What is the use of the power adapter?

　　I believe everyone has seen the power adapter. In our lives, many electrical appliances are inseparable from it. So what is the use of the power adapter? Let’s follow the power adapter manufacturers to learn about it today!

　　Like our common game consoles, walkmans, laptops, mobile phones, etc., power adapters are needed. Simply put, the power adapter is the function of voltage transformation, that is, the high voltage of the visual AC is converted into low voltage DC power through the rectification and transformation of the power adapter. For example, input: 100-240VAC50-60HZ output: 12VDC1A. Convert high voltage 100-240V into low voltage 12V.

　　Generally speaking, there is a nameplate on the power adapter, which indicates the power, output, input voltage, and current targets. Pay special attention to the scope of the output voltage. This feature is very effective if the mains voltage is only within the range of 100V. . It can be said that the function of the power adapter is to convert voltage and current.

　　What is the use of the power adapter? Just share it here. The power adapter is a small portable electronic device and power supply conversion device for electronic appliances. It connects the power supply to the host with a line, which can reduce the size and weight of the host. A very small number of devices and electrical appliances have built-in power sources in the host. The main function of the power adapter is to convert the voltage and current to make the device reach a safe range.

　　The power adapter has to go through multiple testing procedures in the design and production process, and a lot of testing equipment and instruments will be used. So what are the three major testing methods for power adapters?

　　One, static observation

　　Observe the distribution of components in the circuit, identify the characteristic components, and determine the key inspection points for maintenance through observation. Sometimes, some obvious damaged components can be found for the faulty power supply, which lays a solid foundation for repairing as soon as possible.

　　2. Measuring resistance

　　For the circuit connection method that is not easy to see clearly, the resistance measurement method is used to clarify the connection, direction and then the circuit structure, and at the same time grasp the resistance value of some key points to provide reference data for future maintenance.

　　Three, measure voltage

　　Under the condition of power-on, measure the voltage of some key points and grasp the first-hand information of maintenance. The method of voltage measurement is: DC voltage range for pointer multimeter (select which range to use according to the specific object value) black test pen Ground, connect the red test lead to the test point. The digital multimeter uses the DC voltage file, the black mark is grounded, and the red meter is connected to the test point.

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