1, the basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. After the power management module output direct current through 2M active crystal inverterConvert to high frequency AC to supply primary windings. 2, wireless charging is also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation.
3, wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the power supplyThe current passing through the coil (the power supply coil of the wireless charger) will generate a magnetic field, and other unenergized coils (the power supply coil of the mobile phone) will generate a current near the magnetic field to charge the mobile phone. As shown below.
4, wireless charging system mainly uses the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of 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 equipment.
5, the original wireless charging technologyThe reason lies in "magnetic electricity", which is simply to induce and form a current through the charging device and the two "magnetic equipment" installed on the mobile phone device. At present, products supporting wireless charging have appeared in mobile phones, electric vehicles, smart furniture and other fields. Among them, in the mobile phone industry, the "Qi standard" is the most common, and Qi labels are often used in the packaging of many mobile phones and wireless chargers.
6, wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, does not need to be like the traditional wired charger need to transmit cables to the device, but will needThe charging device can be charged by touching the wireless charging base.
1, this model CP61 device has received FCC certification, and the technical specifications reveal that it supports up to 30w wireless charging output power. However, the FCC certification results show that its actual output power did not reach 30w, which is the same as the Huawei Mate 30 revealed by the charging head network will support 25W wireless fastThe information matches up.
2, Huawei's new wireless charger passed FCC certification: maximum support for 30w wireless charging Recently, Huawei's new wireless charger CP61 obtained FCC certification, technical specifications revealed that it has a maximum 30w wireless charging output power. However, the FCC's evaluation results show that the actual output power may not reach the labeled 30w, which is consistent with the previous charging head network that Huawei Mate 30 will support 25W wireless fast charging.
3, Samsung note10 wireless charging 15w. Wireless chargers as well as through FCC's certification, the model is EP-N5200, and the data given by the FCC shows that its power is still 15W. However, during MWC Shanghai, Samsung's official promotional poster showed that its latest wireless charging supports 20W power. Previous reports have pointed out that the Samsung Galaxy Note 10 will be equipped with a 25W wired charger, but the wireless charger power remains at 15W, which is confirmed by the FCC certified EP-N5200 model.
5, conclusion: Samsung Note 10 wireless charging capability has been obtainedAccording to the official poster, its wireless charging power will reach an astonishing 20W, which is almost equivalent to the wired charging power. Previous reports have pointed out that although the FCC certified wireless charger model EP-N5200 has a power of 15W, Samsung's new product clearly breaks this limit. 6, While wireless charging is generally slower than wired charging, technological advances have significantly narrowed the gap. The charging speed is usually determined by the power output of the wireless charger and is measured in watts (W). The higher the wattage, the faster the device charges, provided your device supports that output level. For example, markThe quasi-Qi wireless charger may offer 5W charging, which is more than enough for most smartphones.
1, FCCID certification is specifically for wireless products, certificate issued by the United States TCB agency, when applying for certification, first of all, enterprises need to apply for Code code, certification companies to complete the product testing issued test report, by the TCB agency audit in the issuance of certificates, thisThe period is relatively long, about 4 weeks.
2, FCC Certification process the first Certification (that is, apply for FCC ID) ① by the customer to provide a complete test sample and complete accessories, submitted to our laboratory; If it is the first time to apply for an FCC ID, apply for an FCC Registration Number (FRN) at the same time.
3, the average time for the FCC to accept ID applications is 60 days. At the end of the process, the FCC will send the Original Grant with the FCC IDid=' Which brand of wireless charger is durable '> Which brand of wireless charger is durable
1, iWALK Magic Scorpion flat wireless charger iWALK IWALK Magic Scorpion flat wireless charger, products through KCC, CE, FCC, RoHS agency quality safety testing certification. iWALK Magic Scorpion charger is really ideal for wireless charging, taking Apple mobile phones as an example, support 5W fixed frequency fast charge. In the actual test, the fast charge head of 5V/2A is used, and the average is about 6W.
2, Zikko Apple wireless charger compared to the market oftenSee the wireless charger, which has the advantages of high 10W fast charging, multi-coil need not be aligned to a fixed position, and all-round charging. Equipped with high 10W dual coil wireless transmission power, compared to the common single coil, it does not need to be aligned to a fixed position when charging. It has three modes of horizontal and vertical placement, no matter it is horizontal, horizontal and vertical placement, it can truly achieve all-round charging.
3. Gotes wireless charger (Top ten wireless charger brands, Gotes).
4, as a professional charger production brand, its wireless charger has efficient and stable charging performance, canFast charging for the device, but also has good compatibility, suitable for a variety of devices that support wireless charging technology.
2, CE ROHS price from 20 thousand to 20 thousand FCC price from 5 to 8 thousand.
3, FCC certification for the United States electronic products clearance certificate. The scope of CE certification is relatively wide, electronic products and non-electronic products are within the scope of CE certification and FCC certification can only be handled if the product is live.
4, it should not be expensive, if you do it together, 1W head point, specific consultation professional institutions or private letters.
5, if the battery is not done, do the whole productionProduct, the cost of 30,000 to 50,000. Ambo Testing is one of the three major partners of KTC in South Korea, is the winner of KTC Golden Key Award, and has a fast cycle to give customers. For those of you who have a requirement for cycles, this is good news.
6, CE is a certification project to enter the European Union, marking to meet the minimum safety requirements of the European Union, and permitted to market. 2, RoHS is the EU electronics industry's hazardous substances (6 kinds) control directive, is also mandatory, find a laboratory test report can be.
1, FCC certification FCC full name is Federal Communications Commission Wireless fcc, Chinese for the United States Federal Communications Commission. Established in 1934 under the Communications Act Wireless fcc, is the United States government wireless fcc an independent agency wireless fcc, directly to the countryWill be responsible. The FCC coordinates national and international communications by controlling radio, television, telecommunications, satellites and cables.
2, FCC full name is Federal Communications Commission Wireless fcc, Chinese for the United States Federal Communications Commission. It is an independent agency of the United States government, directly accountable to Congress. The FCC coordinates national and international communications by controlling radio, television, telecommunications, satellites and cables. It covers more than 50 states, Colombia and the United StatesTo ensure the safety of radio and wire communication products related to life and property.
3, FCC certification, the full name of the United States Federal Communications Commission certification, is the United States government regulation of radio, television, telecommunications and other fields of important institutions. It is directly accountable to Congress to ensure that all wireless and wireline communications products entering the U.S. market meet stringent communications regulations and standards while safeguarding life and property.