On October 10, Millet officially released this new mobile power product - Millet wireless charging treasure youth version 10000mAh. Compared with the old Xiaomi wireless charging treasure 10000mAh currently on sale, the overall appearance design of the Xiaomi wireless charging treasure youth version has changed little, and the color has been increased to black and white, which is more young and fashionable. The material of the youth version of the shell has been changed from metal to plastic, and the function has been slightly reduced, so the price has been reduced by 20 pieces.
Compared with the 10000mAh wireless charging treasure currently on sale, the youth version is basically consistent in appearance design, but the new black and white color choice is more young and fashionable. The shell material is changed from metal to plastic, and the function is slightly reduced, so the price is reduced by 20 yuan.
Thermistor in wireless chargingThere are over current protection, over voltage protection, under voltage protection, temperature protection, short circuit protection, foreign body protection, overshoot protection, magnetic field protection and other functions. In particular, the temperature protection design, because the magnetic field produces heat after the temperature, when the magnetic field is constantly generated when charging, the temperature will be higher and higher, so the temperature protection is installed in the NTC thermistor to monitor and protect the wireless charging, it is to monitor the temperature around the coil.
A temperature detecting NTC thermistor is buried next to the charging circuit and battery, and the MCU works together to track the instantaneous temperature change of the wireless charging operation.
Improve your wireless charging conversion efficiency as much as possible, optimize the control algorithm, enhance your heat dissipation 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.
For high-power wireless charging roads such as new energy buses and new energy load trucks, whether they use constant current or constant voltage charging methods, due to high charging voltage and large charging flow, a time-constant power type NTC thermistor can be set at the input voltage entrance of the transmitting endTo prevent or weaken the harmful impact of the surge current on the four MOS tubes, to increase the life of the MOS tube and reduce the failure rate during charging.
General wireless charging program will have a temperature control circuit and NTC thermistor, this function is mainly to prevent the circuit in the process of working to generate too much heat, burn components, etc., can also control the power components after generating too much heat, reduce the power, thereby reducing the temperature, this function is very important. Therefore, the wireless charging of the qi standard is originally the use of electromagnetic induction to generate current and promote the circuit to work.
beeThe shell is disassembled, and the edge is sealed with clasps. The PCB board is fixed with screws, the wireless charging coil is fixed on the battery core, and is covered with foam protection. A thermistor is fixed on one side for temperature monitoring. Take out the PCB board and electric core, the body shell is affixed with protective foam, the corresponding circuit board and electric core junction is provided with an isolation board.
2, Green Link MFi certified 10000mAh two-way fast charge mobile power supply This mobile power supply stands out with its exquisite design. It uses PC flame-retardant material, the shell lines are rounded, the laser engraving texture adds a touch of science and technology, and the UGREEN brand Logo stands proudly. There are four LED power indicators on the front, which are clear and intuitive, and the power button on the side is convenient to operate. The Lightning output line is cleverly designed and stored in the internal cable slot, which is practical and neat.
3, the power absorption treasure is a magnetic charging treasure and magnetic charger, such as green link's magnetic charging treasure is good. Green Link Three-in-one MagSafe magnetic wireless charging Bank is a three-in-one MagSafe magnetic wireless charging bank, using Apple's ATL battery, providing a strong magnetic design. Of course, also wireless wired dual mode fast charging design, plus can be transformed into a mobile phone stand, usedI'm charging up and I'm watching this thing. Wireless charging provides 10W, 5W, 5W charging.
1, if you are wireless charging, because there will be energy loss in the wireless transmission process, and then produce a certain amount of heat, there will be a phenomenon of wireless charging heat, this is normal.
2, mobile phone charging heat is a normal phenomenon, especially support fast charging, super fast charging mobile phones, when charging, the current and voltage is larger, so the temperature will be higher than ordinary charging. To avoid handMachine heat is serious, it is recommended that you: (1) use the standard charger to charge.
3, the mobile phone will have some heat when charging, which is normal, because there will be a certain loss of electrical energy in the charging process, this part of the electrical energy into heat will make the mobile phone and the charger to keep warm, such as the use of mobile phone temperature will be higher when charging. 4, in general, although it is normal for mobile phones to heat up while wireless charging, continued overheating may pose a potential danger. Therefore, it is essential to maintain proper charging conditions and observe the temperature changes of the phone.
5, 【 Pacific MotorBMW 5 series wireless charging mobile phone hot is not normal. Because the mobile wireless charging device of the mobile phone in wireless charging, the heat itself is serious, if the heat continues, it will cause irreversible damage to the components of the mobile phone, including the motherboard and battery, so the equipment manufacturer can only reduce the temperature rise by reducing the charging current, so when the temperature of the mobile phone reaches a certain threshold, its wireless charging efficiency will be very slow.
Charge from previous cell phoneElectricity needs a charging line to charge, to the current wireless charging, it can be seen that the development of science and technology continues to improve. The typical characteristic of thermistors is that they are sensitive to temperature and show different resistance values at different temperatures.
A temperature detecting NTC thermistor is buried next to the charging circuit and battery, and the MCU works together to track the instantaneous temperature change of the wireless charging operation.
The thermistor in wireless charging has over current protection, over voltage protection, under voltage protection, temperature protection, short circuit protection, foreign body protection, overshoot protection, magnetic field protection and so on. Especially the temperatureProtection design, because the magnetic field generates heat after the temperature, when charging the magnetic field is constantly generated, the temperature will be higher and higher, so in the temperature protection installed NTC thermistor to monitor the protection of the wireless charging, it is to monitor the temperature around the coil.
General wireless charging program will have a temperature control circuit and NTC thermistor, this function is mainly to prevent the circuit in the process of working to generate too much heat, burn components, etc., can also control the power components after generating too much heat, reduce the power, thereby reducing the temperature, this function is very important. 04 FeverSelection of components.
Close-up of wireless charging coil, tightly wound, with a thermistor in the center for temperature monitoring. Printed antenna on the left side of the board. Inside the shield is an IC connected to the printed antenna for wireless connection.
General wireless charging program will have a temperature control circuit and NTC thermistor, this function is mainly to prevent the circuit in the process of working to generate too much heat, burn components, etc., can also control the power components after generating too much heat, reduce the power, thereby reducing the temperature, this function is very important. So qi standard wireless chargingElectricity is originally the use of electromagnetic induction, generate current, drive the circuit to work.
Improve your wireless charging conversion efficiency as much as possible, optimize the control algorithm, enhance your heat dissipation 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.
It is normal for the phone to heat up during wireless charging, but overheating can be dangerous. wirelessCharging technology uses the principle of magnetic coupling to transfer electrical energy between the transmitter and the receiver. In this process, part of the electrical energy will be converted into heat, causing the phone and charger to heat up. This is a common phenomenon of wireless charging and does not mean there is a danger.
Generally there is heat when charging the mobile phone at normal room temperature, the heat does not exceed 60℃ is a normal phenomenon, it will not damage the battery. The characteristic of wireless charging is that there is no limitation of charging line, and there is a feeling of random throwing when charging, which makes people feel that picking up and putting back is very frequent and will hurt the battery, in fact, it is mainly by nickel-metal hydride a long time agoThe impact of batteries.
The reasons for this are as follows: Too many background programs: you can properly close the background running; Caused by abnormal mobile phone charger: When replacing the mobile phone charger, it is necessary to replace the charger that matches the mobile phone according to the model of the mobile phone.
In fact, we all know that as long as it is charged, it will cause damage to the battery, but wireless charging and wired charging are compared, wireless charging will cause more damage to the battery, because wireless charging will generate more heat, and the heat generated will cause more damage to the battery. Line charge Whether the battery is charged by the phone insideThe initial voltage for the normal operation of the mobile phone's internal control circuit is provided by the battery.