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August 05, 2022

How to use the power adapter reasonably

So how do we use the power adapter reasonably? (1) Prevent the power adapter from being used in a humid environment and prevent water from entering. Even if you put the power adapter on a table or on the ground, be careful not to put wet objects such as drinking glasses around to avoid getting the adapter wet.

July 09, 2022

Why does the power adapter cause noise interference?

Power adapters are very common in daily life, and of course there are some common problems, such as noise interference in the adapter. Shenzhen Waweis Technology Co., Ltd. is a professional power supply adapter manufacturer.

July 09, 2022

The specific analysis and treatment method of power adapter failure

Nowadays, the power adapter has been integrated into our daily life and work. We use it everywhere. If we use it more, there will naturally be problems like this. Today, the editor will introduce the specific analysis and processing methods of the power adapter failure. As follows:

June 21, 2022

Online explanation! What should I do if the laptop power adapter is hot? Is it normal?

1. Technology is advancing by leaps and bounds, people's living conditions are getting better and better, and everyone is basically a family. The progress of network technology facilitates us to search for information and materials, Taobao, watching news, etc., and has become indispensable for work, life, leisure, entertainment, etc. The main frequency of notebook computers is changing with each passing day, the LCD screen is getting bigger and bigger, and the power of the notebook power adapter is also increasing, reaching

June 08, 2022

Some questions about Power Supply Adapter

In fact, the sizzling sound in the power adapter is the sound of the inductance coil vibrating due to the action of the magnetic field when the alternating current passes through. The inductance coil is generally packaged with enamel, epoxy resin, heat shrink tape, etc. Generally, if the enameled wire is wound and packaged, It can be well sealed to isolate the sound generated by the vibration of the inductive coil.

May 28, 2022

What problems can occur when the power adapter is overloaded?

In the case of overload or short circuit of the power adapter, the temperature increase is a symbolic situation, and attention must be paid to avoid the appearance of a large number of problems. There are a large number of diodes and capacitors inside the adapter. If any of the small parts is short-circuited, the internal power loss will increase, and the heat will also increase. This abnormal working state often causes the product to heat up. If you are not careful, a fire can easily occur.

May 16, 2022

About the Power Supply Adapter

We know that some computer power adapters are not universal, but there are very few friends who know the reasons. Today, the power adapter manufacturer will tell you what the three reasons are. The main points are as follows: 1. The size of the output interface of the product is different: the interfaces of most laptop power adapter brands are different, which means that using other brands of power

March 01, 2022

How the power adapter works?

First briefly introduce the application scope of the power adapter Power adapter, whose English name is Power adapter, is a power supply conversion device for small portable electronic equipment and electronic appliances. It is generally composed of a casing, a power transformer and a rectifier circuit. According to the connection method, it can be divided into wall type and desktop type. It is widely used in telephones, game consoles, langu

December 07, 2021

They are all type-c interfaces, can PD notebook chargers charge mobile phones?

Low-power mobile phone chargers can charge laptops that support the PD protocol. not recommend High-power PD laptop adapter, charging low-power mobile phones, this is no problem. Take a look at your power adapter, the supported input voltage and current, there are a variety of specifications that can be dynamically adjusted. The PD charger will automatically recognize the charging current of the mobile phone or computer, so as to auto

November 27, 2021

What is the difference between GaN and PD fast charging?

GaN fast charging and PD fast charging are different concepts! GaN →Gallium Nitride is a third-generation new semiconductor material, which has the characteristics of large forbidden band width, high thermal conductivity, high temperature resistance, radiation resistance, acid and alkali resistance, high strength and high hardness. It was widely used in new energy vehicles, Rail transit, smart grid, semico

November 27, 2021

What is Burn in?

Burn in refers to the use of high-temperature methods to impose environmental stress on products, while environmental stress screening (ESS: Environment Stress Screen) includes not only high-temperature stress, but also many other stresses, such as temperature cycling, random vibration, etc., as shown in the figure Show. Therefore, aging is a kind of environmental stress screening. But now many companies have expanded the meaning of the word "aging". Aging is equivalent to environmental st

November 23, 2021

Advantages of GaN Charging Technology

Gallium nitride is an inorganic substance with the chemical formula GaN, a compound of nitrogen and gallium, and a direct bandgap semiconductor. The structure of this compound is similar to wurtzite with high hardness. Gallium nitride has a wide energy gap of 3.4 electron volts, which can be used in high-power, high-speed optoelectronic components. Traditional charging h

August 12, 2021

What is the difference between USB type C PD fast charging and QC3.0, QC2.0 fast charging?

1. The difference between the charging power of the power supply 2. The difference between power supply equipment and application equipment 3. The difference between the USB interface 4. The communication identification channel of fast charging is dif

August 10, 2021

Notebook power supply, typical use Q&A

1. Can adapters with the same voltage and different current be used on the same laptop? When the notebook is running at a high load, the incoming current is correspondingly larger, and when the notebook is lightly loaded or in standby, the current is smaller. The power supply with large nominal current has enough current margin. Some people use 45W It is no problem to use the power supply instead of 60W. The reason is that there is some margin in

January 08, 2021

Iphone 12 Wireless Charger

Apple officially released iOS 14.3 and iPadOS 14.3, and made many updates. In addition to being compatible with AirPods Max headsets, the biggest highlight should be the introduction of the new image format ProRAW. However, the eighth and ninth items in the updated list may be ignored by everyone, and did not attract many people`s attention. They are fixing the "device may not be able to charge wirelessly" and the MagSafe dual charger may not be the maximum power for the iPhone. Wireless charging problem.

October 16, 2020

Car charger

On-board chargers refer to conventional on-board chargers powered by car batteries (12V for cars, 24V for trucks), which are widely used in the field of lithium battery charging for various portable and handheld devices. Such as: mobile phones, PDAs, GPS, etc.; car chargers must not only consider the actual needs of lithium battery charging (constant voltage CV, constant current CC, overvoltage pro

September 27, 2020

How to Use the Wireless Charger

1. Put the mobile phone with wireless charging function on the wireless charging board and place it in a good position so that it can be charged. Note that some wireless charging panels support different mobile phone models. You should choose the wireless charging panel according to your mobile phone model. 2. It does not currently support long-distance charging. This technology may be achieve

September 16, 2020

Shenzhen Waweis Technology CO., LTD.

The Company Introduction: Shenzhen Waweis Techn

August 27, 2020

How to ensure the effect of ultraviolet sterilization

Nowadays, more and more places begin to use sterilization lamp, but many people don't know how it works. Basically be the lamp that passes special character to be able to emit a strong ULTRAVIOLET ray when bright, below such circumstance, how can just assure the action of ultraviolet ray sterilization lamp? This is very key, if you can grasp the knowledge of this aspect, then it can play a more powerful effect. The first, want to avoid surface layer t

August 25, 2020

Notes on selection and use of switching power adapter

Notes on switching power supply 1. Matters needing attention when selecting switching power supply 1) Select the appropriate input voltage specification.

August 24, 2020

How to choose the right power adapter

The update speed of electronic products is very fast. Sometimes after several updates, the original power adapter cannot be found. What can I do to power the electronic products? Many people want to buy power adapter, but there are so many power adapter products in the market, how to choose? For many people, the concept of power adapter only stays in the stage of charger, but in fact, power adapter is a kind of transformer, which is widely used in charger. For those who are not familiar with the power adapter, what kind of power adapter is used to charge.

August 20, 2020

Ultraviolet sterilization lamp - legendary sterilization expert

At present, there are a lot of ultraviolet sterilization lamp in the market, we may not be particularly aware of ultraviolet sterilization lamp, now we do not introduce, it is actually a kind of low-pressure mercury lamp. Low-pressure mercury lamps emit UV light by being activated at lower mercury vapor pressures (<10-2Pa). There are two main spectral lines: one is the wavelength of 253.7nm; The other is the 185nm wavelength, both of which are uv rays invisible to the naked eye.

August 18, 2020

What should germicidal lamp do after sterilization?

Fixed point timing sterilization, ventilation half an hour after completion Compared with alcohol, disinfectant and other sterilization products, the biggest feature of ultraviolet germicidal lamp is "fast". Therefore, it is not necessary to turn on the sterilization lamp for a long time when it is in use. Instead, reasonable sterilization time should be arranged according to the space use

August 18, 2020

Comparative analysis of the use of aluminum and plastic cases for switching power supplies?

There are usually two types of shells for switching power supplies, one is a plastic shell and the other is an aluminum shell. What is the difference between the aluminum case and the plastic case of the switching power supply? This is a comparative analysis of whether the switching power supply is made of aluminum or plastic. 1. Advantages and disadvantages of switching power supply aluminum shell:

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