Yes. There are two kinds of devices that are relatively easy to break, one is a MOS tube and the other is an electrolytic capacitor. MOS tube heat, if the heat dissipation is not done well, it is easy to burn out.
mAh is the capacity, mA is the current; This appears to be a battery protection board circuit; When charging, the electrode is connected upside down, which could burn the MOS tube. Mainly after the reverse connection, the charger voltage and battery voltage are superimposed and equivalent to (P, P-) output short circuit, which is soon burned. The protection chip IC only detects the battery status and cannot reach the protection start condition, soUse the charger to charge the battery protection board circuit.
There are two kinds of devices that are relatively easy to break, one is the MOS tube and the other is the electrolytic capacitor. MOS tube heat, if the heat dissipation is not done well, it is easy to burn out. Electrolytic capacitor for a long time, easy to bag. From the front, you can see that the bag is usually broken. Electric car chargers are usually fuses blown, rectifier diode D1 breakdown, capacitor C11 bulge.
2, Apple's new patent reveals the new possibility of wireless charging Recently, Apple Inc. submitted a new patent that has attracted wide attention in the industry. imparityIn the common NFC technology on the market, Apple's patent seems to aim at the practical application and efficiency improvement of wireless charging technology.
3, the patent does not detail specific application scenarios, we can only expect Apple to reveal its actual use in a future release. Apple has always been, even after the iPhone 5 was questioned by the outside world lack of innovation, but its actual actions still show the pursuit of practicality and perfection. Wireless charging is not new to Apple, and the introduction of panoramic photography is not new, but Apple has always been able to optimize the technology to the best.
4, Conclusion: Apple IncTo clean up, restart the phone and other operations, and then charge. Charge using USB. Using USB charging, the current is relatively low, so the charge is slower. The hardware is faulty.
2, the mobile phone that can be full of battery power of the phone is now the sub-flagship machine, because now the real top flagship machine does not have particularly high requirements for charging speed. The charging speed has to reach at least 120w or so, and then the battery can be filled in about 15 minutes at 4000~5000 MA, and the performance is relatively strong, then it is paired with Snapdragon 888.
3, Wireless charging mos My mobile phone charging speed is very fast, the charging adapter is 33W, charging the mobile phone is extremely fast charging, the naked eye can see the charging speed, half an hour can fully charge the mobile phone Wireless charging mos. Charging speed depends on the power of the power adapter, let me analyze the difference between big or small power adapter.
4. If you use a Huawei mobile phone, the charge of your mobile phone is slow, you can rectify the fault by the following methods: Reinsert the charger/data cable, for exampleIf the charger/data cable is not plugged in place or the insertion speed is too slow, it may cause slow charging or identify as a normal charging mode.
Field-coupled wireless charging The principle of wireless charging mos is to transmit electrical energy through the induced electric field generated by the coupling of two sets of asymmetric dipoles in the vertical direction. Suitable for short distance charging Wireless charging mos, high conversion efficiency Wireless charging mos, the position can not be fixed; However, the disadvantage is that the equipment is large and the power is small. Therefore, at present, among the four wireless charging methods, electromagnetic induction wireless charging scheme is the most mature and most widely used in business.
Wireless charger is actually the use of electromagnetic induction principle for charging equipment, similar to a transformer, there is a coil at both ends of the sending and receiving, the sending end of the coil connected to the wired power supply to generate electromagnetic signals, the receiving end of the coil induction of the sending end of the electromagnetic signal to generate current to the electrical equipment. As shown in the figure below, current flowing through the coil creates a magnetic field. Its wireless charge mos His unenergized coil will generate a current when it is close to a magnetic field.
Electromagnetic induction Wireless charge mos : 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.
Electromagnetic induction type primary coil a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, thereby transferring energy from the transmission end to the receiving end.