The power adapter plays an important role in the power supply field, and we need a power adapter for our daily life and daily work. Nowadays, the power adapters on the market are uneven, and we can't help but worry about their performance. So how do we judge...

Nowadays, power adapters are used in a wide range of applications, which is very demanding on the performance and safety of power adapters. The functional test of the power adapter is especially important. Today, Shenzhen Intermodal Express will explain to you the input and output characteristics of the power adapter.

Power adapter electromagnetic interference, the main aspects of the engineer to consider are: circuit measures, EMI filtering, component selection, shielding and printed circuit board anti-interference design. For engineers designing adapters, the problem of electromagnetic interference is always...

Switching power supplies are widely used in electronic equipment of all walks of life because of their small size, light weight and high efficiency. However, when the switching power supply is in working condition, it will generate strong electromagnetic noise, which will cause instability to its own work. Well, this situation...

In our daily life, we can't do without power products. Switching power supplies can be seen everywhere. There are many manufacturers and the quality is different. For switching power supplies, quality is important. However, due to market reasons, the quality of materials and production processes are different.

What is the 6-level energy efficiency of the power adapter? DOE6 energy efficiency is the US energy efficiency certification for external power supplies. The US local market supervision will check the products. If there is no relevant information, the products will be forced to be removed from the market.

At present, the power adapters on the market, charger product styles, prices vary, and there are differences. In fact, due to different circuit schemes and materials, the power adapter products are divided into three grades, medium and low.

Switching power supply in today's society symbolizes the improvement of people's living standards. The market for switching power supplies is expanding, especially in electrical equipment, medical equipment and industrial equipment, which will surely usher in a good development opportunity.

Switching power supply is a small power conversion device used in various electronic and electrical industries. The so-called industry has specialization, Shenzhen Lianyunda Electronics as a professional switching power supply manufacturer, what are the advantages in design, production and sales?

In the process of marketization, the switching power supply industry is mixed and the quality is mixed. Thanks to the support of production methods and technology, the difference between the appearance of superior and inferior products on the market is getting smaller and smaller, and consumers are more and more difficult to distinguish...

Generally speaking, the true no-load voltage of a common power adapter is not necessarily the same as the nominal voltage. Because the characteristics of electronic components cannot be completely consistent, there is a certain error. The smaller the error, the higher the consistency requirement for electronic components. .

Common maintenance tips for power adapters: Avoid humid environments, pay attention to heat dissipation in high temperature environments, use model-matched power adapters...

Everyone knows that the application of the power adapter is very extensive. However, if it is too much, it is easy to "disuse". In order to reduce the cost and cut corners, the power adapter still has quality problems, which is also an important reason for some products to fail.

The use of switching power adapters, power adapters I believe many people know how to use them, power adapters will not only be used in notebooks, but also can be used in security monitoring, LED lights, and so on.

Switching power supply has anti-interference performance. Due to its own circuit structure (multi-stage series), general input interference such as surge voltage is difficult to pass. Compared with linear power supply, the output voltage stability is compared with the linear power supply. Big advantage.

Four methods to make the power adapter safer: pulse-by-pulse over-power or over-current limit, over-power delay-off protection, flyback overpower limit protection, and constant power limit protection.

That is because you are testing the no-load voltage, most of the power adapter no-load voltage is higher than the nominal value, otherwise the load voltage will drop when connected, can not meet the use requirements.

An important trend in the power adapter market is that customers need adapters with higher output power and smaller size, which involves the use of new topologies. The power adapter mainly reflects some important trends.

In fact, the power supply is normal, so don't worry. When the power adapter is in the process of voltage transformation, a part of the electricity is converted into heat to cause wear and tear. This is the law of physics and cannot be solved. If it is hot, it can be blown with a fan.

Switching power supplies are a large class, and power adapters are switching power supplies. Switching power supply is based on the internal characteristics of the item, the power adapter is highlighted as the auxiliary of the main equipment.

In the digital age, more and more digital products are crowded around people. These low-voltage products require a power adapter that is larger or smaller, without exception.

Switching power adapters are safer to do this: pulse-by-pulse over-power or over-current limiting, over-power-delayed shutdown protection, flyback overpower limiting protection, and constant power limiting protection.

The quality of the material directly determines the performance of the above characteristics. Choose a power adapter or choose a high-end brand manufacturer like Lianyunda. The quality is assured and the price is affordable.

What information can the power adapter see through the model? The model can know the voltage and current parameters and power and which country plug (wall plug).

Why are the power adapters mostly black? That's because black products have the least thermal resistance and are good for heat dissipation. Shenzhen Lianyunda electronic source factory direct supply, affordable ultra-low price.

The power adapter doesn't look very big, but it contains too much knowledge. Today we will talk to you to enhance your understanding of the power adapter.

Power adapter (notebook charger), when the power supply output current, some adapters sound loud, some sound is small, this is a workmanship difference, rest assured to use.

It is normal for the power adapter to make a sound when it is powered on. If the power adapter makes a loud sound, you need to check the cause carefully.

The appearance of the power adapter will directly affect the final transaction; here Shenzhen Unicom Power Adapter Factory tells you about the appearance check procedure of the power adapter?

Power adapter maintenance method: pulse-by-pulse super power or over current limit, super power delay off protection, flyback super power limit, constant power limit maintenance method.

The voltage is appropriate and the current is not less than the power adapter of the original power supply. The voltage of the power adapter can be used as long as it is higher than the battery voltage of the notebook by 4V or more.

Power adapters have been widely used by us. We often use power adapters. However, there are many misunderstandings. There are certain security risks when used incorrectly.

The high frequency of the power adapter has become its development direction. The high frequency makes the switching power supply miniaturized and the power adapter enters a wider range of applications.

The switching power supply and the adapter are both switching power supplies, which are composed of a high frequency switching tube and its control circuit, and the power adapter is a regulated switching power supply.

With the continuous innovation of portable devices, the ever-changing of smart devices and artificial intelligence, the requirements for power adapters are also increasing. From the appearance of the first generation of shoe boxes to the current 6cm, despite this, it is still unable to get rid of the growing user. Expected value

The life of a typical power adapter will be slightly shorter than the life of an electronic product, especially the connection between the power adapter and the electronics.

Just look for the power adapter to charge, but the results are not suitable, so what is the reason?

There are some precautions when purchasing the original power adapter. For example, the voltage in your country, the applicable model, etc. must first be understood.

How to choose the power adapter manufacturer, this problem is indeed a problem that needs serious consideration for friends who have just contacted the switching power supply. First: very cheap not to choose Explain as follows: power adapter cost = shell injection cost + SMT, AI process

Power adapters for different brands of notebooks have some differences in output interfaces, voltage and current values, and therefore cannot be mixed.