This article gives you a talk about wireless charging continuous coil, and wireless charging coil will burn the corresponding knowledge points, I hope to help you, do not forget to collect this site. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, Xiaomi 20W vertical wireless charger costs 99 yuan, double coil design can charge multiple mobile phones at the same time...
1, millet 20W vertical wireless charger Jingdong open for sale, only 99 yuan! Xiaomi's newly launched 20W vertical wireless charger, which hit the shelves on JD.com today, has caught the attention of consumers with its unique double coil design. This charger supports horizontal and vertical placement, whether it is a desk or a bedside table, it can be easily adapted to bring users a convenient wireless charging experience.
2, in terms of security, milletThe vertical wireless charger has intelligent FOD metal foreign body detection, which can effectively prevent safety hazards caused by accidents, and also provide multiple guarantees such as temperature protection and short circuit protection, making use more secure. The price is only 99 yuan, very high cost performance, whether it is Xiaomi users or other mobile phone users who support wireless fast charging, it is worth considering.
3, the convenience of the vertical design is that the mobile phone can be charged without being plugged in, and can act as a stand, but it is recommended to avoid playing games to prevent poor wireless charging contact. The double coil design allows for horizontal placement and entertainment while charging. Especially for watching movies, TV drama scenes, bracket and chargingCompatibility is ideal.
4, millet 20W vertical wireless charger has landed on Jingdong, pricing 99 yuan at 10 this morning, millet launched the new 20W vertical wireless charger officially sold on Jingdong. One of the highlights of this product is its unique dual coil design, whether it is placed horizontally or vertically, it can achieve wireless charging, improving the convenience of use.
5, when looking for high-quality but less well-known stores, I found a stunning wireless charger in Millet products - millet vertical universal fast charge 20W product, priced at only 99 yuan. This chargeThe task is to connect the receiver's metal shock to the smartphone battery, which is the most difficult part of the process. However, as long as you are careful to ensure that each metal shock is connected together, it can be done.
One of the self-wound coil is connected in the charging circuit, 555 output pin (third pin) is connected to an output tube (oneself at will, but to the high-frequency power tube) the output tube is linked to the self-wound coil, and the connected two coils are close (about 1 cm or so there is a very sufficient charging current). The efficiency of this circuit is very low, because only half the peak high frequency so the loss comparisonLarge, but the principle is fairly simple and easy to make.
Question 1: How to make wireless charger? There are many ways to use wireless chargers, mainly to see how the reception is installed. But no matter what the product is close, the operation method is placed on the launch plate. Take the mobile phone for example, the current mobile phone is generally added a mobile phone jacket, in this jacket there is a wireless receiver module. The phone can be charged wirelessly with this jacket.
Wireless charging coil test good or bad method is as follows: test the resistance value of the coil, resistance value within a certain range is a good product. Test the Q value of the coil, the higher the Q value, the better the performance. Test the coil temperature rise, the lower the temperature rise, the better the performance. Test the efficiency of the coil, the higher the efficiency, the better the performance.
If it is a small power transformer, it can be tested directly with ohms. But you need to know the normal resistance of the transformer. The resistance value of the transformer measured by the multimeter can not determine the quality of the transformer, the reason is simple, the resistance value of the transformer on the wire winding value is very small, the resolution of the multimeter is limitedCan not distinguish between turns or even between layers short circuit.
Normal, under normal circumstances, the inductance decreases with the increase of frequency.
In these two cases, it can be determined that the coil is bad and cannot be used. If the detected resistance is not much different from the original determined or nominal resistance value, the coil can be judged to be good. In this case, you can judge the quality of the coil, that is, the size of the Q value, according to the following circumstances.
Set the multimeter to the ohmic setting. Test the resistance value between the two terminals of the motor coil. If the motor coil is not damaged, the resistance value should be within a certain range, noIt indicates that the motor coil may have been damaged. If the resistance value of the motor coil is not in the range, you can use a multimeter to test the insulation performance of the motor coil. Set the multimeter to insulation test gear and connect the test leads to each of the two terminals of the motor coil.
Huawei new reveal: Beyond Apple's smart charging board, only 799 yuan starting at Huawei's new product launch in July, although Huawei P50 series and MatePad Pro 16 and other products stole the show, but a mysterious new product has not been ignored. This productIt is Huawei multi-device intelligent wireless charging board, it has been officially listed, the price is only 799 yuan.
Whether it is Huawei, Xiaomi or Apple mobile phones, this charging board can be compatible, helping users reduce their dependence on mobile phones and improve the convenience of scientific and technological life. Overall, this 3-in-1 wireless charging pad with a sense of technology is recommended, adding utility and beauty to your desktop.Huawei Super Fast Charge Wireless charger (MAX 27W) : Align the center of the earphone case coil (the lower part of the earphone is near the back of the LED lamp, not the geometric center) with the center of the wireless charger coilThe indicator light is charged.
Wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base.
Wireless charger usage: the mobile phone standard charger and data cable connected to the wireless charger, and then put the mobile phone in the wireless charger base left/right center position, you canWireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguishment, plug and play, convenient and fast.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic field will generate current, charging the mobile phone. As shown below.
is also similar to a transformer, input from the primary coil and then in the secondaryAn induced current is generated on the coil. It mainly relies on the energy transmission between electricity and electricity, converts electricity into magnetism, and then induces electricity. Wireless charging is simply to charge electrical equipment through electromagnetic fields or electromagnetic waves without being connected by physical wires. At present, there are three main methods: electromagnetic induction, magnetic resonance and radio wave.
If your Huawei mobile phone supports wireless charging, place the mobile phone screen facing up in the center of the charger or the position recommended by the manufacturer after the wireless charger is powered on.
Mobile phone wireless charging refers to the charger and electricityThe device can charge the phone without a wire connection between the two.
1, the working principle of wireless mobile power supply: It is the use of electromagnetic induction, that is, when the current passes through the coil to generate a magnetic field and form a voltage, and after the voltage, it will generate a current for charging. You can charge your phone even without a cable. Wireless charging is a device or device with a built-in battery that obtains power through wireless induction. The technology stems from wireless power delivery.
2, the principle of wireless charging treasure is to use wireless electromagnetic energy transmission technology to charge mobile devices. This technology enables the mobile device to be charged by establishing a radio magnetic field between the wireless charger and the mobile device, which transmits electrical energy from the wireless charger to the mobile device. Wireless charging bank usually consists of two parts: wireless charger and wireless charging module.
3, the principle of wireless charging mobile power: magnetic energy into electrical energy, is based on the principle of induction cooker because wireless charging requires a sending and receiving end, so wireless charging mobile power in the conventional mobile power baseA sending device is installed on the base, and the charged mobile phone supports wireless charging and has a receiving coil for wireless charging.
4, wireless charging mobile power, as the name suggests, do not need a data cable to charge the phone! Here's how it works: electricity generates magnetism and magnetism generates electricity.
5, the way of wireless charging is electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc., wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phoneClose to the magnetic field, an electric current is generated to charge the phone.
6. The energy transmitting coil is installed in the charging base, and the receiving coil is installed in the electronic device. Resonance This kind of wireless transmission method is similar to the principle of wireless communication, the electromagnetic wave of the resonant loop at the sending end is permeated in the entire space, and the resonant loop at the receiving end is at the specific frequency, so as to achieve the transmission of energy. This transmission mode can obtain higher transmission efficiency when the output power of the receiving end is relatively small.
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