1. The use method is as follows: After plugging in the power supply, touch the arc light pole with your finger at any position to light the light. Put the device that needs to be charged under the lamp, switch the mobile phone to the wireless charging mode, and put it into the wireless charging induction area of the lamp. Use the phone charging cable to connect the lamp USB port to the phone, and the phone can also be charged.
2, wireless charging, the desktop has never been so clean. The touch design is adopted, and the three touch buttons below are the light switch key, the on key and the timed shutdown key in turn. At the same time, this is also a wireless charging area, ifYour mobile phone supports wireless charging, which can be directly put up to charge the mobile phone, say goodbye to the bondage of the data line, and the desktop is suddenly clean. Oh, and you can charge it wirelessly without turning on the lamp.
3, very simple, regular discharge. For example, every month (if there has been no power failure), do not plug in the AC plug, turn on the light, until the light is not bright, indicating that the electricity has been discharged. Plug in the AC power.
4, this kind of music desk lamp generally can not wireless charging for mobile phones, wireless charging now only that kind of small disc, like you this kind of music desk lamp, it must still need a line connection, no
2, question nine: y5v and x5r which kind of capacitor is good This is according to the American Electrical Association (EIA) standards, the MLCC of different dielectric materials is divided into three categories according to temperature stability: ultra-stable (industrial) dielectric materials are COG or NPO; The medium material of stable level (Class II) is X7R; Dielectric material Y5V of grade (III) can be used. The X7R capacitor is known as a temperature-stable ceramic capacitor.
3, the change is less than 0.2% in 50 years. The price of NPO capacitors is high compared to other capacitors. However, in the application of higher accuracy requirementsIn the domain, the performance and benefits of NPO capacitors are irreplaceable. In addition, NPO capacitors have the advantages of low distortion, low noise and good frequency response. Therefore, despite their high price, NPO capacitors are still widely used in applications such as high-end audio equipment, precision instruments, microwave and mobile communications.
4, NPO: capacitor, English negative positive 0 ppm/°C abbreviation, temperature insensitive capacitor, is a common temperature compensation ceramic capacitor. Its filling medium is composed of rubidium, samarium and some other rare oxides. NPO capacitanceIt is suitable for slot capacitors in oscillators, resonators, and coupling capacitors in high-frequency circuits. X7R: X7R capacitors are known as temperature-stable ceramic capacitors.
5. The capacitors of NPO and COG capacitors are described as follows: NPO (Non Polarized) is a non-polar capacitor that has temperature compensation characteristics, and its volume will change to 0±30ppm/℃ when the temperature is from -55℃ to 125℃, and the capacity will change with signal frequency below ±0.3ΔC. The drift or lag of the NPO capacitor is less than ±0.05%. Suitable for oscillators and resonatorsThe channel capacitor of the device, and the filter capacitor in its high-frequency circuit.
6, about the mobile phone charging heat problem: the mobile phone will have some heat when charging, which is normal, because there will be a certain loss of electrical energy in the charging process, this part of the electrical energy into heat will make the mobile phone and the charger to keep warm, such as the use of mobile phone temperature will be higher when charging.
1, Shanghai Central Asia radio components factory is 1981-06-30 in Shanghai Xuhui DistrictThe registered collective ownership is located at Room 201, Building 6, No. 1270 Longwu Road, Xuhui District, Shanghai. Shanghai Zhongya Radio Components factory unified social credit code/registration number is 913101041326126151, enterprise legal person Wu Guoping, the enterprise is currently in the state of opening. The business scope of Shanghai Zhongya Radio Components Factory is: capacitor sales. 2. Jiangning Road, Shanghai. According to the official website of Shanghai Yidian Electronics Co., LTD., Shanghai Yidian Electronics Co., LTD. Haiyan wireless power plant was established in 1991, located in Shanghai Jiangning Road, is aA company engaged in the manufacture of computers, communications and other electronic equipment.
3, Shanghai Radio mold Factory is 1981-06-24 in Shanghai Hongkou District registered ownership, registered address is located in Zhoujiazui Road No. 1010. Shanghai Radio mold factory unified social credit code/registration number is 310109000001895, enterprise legal person Gu Zhengming, the enterprise is currently in the state of opening. The business scope of Shanghai Radio Mold factory is: mold, mold standard parts, mold molding products.
This is OK, it is the earliest wireless charging CBB capacitor in the industry, which belongs to the most mature technology at present. The biggest advantage of CBB is that it is cheap, and it only costs a few cents.
Lei Jun held a public speech on the 10th anniversary of millet, and released the millet 10 supreme commemorative version of the mobile phone, charging, the mobile phone built-in graphene-based butterfly fast charging battery, support 120W wired second charge 50W wireless second charge 10W wireless reverse charging. In addition, hundreds of watts of car charging,A series of accessories such as intelligent tracking wireless charging, vertical wireless charging bank and vertical air-cooled wireless charging are also launched.
also requires a fixed device, after the power is turned on to radiate. The mobile phone can receive the signal to charge the mobile phone wirelessly. Personal recommendations do not recommend the frequent use of such a charging method, because it is related to distance and current, voltage. It is not good for the use of the phone battery, and it is often charged like this. It's also bad for a fully charged phone.
The front of the circuit board also has a shielding cover, and the pin CBB resonant capacitor is attached to the shielding cover. On the back of the circuit board, there are batteries and cables on both sidesThe inner part of the ring thermistor is the solder joint of the wireless charging coil. Compare the size of a $1 coin. Battery spot welding and PCB connection. Circuit board interface list. First, remove a large shielding cover on the front, inside are two IC, positive and negative terminals in the middle of the black sealant is a battery protection tube, reinforced with glue.
It is recommended that you replace the original charger, and check whether there is software running in the background of the phone, if there is an attempt to close. When using the original charger, the phone is charging and heating abnormally, which may be a fault of the phone. It is recommended that you back up important data on the phone first and restore the phone to factory Settings. If the phone is still restored to the factoryIf the fever is abnormal, you can take the invoice repair card to the nearby service center, and professional engineers will help you detect and repair the problem.
can be replaced, in principle, choose the same parameters of the device to replace, there is no original, substitute is no problem.