1, conclusion: Wireless chargers do produce electromagnetic radiation, although the value is usually small, but should be wary of its possible cumulative effect. With wireless chargingWith the popularization of electrical technology, users are exposed to more and more radiation sources in daily life, such as mobile phones, computers, WiFi, etc., and long-term accumulation may have an impact on health. Wireless Charging Technology and controversy With the development of mobile Internet, the rise of wireless charging function has led to a discussion on electromagnetic radiation.
2, for the human body: wireless charging technology is harmless to the human body. The resonance principle used by wireless charging is magnetic field resonance, which is transmitted only between coils resonating at the same frequency, and other devices cannot accept the band, in addition, the magnetic field used by wireless charging technology is itself harmless to the human body.
3, in fact, it is certain to tell you that the harm of wireless charging to the human body is very small, almost negligible. This is like the Wi-Fi, mobile phones, TVS and other electronic products we usually use, and we do not exist between the transmitter and the receiver the radiation level is small, and the main frequency absorbed by the human body is inconsistent with the charging frequency, so we can not worry about the harm of wireless charging.
4, wireless charging technology has radiation to the human body? Does it cause cancer? Tests have proved that wireless chargers can indeed produce electromagnetic radiation, but the value is relatively small. nowUsers are exposed to more and more radiation: computers, tablets, mobile phones, WiFi, TVS, microwave ovens... The cumulative radiation value is very high, and if the user lives in such a high radiation environment for a long time, it may cause serious harm to the body and mind.
iPhone12 can use wireless charging direct charging and wireless charging which is better , can also be charged by wired. Both have their own advantages and disadvantages,Magnetic wireless charging is more convenient, direct, gently close to magnetic charging; Wired charging is faster and can achieve PD fast charging, but it is relatively not so convenient. Magnetic wireless charging Apple iPhone8 began to support wireless charging, to direct charging and wireless charging which good iPhone12 upgrade to MagSafe magnetic charging.
Apple straight. Direct charge can be charged fast, but also can play at the same time, wireless charging time is long and slow, and wireless charging can be done at night when the mobile phone is not used. But the conversion efficiency is the bestAt about 80%, the remaining electrical energy can only be converted into heat energy direct charge and wireless charge which is good , so the heat of wireless charging has been a big problem. High-power wireless chargers also need to be paired with active cooling fans.
The iphone12 has wireless charging. The Apple 12 supports two wireless charging standards: First, Apple provides MagSafe wireless charging, with a maximum output power of 15W; The second is the international standard Qi wireless charging, the highest output power is 15W. Qi wireless charging wireless charging alliance developed the standardAt present, the vast majority of mobile phone manufacturers, such as Apple, Xiaomi, Huawei, Samsung, etc., support Qi wireless charging.
The iphone12 can be charged wirelessly. The iphone12 supports MagSafe wireless charging and Qi wireless charging two charging methods, but the phone does not support wireless reverse charging. iphone12 built-in direct charge and wireless charge which is good a 2775mAh lithium-ion rechargeable battery, relative to nickel-metal hydride battery, lithium battery has high voltage, high energy density, low self-discharge rate, no memory effectShould wait for significant advantages.
1, each has its own advantages: wireless charging is convenient, do not need to connect the phone to the charger, put on the charging board; Wired charging is more stable, and the charging speed is faster than wireless charging.
2, wireless charging good. In wireless charging, the charger and the charged device do not need direct contact, easy to use, strong environmental adaptability, and avoid physical interfaces, so there will be no interface wearSparks, leakage and other problems, in addition to wireless charging can also achieve high voltage, high current, high power charging. The cable is charged. Wireless charging also requires a wired charger, but also more wireless charging board.
3, cable charging is good. In the case of the same charging time, the power of the commonly used wired battery charger is 93% after charging, and the power of the wireless charger is 88% after charging. Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is still room for further improvement in technology.
4, wireless charging and wired charging have their own advantages, which is better to choose depending on the specific use scenarioAnd demand. Advantages of wireless charging: Convenience: Wireless charging does not need to plug in or pull out the charging cable, just put the device on the charger to start charging, very convenient. Aesthetic: Wireless charging will not damage the shell design of the device, making the overall device look more beautiful.
5, advantages To say advantages, there must be a reference. The best reference for mobile phone wireless charging is wired charging, in contrast to wired charging, mobile phone wireless charging has the following advantages: ①, a stronger sense of science and technology Wired charging needs to drag a long data line, ugly and no sense of technology at all. And wireless chargingThe efficiency of direct charging and wireless charging is lower than that of wired charging, but in the future, with the rapid progress of wireless charging technology, it is likely to be better than wired charging in charging efficiency. However, at present, the technology of wireless charging is not advanced enough, so the charging efficiency of wireless charging technology is lower than that of wired charging. At this stage, wireless charging is more as a supplement and auxiliary to wired charging.
Wireless fast charge is neither fast nor slow. Wireless fast charging is much faster than wireless slow charging Direct and wireless chargingWhich is good , slower than the wired fast charge. The power that the charging head wired outputs to the wireless fast charge base is not the wireless fast charge output power but the wireless fast charge input power. Charging time of more than 2 hours of wireless fast charge, not as fast as the wired fast charge of 1 hour and 30 minutes, is not fast charge. Unexpectedly, the wireless fast charging efficiency of 60% when the 18W is charged for 2 and a half hours.
Low charging efficiency Direct charging and wireless charging which good : Compared with wired charging, wireless charging efficiency is low. This means that users take longer to fill upElectricity. In addition, since wireless charging requires energy conversion between transmit and receive, it may lead to reduced battery life. Slow charging speed: Due to the low efficiency of wireless charging, the charging speed is relatively slow. This causes users to have to wait longer to complete the charge.
1, the apple straight. Direct charge that can fast charge direct charge and wireless charge which is good , and can play direct charge and wireless charge which is good, wireless charging time is long charging slow Direct charging and wireless charging which is good , wireless charging can be done at night when the mobile phone is not used. Apple mobile phones use lithium-ion batteries direct charge and wireless charge which is good , lithium-ion batteries have the advantages of fast charging, durable use, and have higher power density and can provide longer battery life in a lighter volume.
2, apple 13 wireless charge is good or straight apple 13 wireless charge is good or straight apple straight. Direct charge can be usedFast charge, and can play at the same time, wireless charging time is long and slow, and wireless charging can be done at night when the mobile phone is not used. This wired charging will be better, some, because you wired charging, it will charge more efficiently, wireless charging, it will be slower. There is nothing good or bad.
3, Apple mobile phone general direct charge and wireless charge which good We are better with direct charge, its charging effect is also a direct point, wireless charging is now a more novel way, but I still accept wired charging is better. I always thought I was richIt's a little more efficient to charge the battery. The iPhone12 can be charged wirelessly or via wired.
4, Apple cable charge well. The advantage of the magnetic magnet is that it can be adsorbated near, and the adsorption can be charged. The charger is automatically aligned with the position of the charging coil, which solves the problem of manual alignment for traditional wireless charging. But it is still a wired form, and the power is not as good as wired charging, so the key moment or wired charging is more realistic. If the MagSafe magnetic charger wants to turn into a regular one, it will depend on when the iPhone removes the charging port.