Dear Samsung users: Hello, some Samsung mobile phones support wireless charging function, to achieve the function requires a separate charging kit, wireless charging and wired charging effect is the same, but wireless charging time is relatively longer, no impact on the phone.
Internal reception function of the mobile phone, put directly on it! It is said that some should pay attention to the location! No built-in connectionGood help for you on the road. The price of about 20 yuan is an affordable and satisfying choice for most consumers.
Portable USB charging small fan is more practical. Portability: These fans are usually small and can easily fit in a bag or pocket, making them ideal for use in the office, outdoors, or while traveling. For example, on a crowded bus or while waiting in line, a small fan can bring you a bit of cool.
Therefore, a mini electric fan with strong wind speed and the right amount of air is the best choice. Battery life and charging mode take mini electric into accountThe portability of the fan, battery life and charging method are also one of the factors that need to be considered when we choose. A good mini fan should have a long battery life and support a convenient charging method.
The purchase of electric fans can be considered from the following aspects. First, define the usage scenarios and requirements. There are many kinds of electric fans, including floor fans, table fans, wall fans, ceiling fans, etc. Different types are suitable for different occasions. For example, the floor fan wind, suitable for the living room or bedroom; Small and portable desk fan, suitable for desk or bedside use; Wall fans and ceiling fans are suitable for large Spaces,Such as restaurant, meeting room, etc.
The Viken portable fan has three adjustment gears to meet the needs of different periods. The wind will not be very exciting. Viken portable fan feel is relatively good, the color is more beautiful. Saiyi Saiyi portable fan is small and exquisite, and can be carried everywhere. The noise is relatively low and the Saiyi portable fan is very convenient to use. And you can plug it into a power bank. You don't have to worry about running out of electricity when you use it outside.
How to buy a mini fan: Functions: There are many functions of the mini fan, such as adjustable wind speed, shaking head function, settingWhen function, etc. Choose the function that suits you according to your individual needs. Appearance: The appearance of the mini fan is also an important consideration, and you can choose your favorite color and style.
It is recommended that you use the standard charger to charge the phone. Although other third-party chargers can also charge the phone, they may cause problems such as heating due to differences in charging specifications or charging protocols.
Optimize your wireless charging conversion efficiency as much as possibleMake algorithms to enhance your cooling effect add heat sink or air cooling. The general wireless charging scheme will have a temperature control circuit and NTC thermistor, this function is mainly to prevent the heat generated by the circuit in the process of working is too high, burn components and so on.
Generally, the use of metal heat dissipation can reduce the heat transmission to the mobile phone, thus affecting the charging power of the mobile phone, which is bound to increase the metal block on the circuit board or coil, which is similar to the notebook CPU plus copper tube heat dissipation. Or increase the active fan heat dissipation, and use the fan to cool the motherboard and coil, which can achieve the delay power reductionTime.
At this time, the solution is: replace the official original wireless charger. It may be that the protective shell of the mobile phone is too thick, resulting in low efficiency of the wireless charging mode, and the heat of the mobile phone can not be discharged through the fuselage when the heat is released, resulting in heat of the mobile phone. The solution at this time is: remove the phone shell and recharge it. It may be that the background application of the mobile phone is opened too much when the wireless fast charge is carried out, resulting in an increase in the power consumption of the mobile phone CPU, which causes the mobile phone to heat up.
1, this situation is not normal, the general mobile power supply will not make a sound. The reasons for this situation may be: 1, there may be water vapor on the mobile power motherboard, resulting in a slight short-circuit sound on the motherboard. 2, the mobile power motherboard in the process of boosting the sound, but the sound is usually very small, almost inaudible.
2, I think it is related to the charging device, Xiaomi's 80W wireless charging base built-in cooling fan, charging the default open speed wireless charging mode (feel loud can be manually closed), we are in the process of chargingYou can hear the "buzz" sound of the fan, and you can feel the cool wind from the fan when your hand is near the bottom of the wireless charging seat. I hope I can help you.
3, Mi wireless charging mainly relies on the electromagnetic coil scheme for energy transfer, if there are too many obstacles between the coils, it will not only affect the charging power, but also lead to the aggravating of the heating problem, so it is also recommended that you take off the heavy mobile phone case when wireless charging. Let the phone "naked" lying on the wireless charging seat is better.
4, and the current and voltage relationship. The constant sizzling sound comes from movingThe inductor coil inside the power supply. The mobile power supply needs to start the inverter circuit when the inverter circuit works to produce a certain frequency of alternating current, which belongs to the audio range, and needs to be converted by the inductor coil, under the action of the larger current, the coil will vibrate, and the generated sound will be transmitted, so there is a small squeak.