future. 　　The radio wave formula is similar to the basic principle of the early ore radio, which is mainly composed of a microwave transmitting device and a microwave receiving device. A typical example is Brown's microwave power transmission system in the 1960s, whose image is shown in Figure 3. The whole transmission system includes three parts: microwave source, sending antenna and receiving antenna; the microwave source has a magnetron, which can control the source to output a certain amount of power in the 2.45 GHz frequency band; the transmitting antenna is an array of 64 slots, and the receiving antenna has 25% collection and conversion efficiency. The mobile wireless charging system of Japan's Ryugu University also uses microwaves with a frequency of 2.45GHz to transmit power, lighting up the police lights of a model police car in motion. 　　The electric field coupling method uses the induced electric field generated by the vertically coupled two groups of asymmetric dipoles to transmit electric energy. The basic principle is to transmit electric energy from the transmitting end to the receiving end through the electric field. This method is mainly used by Murata Manufacturing and has the characteristics of resistance to horizontal offset. 　　The above is the comparison of wireless charging microcontroller solutions. If you want to know more, please feel free to contact us!

26

2021-09

Automotive wireless charging solution: main methods of automotive wireless charging technology

Automotive wireless charging solution: main methods of automotive wireless charging technology

Wireless electromagnetic coupling technology: vehicle charging solution. Power engineers are no longer familiar with electromagnetic coupling. Transformers use this principle to transfer energy. If the two windings of the transformer are separated, it is wireless power supply in a sense. The charging of electric toothbrush is a typical case, but the electromagnetic coupling mode has great shortcomings. If there is no magnetic core with high permeability as the medium, the magnetic lines of force will seriously diverge into the air, resulting in the decline of transmission efficiency, especially when the two coils are far away. Therefore, it is not suitable for high-power and long-distance wireless power supply.

15

2021-09

A wireless charging scheme based on single chip microcomputer

A wireless charging scheme based on single chip microcomputer

The utility model relates to the field of wireless charging equipment, in particular to a single-chip-based wireless charging single-chip solution. Wireless charging technology originated from wireless power transmission technology, which can be divided into low-power wireless charging and high-power wireless charging. Electromagnetic induction is often used for low-power wireless charging, such as charging mobile phones. However, the wireless charging of electric vehicles adopts inductive type, and high-power wireless charging often adopts resonance type, which uses the received energy to charge the battery for its own operation. However, the current charging device is not user-friendly in use. The purpose of the utility model is to solve the above problems, and to provide a single-chip-based wireless charging single-chip solution. The utility model achieves the above purpose through the following technical solutions: a single-chip-based wireless charging single-chip solution, including a base, a flip seat, a transmitting coil and a single-chip control chip, one end of the base is integrally connected with the base shaft column, and the flip seat is provided with a flip The seat shaft column, the base shaft column and the flip seat shaft column are all hollow structures. The rotating shaft is inserted into the base shaft column and the turning base shaft column to connect the turning base and the base together, the fixture frame is integrally formed and connected to the base shaft column, and the transmitting end power conversion circuit, the transmitting end compensation network circuit and the single-chip microcomputer control chip are embedded in the base. , a cylindrical groove is formed on the flip seat, and the transmitting coil is embedded in the cylindrical groove. In order to further improve the performance of the wireless charging single-chip microcomputer based on the single-chip microcomputer, one end of the rotating shaft is fixed with a shaft-side fixing cap, the other end of the rotating shaft is provided with a thread, and the rotating shaft is screwed with an elastic knob through the thread. In order to further improve the performance of the wireless charging microcontroller based on the microcontroller, a wire slot is arranged on the side of the base, and a wire harness fixing piece is installed in the wire slot. In order to further improve the performance of the wireless charging MCU based on single chip microcomputer, the transmitting coil is wirelessly connected to the receiving coil through a magnetic field, and the receiving coil is connected to the rechargeable battery through the power conversion circuit at the receiving end. Wireless charging MCU scheme In order to further improve the performance of the wireless charging MCU based on MCU, a control button is set on the side of the base, and the control button communicates with the MCU control chip. In the above structure, the charging time and output power of the circuit can be detected by a preset program on the microcontroller control chip, and the time control of the microcontroller can be realized by setting the preset time by pressing the button. When charging small objects such as mobile phones, adjust the elastic knob to make the flip seat at a certain angle, put the mobile phone card on the card seat, and lean against the flip seat to charge. The utility model has the advantages that the wireless charging single-chip microcomputer scheme based on the single-chip microcomputer can adjust any suitable charging angle under the action of the adjusting knob, and the charging time can be controlled and set by the single-chip microcomputer.

30

2021-08

Uncover wireless charging, a collection of four wireless charging MCU schemes

Uncover wireless charging, a collection of four wireless charging MCU schemes

Wireless charging technology comes from wireless energy transmission technology. Wireless charging has been on the market for a long time and is more and more widely used. In particular, the mobile phone battery arranges four wireless charging MCU schemes in the circuit. Engineers who want to try the wireless charging MCU program can try it.

12

2021-08

Huawei mate40 wireless charging: why can mobile phone wireless charging develop rapidly?

Huawei mate40 wireless charging: why can mobile phone wireless charging develop rapidly?

Huawei mate40 wireless charging manufacturers analysis Although electronic products such as mobile phones and tablets have brought great convenience to people, the accompanying charging problems have also brought troubles. A charging cable, charger and power bank of different models will not add weight to the package. If the wrong model is found again, it will fall into the embarrassing situation of "lost connection". With the development of mobile phones, the charging methods of mobile phones are also constantly evolving. In the years when smartphones were just emerging, the charging of mobile phones was based on "universal charging". Now this little thing has disappeared in the long river of history, replaced by USB wired charging, which is also the more common charging method at present. We can call it the charging 2.0 era. The 3.0 era of charging is the wireless charging that is just emerging today. Using Tesla's electromagnetic induction principle, the current is indirectly transferred to the battery through induction to complete the charging operation. Today, Huawei mate40 wireless charging manufacturers will talk about why mobile phone wireless charging can develop rapidly. First, the giants added wireless charging Second, the 5G era is coming The second is driven by the upcoming 5G network. 5G mobile phones have added a large number of radio frequency modules. As mobile phones become thinner and lighter, the existing space utilization has reached its limit, and it is impossible to leave extra space for the battery. We can see that Apple has taken the lead in eliminating the headphone jack, which is not only for individuality and fashion, but also an important attempt to make way for new modules for 5G mobile phones. Within the framework of 5G technology, promoting the popularization of wireless charging technology for mobile phones is a process of mutual compromise. Third, mobile phone hardware is rapidly improving Moreover, the lack of breakthroughs in battery technology has forced further development of wireless charging technology. The improvement of mobile phone hardware performance can bring us a better experience, and even some places have surpassed the impact of smart terminals such as computers. However, with the rapid improvement of mobile phone hardware, the power consumption is becoming more and more fierce, and mobile phone battery technology seems to be unable to keep up with the rapid development of hardware. As a portable phone, running out of battery is like a brick. At present, how to improve the charging experience has become a top priority, which is also the original driving force for the rapid rise of wireless charging. Fourth, market demand Of course, what is important is the experience demands of consumers. Although some people think wireless charging is "cool, but not practical." From most user experiences, however, wireless charging is not only fun, but practical. Whenever you use your phone, just put it on the charging tray and charge it. Compared with wireless charging, finding a USB charging port on a messy table, plugging it in at the USB port, and putting down the phone is as complicated as practicing Qigong. Finally, Huawei mate40 wireless charging manufacturers summarize: Wireless charging has experienced explosive growth, and now is the golden development period of wireless charging. As users get used to wireless charging technology, wireless charging will become a necessity for mobile phones such as WiFi , which will completely change the charging needs of users.

28

2021-07

On board wireless charging scheme: application method of on-board wireless charging

On board wireless charging scheme: application method of on-board wireless charging

On board wireless charging solution providers share the usage of on-board wireless charging: 1. Prepare an on-board wireless charger device. 2. Fix the on-board wireless charger at a suitable position in the cab; 3. Connect one end of the USB data cable of the wireless charger to the automobile cigarette lighter and the other end to the wireless charger; 4. After fixing the position of the wireless charger and ensuring that it is stable and does not slide down, put on the mobile phone to charge. On board wireless charging scheme charging mode: front and rear At present, vehicle wireless charging is divided into front type and rear type. Generally speaking, pre assembly means that the car is equipped with a wireless charging device before leaving the factory, which is generally located in the storage box and armrest box. Place it on the charging device to charge. After installation, add additional devices such as on-board bracket on the vehicle to realize wireless charging. The installation position is not fixed. It can be installed in vents, car center console, etc., or fixed on the windshield with the help of suction cups. The on-board wireless charging technology comes from the wireless charging solution provided by the on-board wireless charging solution provider to the automobile OEM manufacturers. As a qualified on-board wireless charger, the certification of wireless charger is only the foundation. It also needs to meet the stringent on-board hardware standards, and has certain requirements for working temperature range, waterproof and dustproof. This includes a series of strict requirements such as E-MARK certification, factory system iatf16949 and EMC certification in the motor vehicle industry, often with strict standards, high cost and long cycle. This also leads to a small number of wireless charging manufacturers in the pre installed market. Because the qualification is not relatively new. As for the on-board wireless charging solution provider, because it is not a part of the vehicle and is not bound by the mandatory certification standards of many automobile manufacturers, the product reliability is not as good as the pre installed products, but it is better in the industry with low entry threshold and high product cost performance.

13

2021-07

Car wireless charging solution: can car wireless charging completely get rid of wired trouble?

Car wireless charging solution: can car wireless charging completely get rid of wired trouble?

Car wireless charging solution providers found that with the increasing frequency of mobile phone use, the convenience of mobile phone charging began to gradually affect the user experience. As a result, the emergence of fast charging technology has greatly shortened the charging time of mobile phones. Even so, in the process of mobile phone charging, the charging line still limits the convenience of using mobile phones. Therefore, mobile phone wireless charging technology has rapidly spread to all corners of our lives. Automobile wireless charger also came into being. The original intention of car wireless charging is to increase driving safety and improve use convenience. In this issue, we will study it carefully. First, the car wireless charging solution is not a new technology. As early as 1890, physicist Nicholas Tesla had successfully completed the experiment of radio energy transmission. Most of our mobile phone wireless charging uses electromagnetic induction. The basic principle is the same as that of the transformer, which is the "electricity generates magnetism and magnetism generates electricity" we learned in the physics class of junior middle school. 整个过程的实现也比较容易，通常在无线充电板内部安装一个线圈，线圈通电产生磁场，被手机中的线圈捕获，然后转换磁场变成电流给手机充电。这项技术的本质是利用磁场来传递能量，避免充电器和手机之间的导电触点外露。需要注意的一点是，现在支持汽车无线充电解决方案的新能源汽车大多不采用电磁感应充电方式，而是采用谐振式无线充电，即电磁谐振。电磁共振技术主要是使发射和接收装置产生电磁共振，实现无辐射磁场的电能传输。以这种方式充电的磁场辐射较弱，传输功率较高。以上就是深圳市贝兰德科技有限公司小编收集的内容，如有需要请与我们联系。

12

2021-07

Wireless car charging solution: what is wireless car charging technology

Wireless car charging solution: what is wireless car charging technology

Providers of wireless charging solutions for automobiles have found that in recent years, the frequency of mobile phone use in people's daily life has gradually increased, and the power consumption of mobile phones has gradually accelerated, especially in daily life. The more we rely on our phone for its capabilities, the faster it drains its battery. Therefore, more and more people will not let go of every place where they can charge their mobile phones, and being able to charge mobile phones in the car is undoubtedly a very good choice. Automotive wireless charging solutions solve this problem. The car wireless charging solution is that the traditional in-car charging method by using a car charger with a charging cable is not a very convenient and safe way. People need to unplug the cable when answering the phone. When driving, because the attention is occupied, if the cable is inserted into the charging hole, it is actually an operation with potential safety hazards, and the cumbersome and tangled charging also brings a very poor experience to the car owner. In addition, the instability of the cigarette lighter voltage will also cause certain damage to the mobile phone. In-vehicle wireless charging solves this problem. The car wireless charging solution is the application of mobile phone wireless charging technology in the car. This technology provides a comfortable and convenient experience for charging mobile phones in the in-vehicle charging area. It also solves the problem of traditional charging methods. It is convenient, and there are many troubles such as forgetting to bring the charging cable. If the car is equipped with a wireless charging launch board (or built in the center console), the user can put the mobile phone into the charging area to start charging, without further operations, just pick up the mobile phone and need to answer the call, and the charging process is interrupted. When you're done using your phone, put it back in the charging area to start the charging process all over again. The mobile phone battery is invisible and fully charged, which is safe and convenient. In addition to the in-vehicle wireless charging module of sensor technology, in addition to integrating sensor technology IPS technology, it can also integrate various modules to provide various in-vehicle intelligence and value-added services.

< 1 2 3 4 >

Contact Information

Mobile:135 1010 7649
Fax: 0755-28411662
Website:www.beiland.com

Chinese website:Wireless charging. Online
Mailbox:13823309199@163.com
Address: Room 808, Block A, Building 3, Phase 1, Tianan Yungu, Xuegang North Road, Longgang District, Shenzhen

This website supports IPv4 IPv6 bidirectional access

Sweep and add friends to understand price information

Copyright & © 2022 Shenzhen beirand Technology Co., Ltd

Business License

Powered by: CEglobal