Huizhou (HK) Yingyuan Technology
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After using a computer, many people regularly maintain it, such as removing the shell and dust, and wiping off any dust or dirt on the computer. In order to be cleaner, some people even use alcohol to wipe the screen. Kinri believes that cleaning a computer screen with alcohol is equivalent to repeatedly probing at the edge of danger, which can cause significant damage to the screen.Alcohol is equivalent to a disinfectant and cleaning agent, with strong solubility. It can dissolve many substances and effectively remove some stubborn dirt. Therefore, in daily life, we can use alcohol to wipe the phone screen, but not the computer screen.Because the coating on mobile phone screens and computer screens is not the same. According to the power adapter manufacturer, the coating on the phone screen is called hydrophobic oil layer, and the main material used is fluorinated coating, which can effectively prevent fingerprints and oil, and has strong stability. Not easily dissolved by alcohol.Th...
2024
We often hear people say that to buy a power adapter, you need to buy a certified power supply, so the certification here is about safety certification. Safety regulations are the abbreviation for product safety regulations. The so-called safety regulations, according to the narrow definition of the European Union in 2006, refer to products that do not pose a safety hazard to users, livestock, or property during installation and use.Our most common certification is 3C certification. In fact, in addition to CCC certification, there are many types of certifications such as CE, GS, UL, etc. To sell products to a certain region, they must pass the safety regulations certification of that region (or recognized). Due to trade protection and other reasons, the certification standards in many places are also different.Product safety certification has its own specialized standards. Most products need to consider a series of safety requirements from the beginning of product design, with the mos...
With the development of the electronic industry and the increasing intelligence of life, the demand for switch mode power supplies is increasing. As an essential power source in modern electronic technology, switch mode power supply has many advantages such as high efficiency, small size, adjustable voltage and output negative pressure. Do you know the reason for using optocouplers in switch mode power supplies?The optocoupler inside the switching power supplyReasons for using optocouplers in switch mode power supplies:The main advantages of optocouplers are: unidirectional signal transmission, complete electrical isolation between the input and output terminals, no impact of the output signal on the input terminal, strong anti-interference ability, stable operation, contactless, long service life, and high transmission efficiency. Optocouplers are a new type of device developed in the 1970s and have been widely used in electrical insulation, level conversion, inter stage coupling, dr...
In the application of power supply, many require certain waterproof functions, and there is a high requirement for the level of waterproofing. Not only does it require waterproofing, but it also has high requirements for the adaptability to environmental temperature and the operation of equipment in adverse weather conditions. This includes LED street lights. LED street lights play an important role in lighting, and most LED street lights now use waterproof power sources. So what are the advantages of using waterproof power supplies on LED street lights?waterproof power supplyAdvantages of waterproof power supply application in LED street lights:1. Stable and reliable performanceThe power supply of LED street lights needs to be installed at high altitude, which can be troublesome to repair or replace. This requires ensuring stable and reliable performance of the power supply, reducing the number of failures, and waterproof power supply can meet this requirement.2. High efficiencyLED s...
A switching power supply transformer is a power transformer that incorporates switching tubes. In addition to the voltage conversion function of a regular transformer, it also has insulation isolation and power transmission functions. It is generally used in high-frequency circuits such as switching power supplies. However, it is inevitable that some failures may occur in switch mode power transformers. So, how can switch mode power transformer failures be resolved?switching power supply transformerSolution to Transformer Failure in Switching Power Supply:(1) Discharge ignition: The discharge ignition observed on the surface is generally caused by dirt and insulation damage on the pins of the switch power transformer. Repair method: Remove the switch power transformer, thoroughly clean the pins, outer surface, and printed circuit board of the switch power transformer with anhydrous alcohol and medical cotton balls. If insulation damage is found, the damaged area can be wrapped with po...