DC voltage is applied to the dielectric. After a certain time of polarization, the corresponding leakage current flowing through the dielectric is called insulation resistance. Insulation resistance is the most basic insulation index for electrical equipment and lines. Low-voltage electrical installations of the handover test, motor, distribution equipment, and distribution lines insulation resistance shall not be less than 0.5MΩ (operating equipment and wiring insulation resistance of not less than 1 megohm / kv). Low-voltage appliances and their connecting cables and secondary circuit insulation resistance are generally not less than 1MΩ; in a relatively humid environment, it should not be less than 0.5MΩ; small circuit small bus insulation resistance shall not be less than 10MΩ. Class I handheld power tools insulation resistance shall not be less than 2MΩ.
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![Differences between the four types of resistors]()
Differences between the four types of resistorsSource： Release time：2022-08-10 Click：199 -
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Solutions to the most common errors in machine learningSource： Release time：2022-08-08 Click：153Data science and machine learning are becoming increasingly popular, and the number of people in the field is growing daily. This means that many data scientists are building their first machine learning models without extensive experience, and this is where mistakes can happen.
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![Electronic components basics: structure and characteristics of inductors]()
Electronic components basics: structure and characteristics of inductorsSource： Release time：2022-08-08 Click：168?Inductors, also known as chokes and dynamic reactors, are components that can store electrical energy by converting it into magnetic energy. The structure of an inductor is similar to that of a transformer but with only one winding. Let's start by understanding the structure and characteristics of inductors.
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![Digital temperature sensing versus analog temperature sensing]()
Digital temperature sensing versus analog temperature sensingSource： Release time：2022-08-03 Click：194?Temperature sensing is used in a wide variety of sensing applications. Previously, temperature sensing was mainly performed using analog components such as RTD, NTC, or thermocouples to measure temperature. Still, with the rise of emerging application scenarios such as the Internet of Things, digital temperature sensors have become popular in industrial control, consumer devices, and medical devices.
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![The impact of the electric vehicle upgrade on electronic components]()
The impact of the electric vehicle upgrade on electronic componentsSource： Release time：2022-08-02 Click：157The sales of new energy vehicles have risen in the past two years, and their technology development is also changing rapidly. Many cool technologies previously seen in science fiction movies have started to be adopted by car manufacturers, such as head-up displays, super large screens, autonomous driving, etc. Recently, the 800V high voltage platform has become a hot topic. Recently, the 800V high-voltage platform has become a hot topic of discussion, and many car companies have launched or will soon launch the 800V platform for new energy vehicles.
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![Why SLAM Matters?]()
Why SLAM Matters?Source： Release time：2022-07-29 Click：211?Simultaneous localization and map building (SLAM) is a technology used by self-driving cars that allows you to not only build a map but also to locate your vehicle on that map. SLAM algorithms allow cars to build maps of unknown environments. Engineers use the map information to perform tasks such as path planning and obstacle avoidance.
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![Principle and the basic structure of fiber optic communication system]()
Principle and the basic structure of fiber optic communication systemSource： Release time：2022-07-27 Click：197Fiber optic communication technology has emerged from optical communication as one of the main pillars of modern communication and plays an important role in modern telecommunication networks. At the same time, it is the main means of transmission in modern communication networks.
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![Semiconductor Innovation in the Electric Vehicle Ecosystem]()
Semiconductor Innovation in the Electric Vehicle EcosystemSource： Release time：2022-07-25 Click：178?Automotive electrification is not new. The earliest electric vehicles (EVs) were introduced in the late 1800s. What is new, however, is the growing pressure to curb fuel emissions and the surge in consumer adoption of EVs driven by semiconductor innovation and affordability.
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![Computer CPU cooling module composition principle]()
Computer CPU cooling module composition principleSource： Release time：2022-07-23 Click：164Heat dissipation is a very critical technical issue for notebook computers. The heat emission is related to the stability of the whole system and the product's life. According to statistics, 80% of computer hardware failures are caused by "temperature." Especially for notebook computers and some small mobile terminal products, effective heat dissipation has a very important significance.
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![Considerations for miniaturized power supply design]()
Considerations for miniaturized power supply designSource： Release time：2022-07-20 Click：167Miniaturization has always been a hot topic in the electronics industry and is especially important for power supplies. The quality of a power supply is often measured in terms of power per unit volume. This article discusses some considerations that can help achieve a miniaturized power supply design.
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![How to choose a suitable industrial connector?]()
How to choose a suitable industrial connector?Source： Release time：2022-07-15 Click：168In recent years, with the increasing degree of industrial automation and connectors have been more than to ensure the interconnection of devices, its function has been extended to the connection between the equipment and the reliable guarantee of current and signal transmission. Therefore, industrial connector components that can be applied to harsh environments and connect various devices and systems have become necessary for industrial production.
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![PCB board commonly used electronic components]()
PCB board commonly used electronic componentsSource： Release time：2022-07-18 Click：437Electronic components come in different types of packaging. Different components have the same shape, but their internal structures and uses differ. Complex electronic circuits are also composed of these electronic components.
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![Six test methods for OLED screen performance]()
Six test methods for OLED screen performanceSource： Release time：2022-07-14 Click：194OLED is a self-luminous display device; in the actual work, only a part of the pixel light, in the test display brightness, in addition to the full-screen brightness, put forward the concept of 4% window brightness to characterize the average time brightness of the OLED screen.
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![What is the difference between a server processor and a home processor]()
What is the difference between a server processor and a home processorSource： Release time：2020-08-15 Click：1535This article will tell you more information about the difference between server processors and home processors from many aspects, so you just need to read it carefully.
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![PIN diode parameters and structure principle]()
PIN diode parameters and structure principleSource： Release time：2020-08-11 Click：1241From this article you will get more information about PIN diode, such as it's parameters and structure principle.
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![Sharing of effective integrated circuit disassembly methods]()
Sharing of effective integrated circuit disassembly methodsSource： Release time：2020-08-07 Click：1102From this article you will get all kinds of methods about how to disassemble the integrated circuit, so you just need to read it carefully.
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![Features of ultra-low voltage processors]()
Features of ultra-low voltage processorsSource： Release time：2020-08-05 Click：1411Low-voltage processors often mean low power consumption, such as the fourth-generation U-series low-voltage processors, from this article you will get more information about it.
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![The introduction about the top three processor chips on the market]()
The introduction about the top three processor chips on the marketSource： Release time：2020-07-25 Click：1918This article will tell you more information about the top three processor chips on the market, they are: the A12 used by Apple mobile phones, the Kirin 980 used by Huawei mobile phones, and the Snapdragon 855 used by many Android phones.
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![I/O doubled, Lattice aims at the industrial communication FPGA market]()
I/O doubled, Lattice aims at the industrial communication FPGA marketSource： Release time：2020-07-22 Click：1284From this article, you will get more information about communication FPGA market, so you just need to read it carefully.
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![How to judge the quality of air conditioner temperature sensor]()
How to judge the quality of air conditioner temperature sensorSource： Release time：2020-07-14 Click：1489When judging the performance of the air conditioner temperature sensor, the fixed frequency air conditioner should be set to the forced cooling operation state, and the inverter air conditioner should be set to the trial operation state. You can read this article carefully for more information.
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