In addition to inconvenient charging wireless charging technology news , there is also a drawback that can not be ignored wireless charging technology news , that is, the charging efficiency is too slow! This is huge.It may be due to the heating problem in the electromagnetic conversion process, taking into account the safety of electricity and other factors, manufacturers have to control the power.
The main reason is that the wireless charging current is too small. Wireless charging is limited to material problems and technical problems resulting in low efficiency. Wireless charging is only suitable for use when sleeping, while watching and charging can not keep up. In addition, the wireless charger charger is too large, it is better to plug in the charger directly. The last one is that modern fast charging technology is unmatched by wireless charging.
Although wireless charging is the future direction of mobile phone manufacturers, but in terms of the current development progress, wireless chargingCharging efficiency is still no better than wired charging. Coupled with the charging trouble, the cost is too high, so that this once popular charging method has become less popular. But anyway, with the continuous change of technology, I believe that one day wireless charging can solve the problem of low conversion rate.
Due to the heating problem in the electromagnetic conversion process, taking into account the safety of electricity and other factors, manufacturers have to control the power. This is also a reason for the gradual disappearance of wireless charging. After all, the wired fast charge has developed to 120W, and the fast charge carried by most mobile phones is more than 60W, which has been surpassedWireless fast charging, so wireless charging because of equipment technical requirements, has gradually opened the gap with wired fast charging.
The author thinks that there are several important reasons why wireless charging is difficult to popularize. First of all, practical considerations, although any mobile phone design, configuration technology are not the same, but basically the mainstream functions of everyone has, especially the user's favorite is not left behind, so the functions of smart phones are basically the same, the difference is only the comfort experience and micro-innovation.
And after the street lamp can charge the mobile phone, this similar situation will no longer appear. If the street lights all over the streets can provide help with charging, I think this is also a happy thing for everyone. It is hoped that with the transformation of street lights in Wuhan, street lights throughout the country can have such functions, and we can enjoy such benefits.
I feel the new issue of Jianghan Road with additional functions of the street light novelty and interesting, if there is a chance, IWhen devices are tuned to the same frequency, or resonant at a particular frequency, they can exchange energy with each other, in the same way that sound resonates. Coils of the same vibration frequency arranged in a magnetic field can supply power from one to the other. The distance of resonance transmission is longer than that of ordinary induction.
Electric vehicle wireless charging technology mainly uses the mutual inductance in the law of electromagnetic induction. It is also similar to a transformer, which inputs from the primary coil and then generates an induced current on the secondary coil. It mainly relies on the energy transmission between electricity and electricity, converts electricity into magnetism, and then induces electricity. Wireless charging is simpleIt is to charge electrical equipment through electromagnetic fields or electromagnetic waves without being connected by physical wires.
Wireless charging technology is a special way of power supply, it does not need the power line, relying on the propagation of electromagnetic waves, the electromagnetic wave energy into electricity, and finally achieve wireless charging. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, and ZTE's electric vehicle wireless charging uses induction mode.
This technology is expected to make electronicThe device can be charged wirelessly within 15 feet, and only needs a small chip installed in the device, which does not affect the size of the phone. Energous' WattUp technology will work with the transmitter to make it easy for iPhone 7 users to charge anywhere. In this collaboration with Energous, they have set their sights on the WattUp wireless charging system, which transmits power over the air to provide a truly wireless supply of power to compatible devices at a range of 15 feet. Energous has received consecutive FCC approvals over the past 12 months, and the plan willWattUp charging stations are available in every corner of the home, allowing devices to access power anytime, anywhere.
The WattUp chip, combined with the transmitter, can easily charge the phone in any corner, and even realize automatic charging during sleep at night. Energous expects to commercialize the technology in 2016 or 2017, possibly on the iPhone 7 or 7s. Although the details of Apple's partnership with Energous are confidential, analysts speculate that Apple is a more likely partner based on market dynamics and the company's background.