Qi is the world's first standardization organization to promote Wireless charging technology - Wireless Power Consortium (hereinafter referred to as \"Wireless Power Consortium\"). Alliance ") Launched. Wireless charging " The standard has two characteristics of convenience and versatility. First of all, different brands of products, as long as there is a Qi logo, can be charged with Qi wireless charger.
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Second, it conquers wireless charging. Versatility " In the near future, mobile phones, cameras, computers and other products can be charged with Qi wireless chargers, providing the possibility for large-scale applications of wireless charging. & # 34; Qi" This icon is " in Chinese; Gas; The Pinyin (Qi), meaning is " Represents in Asian philosophy. Vitality " - An invisible energy.
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The Qi wireless charging system consists of base stations and mobile devices. The base station contains one or more emitters that provide the energy to be received. The mobile device contains a receiver that provides power to the load (such as a battery), and the receiver also provides information to the transmitter. An energy conversion unit in the transmitter converts electrical energy into a wireless energy signal, and an energy collection unit in the receiver converts the wireless energy signal into electrical energy. The receiver will deliver power to the load as needed, and the transmitter will adapt the energy transfer according to the needs of the receiver.
Qi wireless charging refers to the application of Qi wireless charging standard in the way of electromagnetic induction for mobile phones, cameras and other handheld low-power equipment wireless charging technology.
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Qi Wireless charging standard by the Wireless charging Alliance (Wireless Power Consortium, referred to as WPC) initiated and developed, is currently the world's widely recognized wireless charging standard.
The answer is that qi wireless charging refers to the principle of LC oscillating circuit is that coil L and capacitor C are constantly discharging and charging, and there will be a current in the circuit that is changing in size and direction, to achieve the transformation of q and i, that is, charging.
The constant change of current i in coil L has a self-inductance effect, hindering the change of current, and the charge quantity q in capacitor C is constantly charged and discharged. In this process, the q on the capacitor plate and the current i in the circuit all change periodically, which is the electromagnetic oscillation process.
It is the technology that uses electromagnetic induction to charge the instrument.
Wireless charging technology is generally difficult to achieve, it is mainly through electromagnetic induction to achieve full power, different from traditional wired charging
It means electromagnetic induction technology wireless charging, also known as Qi standard wireless charging. At present, most of the wireless charging applications of the latest models of Xiaomi, Huawei and Apple on the market use this method. Users can place the phone on the charging dock to charge without the need for a charging cable.
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The working principle is that the wireless charging base and the mobile phone are respectively installed with a transmitting coil and a receiving coil, and the electromagnetic induction phenomenon is used. When the two are close, the transmitting coil in the charging base is connected with an alternating current to generate an alternating magnetic field. The change of the magnetic field makes the receiving coil generate current, thereby transferring energy from the transmitting end to the receiving end, that is, the charging base supplies power to the mobile phone. The advantage of this method is that the charging efficiency is high, and the charging efficiency of smart phones can reach 80%, but the disadvantage is that the charging distance is short, and the phone usually needs to be close to the charging base.
qi wireless charging is a kind of electromagnetic pulse to achieve wireless charging, the basic principle to have two groups of coil emission group to accept a group of electricity a group of induction, this principle and the principle of high voltage pack is probably consistent than I said complex talk about the advantages, save the wired connection is not trouble, the disadvantage of high-capacity battery charging unsaturated, can not reach the battery charging value, It's a very small distance a few millimeters like a charger.
Qi is the \"Wireless charging\" standard launched by the Wireless Power Consortium (WPC), a standardization organization that promotes wireless charging technology, which has two characteristics of convenience and versatility.
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Advantages of Qi certification:
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1, prove that the performance of the product meets the requirements, and achieve a certain level of safety;
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2, the product plus Qi logo, means that different brands and models through the certification of the terminal can be compatible;
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3, increase high-quality buyer attention opportunities, especially in North America and Japan and South Korea markets;
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4, enhance the corporate image, and product value, especially the current market wireless charging product market is uneven.