Please check whether the phone is centered on the backLine charging board center. When there are inclusions between the mobile phone and the wireless charging pad, it may not be able to charge normally. Please check the back of the phone. If the protective phone cover used is too thick may hinder wireless charging, it is recommended to remove the phone cover and try to recharge. Please use the original charger. If you use a non-original charger, you may not be able to charge normally.
Check whether the charger has an output, check whether the charging excuse has an open welding or input, check whether there is a normal current through the circuit, check whether there is an input at the battery charging input, check whether the battery is faulty. The basic structure of the vacuum cleaner is divided into five parts according to functionThe received energy charges the battery and at the same time feeds it for its own operation.
Restart iPhone wireless charging If the iPhone is suddenly not charged, it may be because there are unpredictable errors in the update of the iOS system, which will cause problems with the wireless charging function, usually as long as the restart can be solved. Remove the iPhone case Sometimes the iPhone case is too thick will also lead to wireless charging, then you can try to remove the iPhone case, and then put back on the wireless charging board to charge.
If it works, it's fine. It's insideAn electromagnetic conversion coil, not scratched coil will not affect the charging effect. Cut off can not charge, short circuit will overload or even harm the charging head.
This should not matter much for your mobile phone use, but your wireless charging may be damaged, it is recommended to use a data cable to charge.
If the black panel under the wireless charger coil cracks, replace it with a new one immediately. Because if the panel cracks, it's a safety hazard. If it is cracked, it may leak electricity, and if it leaks electricity, the first will lead to the mobile phone cannot be charged, and the second will lead to electric injuries.
It doesn't matter. If the damage is small, it doesn't matter. Because there's a black tape on the outside. It's not that easy to break inside. If you pry it, it'll be fine. It'll just affect the charge. It has no effect on other functions of the phone.
2, in the range of ravg 0~ 0.08m, the output power increases first and then decreases with the increase of coil turns; The ravg is 0.08~ 0.4mWithin the range, the output power decreases first, then increases and then decreases with the increase of the number of turns. For a fixed operating frequency, the quality factor Q mainly depends on the shape and size of the coil and the material used. Standard coil technologies (such as wire winding coils and PCB coils) generally specify quality factor values. 3, control chip
Wireless copper charging machine : manage the entire wireless charging process, including voltage regulation, power control, communication and other functions. Power amplifier (PA) Wireless copper wire charger : increasedIncrease the signal strength in order to transmit energy efficiently. Oscillators and modulators: Generate high-frequency AC signals for wireless transmission. Coils: Used to generate or receive electromagnetic fields, are a key part of wireless charging.4, 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.
5, the mouse pad corresponds to the wireless charging part of the upper hollow, reduce the thickness, maintain consistency. The wireless charging circuit board and coil are attached to the aluminum base plate. Compare the size of a $1 coin.The back of the magnetic separator is insulated with high-temperature tape, the PCB capacitor position is hollowed out to reduce the thickness, and the back has no components. Wireless charging part, the circuit board is more concise. Giga Device MCU GD32F350K8U6 64K FLASH 8K SRAM. Microcontroller detailed parameters.
6, for a well-designed PCB, when the same silicon device is welded to a similar printed circuit board under the same electrical load conditions, the θJA data size can range from 45 ° C /W in a CSP package to 25 ° C /W in an equivalent QFN package (from IDT P90)23 wireless charging receiver reference data), compared to the equivalent QFN, this difference means that the CSP will operate at higher temperatures.
1. The electric vehicle wireless charging technology transmits electric energy in the form of high-frequency alternating magnetic field through the power supply guide rail buried under the ground to the electric energy picking mechanism running in a certain range of the vehicle receiving end, and then supplies power to the vehicle energy storage equipment. When charging begins, the power transmitter PTx generates an alternating current through its coils, thus depending onFaraday's law produces alternating magnetic fields. 2, the breakthrough of vehicle wireless power transmission technology is to find a way to "grasp" electromagnetic waves, that is, to use the "resonance" principle of physics - two objects with the same vibration frequency can efficiently transmit energy. The system consists of the main circuit located outside the car and the secondary circuit, rectifier and drive system located inside the car. 3, the principle of wireless car charger is to use ampere's law and Faraday's law, through the time-varying magnetic field generated by the power transmitter, generate electromotive force in the appropriately positioned power receiver, so as to charge the mobile phone.The mainstream wireless car charging has two ways of front loading and rear loading. Let's take a look at the principle of wireless car charging.
Wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base.
The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and converted into a currentSend to smart terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. After passing through the power management module, the output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.
Wireless charging system mainly adopts the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of the magnetic field generated between the coils, the magic transmission of electric energy, inductive coupling technology will become the connection charging baseStation and equipment bridge.
Energy is transmitted by the power supply device (charger) to the electrical device, which uses the received energy to charge the battery and at the same time for its own operation. Since the energy is transmitted by inductive coupling between the charger and the electrical device, there is no wire connection between the two, so the charger and the electrical device can be no conductive contact exposed. Wireless charging mainly uses the principle of electromagnetic induction, magnetic resonance and radio wave technology.
1. The Sensationalist HuntThis play does not sound like a good play wireless copper wire machine , but it will be deeply attracted when it is opened, the plot is very good, the protagonist is more, but in the camera to each story more time is very wonderful. The show opens with a woman committing suicide. At the same time, 8 people from different countries and different cities realized the wireless copper wire machine .
2. According to the PUI formula, the maximum power that a 5 square copper wire can carry is 220152750W. Generally speaking, the power consumption of a desktop computer is about 300W, so the power consumption of 8 computers is about 2400W. This means that five square cables can carry the power consumption of eight computers. However, it is necessary to take into account the power consumption of other appliances and leave a certain amount of redundancy, so it is best to choose a cable of 4 square or more. 3, the author starts from the small things in life, telling people to take the initiative to pursue what they want, even if they encounter setbacks, they must face it bravely, and believe that "the sun is always there." For literature, Ding Limei believes that the greatest power is to give people warmth and peaceHope teaches people how to love. She hopes that her words are sunny, warm, positive, upward, and give people real comfort and comfort.
4, "Together to watch meteor shower" (also known as "Together to watch meteor shower 3") is a large-scale youth campus inspirational idol drama shot by Hunan Satellite TV, which is another work of Hunan Satellite TV after "Together to watch Meteor shower" and "Together to watch meteor shower". The play is mainly about friendship and love among young people. Currently in preparation, shooting will begin after the Spring Festival in 2012, and it will be broadcast on Hunan Satellite TV weekly in 2013.
5, [2] The attendance of the 12th China-South Korea song festival HIT-5 also caused a great response, according to the person in charge of KBS TV station, the audience rating of the China-South Korea song festival HIT-5 reached 17% during the broadcast period, refreshing the record of Chinese artists in South Korea.
6, Ding Limei, pen name plum. Member of Chinese Writers Association. "Reader", "Youth Digest", "Special Attention" and other popular magazines signed writers. Member of the expert group of Jiangsu Provincial Extracurricular Reading Steering Committee. Like to boil words with music.