1, Qi is the world's first standard to promote wireless charging technologyThe Wireless charging standard launched by the Wireless Power Consortium (hereinafter referred to as the Alliance) has two characteristics: 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.
2, 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. The Qi Wireless charging standard is developed by the Wireless Power Consortium, referred to as WPC, is the world's widely recognized wireless charging standard.
3, Qi is the world's first to promote Wireless charging technology standardization organization - Wireless charging Alliance (Wireless Power Consortium, referred to as WPC) launched the "wireless charging" standard, with convenience and versatility of the two characteristics. Different brands of products, as long as there is a Qi logo, can be charged with Qi wireless charger.
4, Qi means "in Asian philosophy stands for" _ "- an invisible energy.Will stop running. Fixed frequency technology is widely used in various household appliances and some small mechanical equipment. Frequency conversion means that the voltage and frequency can be adjusted as needed when the appliance is running.
Fixed frequency and frequency conversion refers to the motor drive mode. Fixed-frequency motor means that the speed of the motor is fixed and cannot be adjusted. It is usually driven with a fixed voltage and frequency, such as 50Hz AC power supply. The advantage of the fixed frequency motor is simple and stable, and the disadvantage is that the speed can not be adjusted according to the actual demand. Variable frequency motor is a motor that can adjust the speed according to needs.
Fixed frequency, that is, after power, only doTwo things, one thing is to keep moving at a speed, one thing is to stop. The thing to do is to start at a speed, and then run according to the actual speed needed.
According to our understanding, frequency conversion is actually to change the power supply frequency, so as to adjust the load, reduce power consumption, reduce loss, extend the service life of the equipment and so on. The constant frequency appliance is that the speed of the compressor is fixed and unchanged, after reaching the set temperature, the compressor stops running, and when the temperature rises to a certain point, the compressor restarts.
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Momis Wireless charger UD13D Features: ultra-thin body design Praise rate: 95 Momis wireless charger UD13D is a charger that supports 15W wireless charging, and only wireless charging is supported. The product is designed with disk shape, small and flat, and does not occupy an area. The bottom metal body is resistant to wear and increases the texture and stability of the product. Products support 15W output, backward compatible with 10W, 5W and other wireless charging modes, and passed the FCC, CE, RoHS certification.
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Today I recommend a few chargers, one is Nanfu aircharge, selling 500,000 pieces, the first in the whole network, all the features have, cost-effective, this support 10W fast charge. The second is Envis Apple wireless charge, which is characterized by being able to automatically identify what brand is on the phone, such as Apple, or Android, and then will be based on itMobile phone for adaptive charging, also support 10W fast charge.
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Different. Qi2 is the latest wireless charging standard officially released by WPC (Wireless Charging Alliance) on March 21, 2023. Compared to the previous Qi1 protocol, Qi2 introduces MPP (Magnetic Power Profile) technology, based on the development of MagSafe magnetic charging technology. This updated standard is designed to provide a better wireless charging user experience, paving the way for the development of new features and enhancements in the future.
Qi2 charger is a wireless charging device based on the Qi standard, which uses electromagnetic induction technology to provide wireless charging capability for electronic devices. Qi is the world's first noneThe line charging standard was developed by the Wireless Power Alliance (WPC). It uses electromagnetic induction technology to transmit electrical energy from the charging device to the receiving device. The Qi standard aims to achieve the standardization and universality of wireless charging, so that different brands and models of equipment can be wireless charging through the Qi standard.
Qi2, is an innovation in the field of wireless charging. Since its inception in 2008, the WPC Wireless Charging Alliance has been committed to promoting the standardization of wireless charging technology worldwide. The Qi2 standard is based on the Qi 3 protocol, introduces the MPP protocol and magnetic alignment technology, and the operating frequency is increased to 360kHzThe foreign body detection function is enhanced, and in MPP and EPP modes, it provides 15W efficient transmission capacity, and it is expected to achieve higher power wireless charging in the future.
Security and protection: qi has been enhanced in terms of security, including the protection of electromagnetic interference and the improvement of safety mechanisms, using a variety of safety measures to ensure the stability and safety of the wireless charging process, while qi2 has been further optimized and strengthened in terms of security, using more stringent safety standards and protective measures to prevent potential security risks and electromagnetic interference problems.
Wireless charging means no useThe traditional charging power line is connected to the charger on the terminal device that needs to be charged, using the latest wireless charging technology, by using the magnetic field generated between the coils, the magic transmission of electrical energy, inductive coupling technology will become a bridge connecting the charging base station and the device. How to use: Connect the USB cable and plug it into the socket.
Provides the possibility for the large-scale application of wireless charging. [1] The "Qi" icon is a pinyin of the Chinese word for Qi (Qi), meaning "Qi" - an invisible energy in Asian philosophy. [2] The release of the International Wireless Charging Alliance (WThe ireless Power Consortium (WPC) released the international standard for Qi wireless charging at the Diaoyutai State Hotel in Beijing on the morning of August 31, 2010, introducing the standard into China.
The current wireless charging Alliance (WPC) formulated the Qi standard of the charging frequency is generally about 100kHz, it is recommended to look at this standard, it is the current more mainstream standard in wireless charging.
w. Present stateThe production of mobile phones have supported 50W wireless charging, 50W is also the upper limit of the interim standard for wireless charging, but even so the frequency of wireless chargers is still not as good as the traditional charger, Samsung launched a 15W wireless charger at this time, which is really confusing.
To effectively reduce the adverse effects of electromagnetic radiation on health. For mobile phones: under normal circumstances, it will not harm the mobile phone, and the working frequency of wireless charging is now below 1M, so it will not affect the signal of the mobile phone. Wireless charging also has no effect on the battery life of the phone, and wired charging is basically the same, but the speed is lower,But the wireless charger power conversion rate is still very high, more energy saving.
Wireless charger operating frequency, according to QI standard is 110-205kHz; The frequency of mobile phone communication is in the range of 0.8GHz to 2GHz (the communication system will vary, 1GHz=10^9Hz). The different frequencies make the mechanism of their impact on the human body is different.
Wireless charging, and even remote sensing charging. Its principle is electromagnetic induction, which is usually used in small power situations and does not require electrode contact points. There are induction coils in the column and electricity, electric teethThere is also an induction coil inside the brush insert part, and there is plastic insulation outside, there is no electrical contact, and the induction obtains electric energy to charge the battery and drive the small motor.
Because the working frequency of wireless charging is now below 1M, it will not affect the signal of the mobile phone. On the contrary, wireless chargers not only reduce the use of data cables, but also make charging methods more free and safer. It is basically the same as wired charging, but the rate is lower, but the wireless charger still has a high energy conversion rate, which saves energy consumption more.
First of all, not all wireless chargers on the market can be competent for watch charging. Many products do not clearly label the radiation value, which is somewhat worrisome. Since the radiation standard of wireless charging technology has not yet been perfected, we need to be concerned that the current regulatory requirements, such as the Electromagnetic Radiation Protection Regulations, stipulate that the electromagnetic radiation of the user in continuous contact with the wireless charger within 24 hours shall not exceed the specific absorption rate (SAR) limit of 0.02W/kg.
Taking 1000mAh capacity lithium battery as an example, the radiation of wireless charger is calculated. 50% charging capacity is about 7~8Wh. If it is required to be full for about two hours, the maximum charging power should reach at least 1W (the maximum power of the GSM900 mobile phone is about 2W); Since the wireless charging method of the phone is to place the phone above the charger rather than inside, the radiation leakage rate can be not small.
The test found that using a high-sensitivity radiation meter, the radiation value of the wireless charger is between 150 and 180, although it is smaller than the 250 to 627 values in front of a computer screen or the thousands of values when making a call on a mobile phone, but the cumulative effect may not be negligible. Meanwhile, wireless chargers, mobile phonesWhen electronic devices such as computers and computers are used together, the radiation value will increase significantly.