This article gives you a talk about wireless charging and transmitting chip, as well as the corresponding knowledge points of wireless charging and transmitting ic, I hope to help you, don't forget to collect this site. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, Wireless charging emits electricityWhat is a PCBA?
1, wireless charging transmission circuit board (PCBA) refers to the electronic components used to achieve wireless charging function, which mainly includes a circuit board (PCB) and various electronic components installed on the circuit board. Together, these components form part of a complete wireless power transmission system, which is responsible for converting electrical energy into wireless signals and transmitting them to receiving devices. Wireless charging technology usually works on the principle of electromagnetic induction or magnetic resonance.
2, Wireless charging transmission circuit board (PCBA) is an electronic component used to achieve wireless charging function. It is one of the core components of the wireless charging system, responsible for converting electrical energy into wireless energy signals and transmission. PCBA usually consists of multiple components, including power supplies, inductors, circuit control chips, filters, and connectors.
3, the PCBA board is green, and is distributed around the central coil in a ring shape. Remove the PCBA. A piece of thermal foam is attached to the back of the panel. Wireless charging front, wireless charging coil in the middle, no components on the back of the circuit board. The front of the circuit board is a magnetic separator, and the circuit board is inverted. Compare the size of a $1 coin. Wireless charger all components. IDT P9237 wireless charging transmitter controller. Type-C interface sinking plate welding. External memory of IDT scheme.
4, Disassembly reveals its precise construction: zinc alloy bracket provides solid support, internal PCBA board integrated withoutLine controller and power chip, wireless charging control at your fingertips, thanks to the powerful wireless charging chip Zhirong SW5001. SW5001 chip with 5V/50mA power supply, built-in comprehensive protection measures, but also with I2C interface, flexible voltage division to 5V/9V/12V, to ensure efficient and stable device charging.
5, the shielding cover plate is made of precision PCB board, covered with a layer of shielding copper foil, its main role is to effectively reduce electromagnetic radiation interference, to ensure the stability and safety of wireless charging. Going deeper, we'll find the inside of the aluminum shielded housing, the rowsConnect to the power supply: Connect the wireless charger to the AC power supply and ensure that the charger is in working condition. Place the device: Place the device that needs to be charged (such as a mobile phone) on the charging area of the wireless charger. Make sure there are no obstacles between the device and the charger, such as metal objects or other electronic devices. Start charging: When the device is correctly placed in the charging area, the wireless charger automatically senses and starts charging.
3, the use of wireless charger is very simple. First, make sure your device supports wireless charging. Second, connect the wireless charger to a power source, align it with your device and place it on itTo start charging. Device compatibility: Before using a wireless charger, make sure your phone or other device supports wireless charging. Most modern smartphones have this feature.
4, in wireless charging, because the current and voltage are small, the charging speed is relatively slow. It is better to remove the protective shell of the phone when charging, so as not to affect the charging efficiency of wireless charging. Use the original wireless charger for charging operation, to prevent the non-original charger to supply lithium battery current and voltage instability, affecting the service life of the mobile phone battery.
5. Use wirelessJust connect the USB cable to the charger and plug it into the socket. When the battery is out of power or about to be out of power, put the phone on the charger board. The charger and the phone will be connected and charged in an instant, and the battery icon at the top of the phone screen will also show the charging status.
6, connect one end of the data cable to the charger, and then plug the charger into the power socket, and connect the other end to the wireless charger. The charging area of the mobile phone with wireless charging function can be aligned with the front center of the wireless charger.
WPC chip refers to the chip used in the Wireless charging standard introduced by the Wireless Power Consortium (Wireless Power Consortium). It can realize the wireless charging function between different brands of smart devices, which is convenient for users to wireless charge in different occasions, without the use of cables and plugs. WPC chips have been widely used in smart phones, tablets, watches, headphones and other electronic devices. The main working principle of WPC chip is electromagnetic induction charging.
WPC certification: mainly used in India, is an Indian pipeFor wireless regulatory bodies, all wireless products must be approved by the WPC before entering the market. BQB certification: That is, Bluetooth certification, the product has Bluetooth function and indicates the Bluetooth mark on the appearance of the product, and must pass a certification called BQB (Bluetooth Qualification Body).
Core chip is one of the difficulties in the application of wireless charging technology in products.
AP45851 is a charging IC used in wireless charging and launching systems, compatible with the Qi protocol. The product is fully functional and highly integrated with all functionsThe energy module provides excellent performance. The AP45851 is compatible with high power output, and the chip is compatible with the Qi fast charge protocol (5/9/12V application), which meets the latest Wireless Charging Alliance (WPC) Qi version specifications.
The most used receiver is Ti's chip, about 12 pieces. There are many options for launch, and we're one of them.
Among them, Shanghai Fudan Micro Company is the only WPC-accredited Associate-Inc MCSP in China, while most other MCSPS are Regular or Adopter level. As a kind of security chip, the authentication chip is used to ensure the security of the identity of the Internet of Things device, and realizes the security algorithm and key protection through the hardware. In the Qi 0 certification process, the acquisition of the product unit certificate is actually a part of the authentication chip certification.
Electromagnetic induction: Simple and efficient intimate contact electromagnetic induction, just like a pair of tacit dancers, the sending end and the receiving end transfer power through the induction magnetic flux. It is known for its simple structure, high efficiency and low cost, and is especially suitable for close-range device charging. However, it also has limitations, limited transmission distance and strict location requirements, requiring accurate alignment to charge, as shown in Figure 4-1.
Wireless chargingThe principle of wireless charging is to transfer energy to the device that needs to be charged through electromagnetic induction or electromagnetic radiation. Specifically, wireless charging is divided into two ways: electromagnetic induction and electromagnetic radiation. Electromagnetic induction: Through the principle of electromagnetic induction, the current at the transmitting end is converted into a magnetic field, and then the energy is transferred to the receiving end through the magnetic field, and then the energy is converted into current, so as to achieve wireless charging.
The core of wireless charging technology is the principle of electromagnetic induction. When a coil is fed with alternating current, it creates an alternating magnetic field. If another coil is placed in this magnetic field, it will also induce an electric current. This is the basic principle of energy transmission through magnetic field coupling. Wireless charging devices are divided into two types: receiver and transmitter. The receiving end is responsible for converting the received electromagnetic wave into electrical energy to charge the device.
Wireless charging PCB, different functions, the required components are different. The required components are: resistor, capacitor, resonant capacitor, resonant coil,MOS tube, control chip, protocol chip.
Wireless charging function requires a wireless transmitting module and receiving module, now the new mobile phones launched by major mobile phone brands on the market have built-in wireless charging receiving module, some mobile phones without built-in receiving module need to be connected to an external receiving chip, the use of the receiving chip is also very simple (plug into the mobile phone charging port); The wireless charger needs to be connected to the power supply, but the phone can be placed on the wireless charger for wireless charging of the phone.
iPhone11 As Apple's flagship iPhone11 also supports wireless chargingElectricity, but relative to domestic mobile phones, the charging rate may be slower, but other aspects are still very strong, such as iPhone11 has a variety of different colors to choose from, but also the new addition of green and purple, very small fresh.
For example, two coils are used as resonators, the transmitting end vibrates at 10MHz to radiate an electromagnetic field around, and the receiving end needs to vibrate at 10MHz to receive the transmitted energy. Compared with electromagnetic induction, based on magnetic resonance, wireless charging achieves long transmission distance, efficient power supply, and is aPower supply mode to multiple.
These phones are widely praised for their brand recognition and advanced technology. For example, the Mi 9 is equipped with the world's first 20W wireless flash charging technology, while the Samsung S10 series supports wireless accelerated charging and wireless shared charging technology. Huawei Mate20PRO was a leader at that time, with reverse wireless charging function. When buying a phone that supports wireless charging, there are a few things to be aware of. First, make sure the coil of the wireless charger is properly aligned with the phone.
This is the end of the introduction of wireless charging, transmitting and receiving chips and wireless charging and transmitting icYeah, I wonder if you found the information you need? If you want to know more about this, remember to follow this site. < / p >