Like wired charging, the power consumption is very weak, basically no impact. It does not heat up, and even when charging it is very weak.
In theory, the wireless charger is not plugged in, the wireless charger is designed to be easy to use, but if the user does not use the wireless charger when charging, it is best to choose to turn off the power. For phones that support wireless charging, just put the phone downThe charging operation can be carried out in the middle of the wireless charger, which is relatively convenient.
Wireless charger can be plugged into the power supply, the wireless charger is designed to be easy to use, but if the user does not use the wireless charger when charging, it is best to choose to turn off the power. Wireless charging technology comes from radio energy transmission technology, which can be divided into two ways: low-power wireless charging and high-power wireless charging.
Both parties are automatically closed. It can also automatically identify different devices and energy needs for "personalized work", which is intelligent. And the market wirelessChargers are compliant with the QI wireless charging standard for mobile phones. The precautions for the use of wireless charger and wired charger are similar, wireless charger in the case of no charging, it is recommended to unplug the charger data cable, which can better protect the wireless charger and increase the service life of the wireless charger.
Wireless charger does not charge the case, generally he may be standby, almost 1 watt is less than, you do not have to worry about this, almost 0.3 watts or so, so the power is very low, equivalent to a power adapter on the standby side.
Use a wireless charger for battery lifeThe bottom is pulled down, and the biggest possibility is that your coil matching is not good, resulting in the output receiving insufficient power, so the charging voltage will be pulled down. 2, analysis of the reason most models do not support wireless charging because of the technology and cost of wireless charging, generally low-end models do not support wireless charging, only those high-end flagship has wireless charging function. This means that only users who can afford high-end flagship have the opportunity to use wireless charging, the target group is limited, and it is still a relatively small part of the market, which cannot be popularized.
3, please check whether the phone is placed in the center of the back wireless chargeThe center of the panel. 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.
4, currently mainly electromagnetic induction and nuclear magnetic resonance. The principle of electromagnetic induction is that a certain frequency of alternating current in the primary coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end. At present, the most common charging solutionThe solution is electromagnetic induction. It's a common charging plate.
5, of course, now the mobile phone has a current protection system, too large current mobile phone will automatically identify, wireless charging whether charging fast or slow, will not have an impact on the battery. So we see that most electronic products will use lithium batteries, the main reason is that lithium batteries are forbidden to "toss".
6, the mobile phone and the wireless charger are arranged at both ends of the receiving/transmitting coil, the wireless charger current through the transmitting coil to generate a magnetic field, the mobile phone receiving coil close to the magnetic field will generate current, and then through the mobile phoneThe rectifier voltage regulator filter circuit is converted into usable DC. Well, it's a bit of a headache to look at this principle.
Although the electromagnetic induction wireless power supply technology is relatively mature, but this power supply technology will be subject to many limitations, the biggest problem is that the low-frequency magnetic field will decay rapidly with the increase of distance, if the practical application to increase the power supply distance, only according to the need to increase the magnetic field strength, but the increase in magnetic field strength not only increases the consumption of electric energy, but also causes the magnetic signal to be recorded in close distanceFailure of the recording device, such as the magnetic strip on the bank card will be demagnetized under a strong magnetic field. He said to Edison very sincerely, "I have nothing to thank you for. I hear you are interested in telegrams, and if you like, I can teach you how to send and receive them, and make you a telegrapher." These words are said in the heart of young Edison. He gladly accepted McKenzie's offer and followed him to learn how to send and receive telegrams. Edison studied very attentively and made rapid progress. When someone called Edison a genius, he explained, "Genius is one percent inspiration and nine percent.Nineteen perspiration." He in the "invention factory", many different professional people organized, there are scientists, engineers, technicians, workers a total of more than 100 people, many of Edison's major inventions are relying on this collective strength to achieve success.
The parameter configuration of the Haval Big Dog 2024 includes many aspects wireless charging, no-load and power off , such as body size, power system, interior configuration and safety performance. First of all, judging from the body size, the Haval Big Dog 2The length, width and height of the 024 model are 4620mm, 1890mm, 1780mm, and the wheelbase reaches wireless charging and no-load power 2738mm. Such a size makes the car spacious, comfortable to ride, but also to ensure that wireless charging and no-load power good off-road performance.
First of all, from the body size, the 2024 Haval Dog length, width and height are 4620mm, 1890mm, 1780mm, and the wheelbase reaches 2738mm. This size is positioned as compactBut the interior space is spacious, especially the rear seat space, and the flat floor design also improves the riding comfort. Secondly, in terms of power system, the new Hava Big Dog provides two power combinations of 5T 7DCT and 0T 9DCT.
Haval big dog vehicle weight 2000kg, its body length is 4620mm, width is 1890mm, height is 1780mm, wheelbase is 2738mm. The Haval Big Dog is a five-door, five-seat compact suv with a 5L turbocharged engine and a 7dct wet dual-clutch transmission.
HaThe manufacturer of Big dog is Great Wall Motor, this is a compact SUV, engine 5TL4, turbocharged intake, maximum horsepower 169ps, maximum torque 285nm. The gearbox is 7-speed dual-clutch. The body type is a 5-door 5-seater SUV with a top speed of 175 km/h.
Haver big dog maintenance mass is 2170kg, its length, width and height are 4620mm, 1890mm, 1780mm, wheelbase is 2738mm, is equipped with a 7-speed dual-clutch transmission, the maximum speed is 175 kilometers per hour. The minimum ground clearance of the Haval dog is 200mm, and the fuel tank capacityThe product is 61L, the maximum horsepower is 169, the maximum power is 124 kilowatts, and the maximum power speed is 5,000 to 5600 revolutions per minute.
In this circuit, the resonant frequency of inductor L1 and capacitor C1 is set to 1MHz. Because the circuit is in a resonant state, the no-load current is very small even if the receiving coil is not near the transmitting coil. At the receiving end, the resonance principle is also used to improve the efficiency of energy transmission. Schottky diodes are used to rectify signals that pass throughAfter the filter capacitor is processed, direct current is obtained, and then the battery is charged. In the best working condition, the charging current can reach more than 0.6A.
The inductor L1 and the capacitor C1 have a resonant frequency of 1MHz, and because the circuit is resonant, the no-load current is small when the receiving coil is not near the transmitting coil. The receiving end also adopts the mode of resonance, which can maximize the transmission efficiency of energy, and the direct current is obtained by the filtered capacitor after the Schottky diode is rectified, and the charging current is above 0.6A. If the coil is made into a barrel shape, the transmission efficiency will be higher.
Wireless charging coil A6 three 3 coil - inductance 15uH. Inductance basic formula and inductance definition formula: L=μ×Ae*N2/l. Where: L represents the inductance, μ represents the magnetic permeability of the magnetic core, Ae represents the cross-sectional area of the magnetic core, N represents the number of turns of the coil, and lm indicates the magnetic circuit length of the magnetic core. Empirical formula: L= (k*μ0*μs*N2*S) /l. Among them. μ0 is the vacuum permeability =4π*10 (-7).
Through the two inductors, the energy is transmitted coupled, and the alternating current received by the secondary coil is passed through the receiving conversion circuit, which converts it intoDirect current to charge the battery directly. In addition to electromagnetic induction, capacitive coupling mode is also a common wireless charging method. In this mode, no inductor is required, but the electric field of the capacitor is used for energy exchange to achieve wireless charging.
If the vivo mobile phone is used, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, the device that needs to be charged can be charged by contacting the wireless charger after being energized.
Mi Mix 3 wireless charging method is to plug in the wireless charger interface, and then put the phone on the chargerThat's it. Mi MIX 3 appearance, the front is almost all screen, 39 inch AMOLED screen, screen proportion reached 94%, the top of the screen frame also hidden the light and distance sensor, the top of the screen frame in the middle of the phone with a dust screen opening.
The wireless charger is connected to the power supply, and the phone can be charged by gently putting it on. The use of Qi wireless charging standard, support two charging modes 5 watts of universal charging and 10 watts, 5 watts of output power respectively for Mi mix3 fast charging.
Some models of Xiaomi mobile phones support wireless charging. Its model is the Mi 12/Pro, Mi MIX Mi 11/Pro/Ultra, Mi 10S, Mi 10 Supreme Commemorative Edition, Mi 10/Pro, Mi Phone 9/ Transparent Premium Edition /Pro, Mi Mix 3/2S. Power the wireless charger with USB-C data cable through the power adapter, after power, the LED green light flashes three times, you can start to work normally.
At this time should pay attention to whether there is a metal object placed on the wireless charger, please take it off and charge it again. Mi Mix 3 standard with wireless charging no load power : mobile phone host* Minimalist phone case * Power adapter * Mi wireless charger *USB Type-C data cable *Type-C TO AUDIO conversion cable * Pin * Three-pack Certificate * Getting Started Guide *1.
Wireless charging is a charging method that does not require the use of a charging cable to connect the phone and the charger, and can be charged by placing the phone on the charger that supports wireless charging.