1, consumer electronics concept leading stock Xinwei Communication: the domestic leading mobile terminal antenna system provider, Xinwei communication around the "RF" technology for the upstream and downstream all-round layout. Although there is still a gap in many of the most advanced technologies, its technical level has represented the most advanced technology in China, and it is also catching up with more advanced technology in the world.
2. The stocks in the consumer electronics sector include Hesheng Shares, Pengding Holdings, Shenzhen Technology, Digital China, etc. A stock is a limited company consisting of a joint-stock companyA certificate issued to certify a stockholder's shareholding, indicating that the holder of the stock has title to a portion of the capital of the corporation. Since stocks contain economic interests and can be listed for circulation and transfer, stocks are also a security.
3, the consumer electronics industry is widely involved, including Shenyu shares (stock code: 300563), which focuses on the development, production and sales of high-frequency RF coaxial cables.
4, the four leading consumer electronics concept stocks in the market focus: / Everbright Tongchuang (301387) /, as a leader in the field of consumer electronics protection,Its products, such as protection and buffer devices, escort the safety of electronic products. With technological innovation, Everbright Tongchuang's products are constantly upgraded to meet consumers' high requirements for product performance and experience.
5. Hesheng Shares: Leading shares of consumer electronics. To develop the application of aluminum, lead the consumption of aluminum, and let aluminum enrich our lives is the company's tireless pursuit. Pengding Holdings: consumer electronics leading stock. In 2019, the company's communications electronics business accounted for 75% of the sales revenue, consumer electronics and computer board products 25%, and the company has no base station PCB business.
6, electronThere are 66 gallium nitride fast charger new products released, showing a blowout development trend.
It is also due to these performance advantages that gallium nitride has a wide range of applications in the consumer fast charging source market. Charging head network statistics show that at present, dozens of mainstream power manufacturers have opened up GAN fast charge product lines, and launched hundreds of new GAN fast charge products. Huawei, Xiaomi, OPPO, Meizu, Samsung, ZTE, Nubia, Meizu, realme, Dell, Lenovo and other well-known mobile phone/laptop brands have also entered the game.
Xiamen SAN An Integrated Circuit Co., Ltd. was established in 2In 2014, it is a subsidiary of LED chip manufacturing company SAN 'an Optoelectronics, based on gallium nitride and gallium arsenide technology business, is a foundry specializing in compound semiconductor manufacturing, serving the radio frequency, millimeter wave, power electronics and optical markets, with substrate materials, epitaxy growth and chip manufacturing industry integration capabilities.
Due to the gallium nitride application ecology is still in the development stage, it is relatively difficult for customers to use gallium nitride devices for product design. In order to solve this problem, Nano will provide devices, but also have a team responsible for following up the customer's follow-up product specification customization, design, mass production and other linksTo ensure customer experience. This also reflects from the side that the industry ecology related to gallium nitride has not yet been perfected. It is believed that all silicon-based chips that people are more familiar with are the first generation of semiconductors, while gallium arsenide and indium phosphide are the second generation, and wide band gap semiconductors such as silicon carbide and gallium nitride (high breakdown voltage) are the third generation of semiconductors. The biggest benefit of the third generation is resistance to high temperature, high power, high pressure, high frequency and high radiation. This allows it to play a great role in high-power fast charge, high-power motor and main inverter.
Zhisheng Microelectronics continues to enrich the product line with deep technical strength,Recently, the company released a new generation of 5G micro-base station gallium nitride final-stage power amplifier chip NV9398 series, which has obvious performance improvement advantages compared with the current mainstream similar products in the industry. From the point of view of product design, NV9398 adopts GaN pHemt process technology, adopts a more concise and flexible integrated structure of system layout, and uses a large peak ratio broadband Doherty design scheme.
Depending on the daily maintenance and frequency of use, it can be used in general2-5 years. According to normal use, the quality of the general battery is about three years. Good batteries last five years. Of course, it is not that the battery cannot be used after three or five years, but the capacity will be greatly reduced. Change according to the situation. How long does your phone battery last? The average mobile phone battery will age after one or two years of use.
Now the mobile phone is an all-in-one machine, the battery is a built-in battery, the middle can not be replaced at will, the battery performance is degraded or damaged, it is recommended to back up the important data files in the mobile phone, carry the mobile phone to the customer service center to test and replace the mobile phone battery. Service life in normal use condition and noIn the case of severe impact, the service life set by the mobile phone manufacturer should be 5 years, which may have an impact on the service life of the mobile phone in wet and rainy areas.
The replacement frequency of mobile phone batteries is recommended in two to three years. However, this is only a rough reference, and the specific replacement time is recommended to be adjusted according to the actual situation. First of all, the life of a mobile phone battery can be affected by a number of factors. Among them, the most important is the quality of the battery and the use of the phone. High quality battery, its service life is relatively longer.
Cell phone battery life is generally 3 to 5 years. Cell phones on the market nowThe battery is very durable, under normal circumstances, the use of three years, five years is not a problem, there is no need to replace the battery. However, some people often shorten the battery life because of bad charging habits and bad use habits, and the battery becomes very durable after only two or three years.
The common feature of rechargeable batteries is that as the number of charges and discharges continues to increase, the capacity of the battery will continue to decline. The same is true of lithium-ion batteries in mobile phones, with the number of charges and discharges increasing, the battery capacity will also decrease.
Huawei mobile phones can generally be used for about three years, and Huawei mobile phones
Mobile phone: Samsung GalaxyNote5 system: Android1 Samsung serial number can be identified by the following methods: Use the search engine to find the official website of Samsung mobile phone, click to enter. After entering, select the "After-sales Service" service option. The Phone Activation Time dialog box is displayed. Finally, enter the IMEI of the mobile phone and use the SN code to check whether the mobile phone is a national bank.
Sales Code is followed by the version code we want to query, for example, CHN represents the mainland goods. Other common codes are: RGS= Canada, ELS= Finland, OFR= France, DBT= Germany, TGY= Hong Kong, PAN= Hungary, GOM= Italy, DCM= Japan, SKT= Korea, TWM= Taiwan, BTC= United Kingdom, AWS= United States.