There are three ways of wireless power supply: electromagnetic induction, magnetic induction resonance and microwave radiation.
Based on electromagnetic induction technology, the wireless charging / wireless power supply equipment we use now is produced according to the principle of electromagnetic induction.
The band characteristics of geomagnetism limit the feasibility of its various applications
Above the possible millimeter wave band of 5g is the infrared band of light wave. This band has obvious thermal effect on general substances, which is the reason why we feel the warmth of the sun.
Will radiation from wireless charging cause cancer?
The principle of wireless charging technology is actually very simple, Zhou Hongzhi said, "The basic principle of the so-called wireless charging technology is the same as that of the transformer
Electromagnetic wave wireless power supply
This principle is not complicated, that is, energy is transmitted to electrical appliances through electromagnetic waves as carriers. Radar and antenna are typical examples.
What are the advantages of wireless charging compared with wired charging
Compared with wired charging, wireless charging has the following main advantages:1. Complete current isolation between the two devices can make the application safer;
"Energy harvesting" wireless charging
energy wireless charging Harvesting technology is still in its infancy. "Energy harvesting" wireless charging depends on the energy around us, such as continuous microwaves, sound waves and radio waves around the air.
What is the difference between wireless charging and wireless power supply?
Both are essentially derived from wireless transmission. Transmission, as we all know, is the technology of transmitting power from the power generation device to the receiving end without cable.
Wireless power transmission can be divided into short-range, medium-range and long-range transmission
Wireless charging technology is derived from wireless power transmission technology.
Electric field coupling charging of wireless charging
Electric field coupling charging of wireless charging can be regarded as an enhanced version of resonant charging. It requires two resonant systems, transmitting and receiving, which can be made of induction coils respectively
Wireless power supply technology adopt electromagnetic coupling and other technical methods
Electromagnetic coupling is familiar to power engineers. Transformers use this principle to transfer energy. If the two windings of the transformer are separated, it is wireless power supply in a sense.
Wireless charging belongs to non-contact transmission
Wireless charging breaks the way that electric energy transmission can only rely on direct contact transmission of wires. It belongs to non-contact transmission and can avoid the problems of contact spark, sliding wear, explosion and electric shock that may be caused by contact electric energy transmission.
Development history of geomagnetism
China first discovered the phenomenon of magnet and geomagnetism, invented the compass in BC, and used the compass to navigate from 838 to 1099. Compass has been used in Europe since the 12th century.
Principle of wireless power supply
Wireless power supply refers to the power transmission mode through non physical contact. It is the third wireless revolution after wireless communication and wireless network. It is regarded by the industry as a cutting-edge technology with basic application significance.
Advantages and disadvantages of wireless power supply technology
The equipment using wireless magnetoelectric induction charging can be invisible, with low equipment wear rate and wide application range. The area of public charging area is relatively reduced, but the reduced floor area share will not be too large.
What is the business chain of wireless power supply
The wireless charging industry chain is divided into two parts: receiving and transmitting. The upstream and downstream industry chain at the receiving end is divided into chip, magnetic material, transmission coil, module manufacturing and system integration.
Wireless power supply for electric vehicles
Compared with the grand occasion participated by many foreign manufacturers, there are not many domestic institutions studying wireless power supply technology, represented by ZTE, BYD and Chongqing University.
Wireless power supply wi Po Technology
Wireless power supply wi Po technology is a wi Po magnetic resonance wireless charging technology. It uses a high-frequency constant amplitude alternating magnetic field generator to generate a resonant magnetic field of 6.78mhz to achieve a longer transmission distance.
Wireless power supply a4wp standard
Wireless power supply a4wp is the abbreviation of alliance for wireless power standard. It is created by the wireless charging alliance jointly established by Qualcomm, Samsung and Powermat.
Power matters alliance standard for wireless power supply
The power matters alliance standard is initiated by Duracell Powermat, which is a joint venture between P & G and Powermat, a wireless power supply technology company, and has excellent comprehensive strength. In addition, Powermat is also a supporting member of the Alliance for wireless power (a4wp) standard. The power matters alliance standard is initiated by Duracell Powermat, which is a joint venture between P & G and Powermat, a wireless power supply technology company, and has excellent comprehensive strength. In addition, Powermat is also a supporting member of the Alliance for wireless power (a4wp) standard.
Qi standard for wireless power supply
Qi is the "wireless power supply" standard launched by Wireless Power Consortium (WPC), the world’s first standardization organization to promote wireless power supply technology. It has two characteristics of convenience and universality. First of all, different brands of products, as long as there is a Qi logo, can use Qi wireless charger charging.
Inpofi technology of wireless power supply
Wireless charging is a new wireless charging technology based on "invisible power field". Its wireless charging series products adopt intelligent electric transmission wireless charging technology, which has the characteristics of non radiation, high power conversion efficiency, weak thermal effect and so on.
Application of wireless power supply
For wireless power supply or charging devices, the primary and secondary coils are divided into two independent parts, so the coupling between the coils is relatively loose. The system is equivalent to an independent loosely coupled transformer, and ferrite cores are selected to improve its coupling efficiency and reduce magnetic leakage.
Sometimes I feel that the wireless charging mobile phone is very magical, and I really want to know how it realizes wireless charging, so I collect a lot of information and finally understand the principle. If you have the same curiosity, you can have a look at it.
Radiation and non radiation wireless power supply
Wireless power transmission technology is divided into two categories: radiation and non radiation.
What are the technologies of wireless power supply
After bicycle sharing, sharing power bank has become another "window" highly sought after.
New technology of wireless power supply
Wireless power supply is a convenient and safe new technology
Wireless power supply, right in front of you
Wireless power supply has been noticed by scientists more than 100 years ago. And what’s even more amazing and incredible is that wireless power is right in front of us.
Wireless power supply, away from wire cluster
At present, the air separation and sharing wireless power supply appears in the market, which facilitates our work and life, freezes the wire binding brought by wired charging, and can be charged anytime and anywhere.
Advantages of Qi wireless power supply
Qi wireless power supply has two main advantages: convenience and versatility.
Two types of wireless power supply technology
Wireless power transmission technology is divided into two categories: non radiation and radiation.
Three wireless power supply modes
There are three wireless power supply modes for wireless AP charging. However, what are the characteristics of these three modes? Which one is better and more practical
Introduction of wireless power supply
New breakthrough of wireless power supply
The new type of urban rail vehicles with wireless power supply system is a new breakthrough in wireless power supply.
Intuitive understanding of wireless power supply
There is no essential difference between wireless power supply technology and transmitting and receiving technology used in radio communication.
New development of wireless power supply
In recent years, wireless power supply is developing continuously and has made some achievements.
The future of wireless power supply
Wireless power supply is a convenient and safe new technology, without any physical connection, power can be transmitted to the load in a short distance without contact.
Introduction of electromagnetic induction wireless power supply
Electromagnetic induction wireless power supply principle: current through the coil, the coil generates magnetic field, the nearby coil induction electromotive force, generate current
AP wireless power supply
How to supply power with wireless AP? What is AP wireless power supply and what are its power supply methods?
Application of electromagnetic induction wireless power supply
With the continuous development of wireless power supply, wireless charging technology has officially entered the application stage, but many users do not know how to use the wireless charging function of mobile phones.
How wireless power supply meets industry 4.0
Wireless power supply can improve the efficiency, availability and safety of mobile robot system, and there is more information in the vibration chain.
Wireless power supply originated so early, I didn’t expect it!
Maybe the application of wireless power supply in real life is not very popular, but the movie directors with imagination have used the concept of wireless power supply in the film early.
Automatic wireless power supply technology
Automatic wireless power supply technology can improve the efficiency, availability and security of mobile robot system.
The convenience of wireless power supply
The more important significance of wireless power supply technology is that it is possible to open up a new energy access channel for all mankind in the infinite space.
Wireless power is not far away from us
Wireless power supply is a convenient and safe new technology, without any physical connection, power can be transmitted to the load in a short distance without contact.
Watup wireless power supply
Wattup is a new wireless power supply technology, which can achieve wireless power supply operation within 15 feet (about 4.6m).
Electric field coupled wireless power supply
The principle of electric field coupling wireless power supply: it uses the induced electric field generated by coupling two groups of asymmetric dipoles along the vertical direction to transmit power
Diversified application of wireless power supply
With the popularity of smart phones, wireless power supply will expand to more products in the future, including computer peripherals, furniture, medical equipment and other portable devices.
Magnetic resonance wireless power supply
The wireless power supply realized by using magnetic resonance technology can also control the electromagnetic field of the coil, and supply the magnetic resonance to the desired position according to the energy demand of the product.
Principle and function of wireless power supply
With the continuous development of charging technology, wireless power supply technology has officially entered the application stage, but many users do not know how to use the wireless power supply function of mobile phones.
Radio wave power supply
Radio wave type of wireless power supply is one of the ways of wireless power supply. The following is to explain the radio wave wireless power supply.
Wireless power supply can bring many conveniences to our life
Wireless power farewell wire
What convenience will wireless power supply technology bring to people’s production and life?
The origin of wireless power supply
In fact, both wireless charging and wireless power supply are derived from wireless power transmission technology.
History of wireless power supply
Do you know the history of wireless power supply? Where is the origin of wireless power supply?
One of the top ten black technologies of wireless power supply
So, as one of the top ten black technologies, what is wireless power supply?
WiFi wireless power supply
WiFi wireless power supply: 10M distance
What is wireless power supply
What is wireless power supply? Wireless power supply is a convenient and safe new technology, without any physical connection, power can be transmitted to the load in a short distance without contact.
Ultrasonic wireless power supply
How much do you know about ultrasonic wireless power supply? The following is a brief introduction of ultrasonic wireless power supply.
Promotion of wireless power supply
In recent years, wireless power supply continues to advance.
Wireless power supply instantiation
Airvolt wireless charger is wireless power supply
New wireless power supply technology
New wireless power supply technology: Microsoft plans to use focused light to supply power
Wireless power supply, what is it?
Wireless power supply technology is a new power supply technology being developed by scientists of Massachusetts Institute of technology. The principle is to use non radiative wireless energy transmission to drive electrical appliances.
The function of Qi wireless power supply
Qi wireless power supply has two main functions: convenience and versatility.
Wireless power supply, another future
Wireless power supply, will bring another future, "charging" will become an obscure historical term.
What are the advantages of using wireless power supply board
If we use the wireless power supply board, we don’t need to replace the data line frequently.
Wireless power supply can be expected in the future
As mobile devices gradually let mankind get rid of all kinds of wire constraints, wireless charging technology will change from consumer products to household appliances
Development of high power wireless charging
Magnetic resonance technology is suitable for long-distance high-power charging, and now it is mainly used in new energy vehicles and electric vehicle charging pile solutions.
Mainstream wireless charging technology
Now the mainstream wireless charging technology has the following ways
Wireless power supply has been realize
In fact, the short-range wireless power supply technology has appeared more than 100 years ago, and many small things in our life are already using wireless power supply.
New technology of wireless power transmission, bid farewell to the era of socket
Wireless transmission technology was first proposed by Nikola Tesla.
Wireless charging technology
Wireless charging technology comes from wireless power transmission technology, which can be divided into two ways: low-power wireless charging and high-power wireless charging.
Wireless power supply technology
At present, wireless power supply technology is mainly in the research and experimental stage, which is far from practical.
Development background of geomagnetic sensor
Geomagnetic field is the inherent resource of the earth, which provides a natural coordinate system for aviation, aerospace and navigation.
Classification of wireless transmission
There are two categories: wireless energy transfer and non radiation technology.
Wireless power transmission (4) microwave wireless power transmission
In order to achieve long-distance and high-power wireless power transmission, microwave or laser transmission mode can be used.
Principle of magnetic coupling resonance in wireless power transmission
This method requires two resonance systems, transmitting and receiving, which can be made of induction coils respectively.
Resonant wireless transmission
his kind of wireless transmission mode is similar to the principle of wireless communication. The electromagnetic waves of the resonant circuit at the transmitter end diffuse in the whole space in an all-round way, and the resonant circuit at the receiver end resonates at the specific frequency, so as to realize the transmission of energy.
The way of wireless transmission
There are four ways of wireless power transmission, which are electromagnetic induction principle, resonant wireless power transmission, magnetic coupling resonance principle and microwave wireless power transmission.
At the 2009 Ted global conference, American wireless power company successfully used the coil resonance principle to realize wireless power transmission, charged two mobile phones in the air, and turned on a TV without wires.
wireless power supply
Huizhou Exhibition Group Runsheng geomagnetic energy appeared in the 24th National Invention Exhibition
Huizhou Exhibition Group Runsheng geomagnetic energy appeared in the 24th National Invention ExhibitionVideo portalhttps://m.v.qq.com/play.html?vid=j3206suy20l&ptag=v.qq.com%23v.play.adaptor%232&mreferrer=https%3A%2F%2Fv.qq.com%2Fs%2Fvideoplus%2F504879612&second_share=1
What are the benefits of using wireless charging board
Most of the public places are equipped with temporary charging equipment, and the traditional charging equipment mostly adopts charging cabinet. However, with the further increase of market demand, the wireless charging equipment comes out, and the installation quantity of the equipment increases sharply. The follow-up development of wireless equipment improves the bottleneck problem in the early stage, reduces the idle power loss, which indicates that the technology is mature. So what is the advantage of using wireless charging board Where is the place?
The origin and innovation of wireless charging technology
NFC announced to support wireless charging, what do you think?
In our daily life, our most common charging scheme is the power adapter + cable, which will be bound to the patch panel no matter where we go. In this regard, wireless charging obviously has greater advantages, and its convenience and freedom are greatly improved. In the future, wireless charging is bound to be the leading role of consumer electronic products.
Magnetic resonance wireless charging technology and application scenarios of "isolated charging"
Wireless charging technology as an underlying technology, the public is more through consumer electronics products generated intersection. Since 2020, the application of wireless charging technology in consumer electronic products has entered the just needed development stage, with the rapid popularization of wireless charging technology and explosive growth of corresponding products. In particular, the major mobile phone manufacturers, in the pursuit of "greater power" of wireless charging technology, have made every effort to become the leader of wireless charging mode.