One is a constant voltage type, and the other is a constant current type. It can be used according to different soft light belt models with different power supplies. If it is small, it will be very slow, and the power adapter will be hot and cause aging. It is recommended not to use it.

Generally, the power supply is not measured by this parameter. The reason why they write this parameter on the label is because of the safety certification requirements. The input current test standard is within all input voltage ranges (some are 100-240V, the most stringent is 85-265V).

If you want to detect the full load rated output current of the power adapter, look at the low voltage output voltage/current value marked by the adapter and calculate the power value = voltage X current.

The parameters that the power adapter needs to pay attention to are: output voltage, rated output current, maximum output current, and conversion efficiency.

This is really not a good calculation, the switching power adapter 12V20A shows that it can provide 20A maximum current; the actual output current is determined by the load; the switching power adapter is unloaded, and its own circuit needs to consume power, generally not big.

If there is only a problem with the power indicator and the adapter is not a problem, you can replace the indicator and re-insert the indicator, but this light only serves as a view recognition.

The power adapter is a small portable electronic device and the power supply conversion device of the electronic appliance is commonly used in small electronic products such as mobile phones, liquid crystal displays and notebook computers.

The great rejuvenation of the Chinese nation will not be achieved with joy, joy, and drumming. It is necessary to promote the ability of independent innovation through self-reliance.

According to the overall planning of the country, China will actively promote the construction of charging piles in 2018, and plans to build 600,000 charging piles, including 100,000 public charging piles and 500,000 private charging piles.

For the charger, most people use it, but little is known. The built-in power supply and the non-built-in power supply charger are distinguished by whether or not a built-in buck regulator module is built in.

According to a research institute, China's power market will continue to grow steadily in 2016-2020. By 2020, the size of China's power market will reach 257.6 billion yuan.

Usually the input voltage allowed by the load has a safe range. For example, the input requirement of many 2.5-inch hard disks is 5V plus or minus 5%. If the input voltage is too large or too small, the protection circuit will be activated and the operation will stop.

The power supply is very important for the products and equipment that need to be powered. At present, there are few well-known brands such as Shenzhen Intermodal Power Supply. Most of the cheap and inferior power supplies are flooding the market. What are the hazards of using inferior power supplies?

Shenzhen Lianyunda Electronics has always insisted on making high-quality power adapters, and the products are sold at home and abroad. For the customer, the quality, materials and parameters of the product are important credentials for custom switching power supplies.

Behind every successful product is a powerful designer. Except for professionals, few people know how to design a switching power supply. What are the conditions and factors for designing a switching power supply?

With the vigorous development of electronic technology, electronic equipment and people are increasingly connected, and as a power conversion equipment, electronic and electrical products are inseparable from switching power supply. There are many brands of switching power supplies on the market today. There are brands with groceries, and the quality is high or low.

The farthest distance in the world is not life and death, but I am standing by your side, but you are playing mobile phones. Mobile phones are an indispensable communication tool in daily life. You can play mobile phones, go to the bathroom to play mobile phones, and even play mobile phones while sleeping.

It was learned from the General Administration of Quality Supervision, Inspection and Quarantine that the second batch of AQSIQ in 2018 randomly selected 70 batches of power adapter products produced by 65 enterprises in six provinces and municipalities including Beijing, Jiangsu, Zhejiang, Fujian, Guangdong and Chongqing.

Today's electronic products are no longer unusual, and can be seen everywhere in the market. There are also many manufacturers of power adapters. It is important for enterprises to choose a suitable power adapter manufacturer. If you choose an unprofessional manufacturer, you will lose more than...

The electromagnetic interference sources in the power adapter mainly include switching devices, diodes and non-linear passive components; in the switching power supply, improper wiring of the printed circuit board is also a major factor causing electromagnetic interference.

Nowadays, the application of lithium batteries is quite extensive. We can see them not only on smart hardware such as mobile phones and computers, but also as the main power source for electric bicycles. So why does a lithium battery become a mainstay?

Transformer is a very important component in the power adapter, which functions as power transmission, voltage conversion and insulation isolation. However, in the daily use of the power adapter, the transformer will cause a certain loss, and the loss of the transformer includes...

According to the observation and understanding of the market by Lianyunda power adapter manufacturers, it is found that in the past two years, the components and e-commerce are very popular, and various types of platforms are emerging one after another. Many distributors have also joined the market of component e-commerce, in order to further compete for the market. element……

Switching power supply is everywhere, and it is an indispensable electrical product. The switching power supply is composed of both MOSFET and pulse width modulation. It uses electronic technology to control the switching power supply's turn-on and turn-off time.

The power adapter market is a mixed bag. When purchasing, you must pay attention to whether there is safety certification, observe some details such as quality work, and avoid the purchase of inferior products, resulting in financial losses.

Power products are essential in our lives, especially chargers and power adapters. I don't know how much people know about the power adapter. In fact, the power adapter is a kind of power supply conversion device, which is widely used.

When we sighed that the fire was ruthless, we also warned that all kinds of electrical appliances around us should be operated correctly to avoid another fire. In recent years, fires have occurred due to various improper operations.

Power adapters generally have CE, CCC, UL and GS, PSE and other certifications. To some extent, certification means that the quality of the power supply has a guarantee. The following Shenzhen Intermodal Electronics will briefly introduce these types of certification.

The speed of charging is affected by many aspects. Internal factors include the electronics itself, power adapters, external factors including weather, and how users use electronic products are affecting the rate at which electronic products are charged.

Under normal use, the power adapter can be used for 2-3 years. If it is used improperly, it will directly affect the service life of the power adapter. Therefore, the service life of the power adapter is directly related to how we use it.

As a power supply device for small appliances, the power adapter plays an important role in our lives. Due to market reasons, product quality is different, there will be many problems. So what are the faults in the power adapter during use?

All along, iphone has become synonymous with vanity, some people pay all the price in order to buy iphone. The long-awaited Apple 8 has been officially launched, and the fruit powders are starting to change new machines. The sales of the new Apple mobile phones seem to be worse than...

We all know that no matter what product has its shelf life, of course, LED power is no exception. Shenzhen Lianyunda Xiaobian believes that the impact of LED power supply life, the following aspects.

With the development of social economy, some counterfeit and shoddy products have appeared in the market. The practice of counterfeiting and selling fakes seriously affects the market operation order, which not only damages the interests of enterprises, but also hinders their healthy development, and also affects the quality of life and life safety of the people.

A qualified power adapter is subject to multiple inspections before it can be introduced to the market. Generally, the inspection work mainly refers to full-time inspection, that is, the full-time personnel of the quality management department of the power adapter manufacturer according to the corresponding technical documents.

We all know that the battery is the core component of the electric car. If you use the brand's power adapter to charge, the battery maintenance is good, the life can be extended, and the battery life and safety will be better. But most people's electric car batteries generally can't last for too long...

A power adapter is an interface converter and a hardware interface device. Its main function is to connect hardware or electronic interfaces with other hardware or electronic interfaces and use them as information interfaces. The power of the power adapter on the market...

The notebook's power adapter is broken and can be repaired. However, since the notebook's power adapter is usually ultrasonically bonded and does not have a nut to fix the case, once the case is removed, the case cannot be restored, which will affect the normal use when used... ...

To solve the ESD problem, the equipment should be classified to achieve different processing methods for different types of equipment: One type of equipment: metal structure equipment, metal casing connected to the earth. Including two cases: one is connected to the earth through the system grounding wire, and the other is through the power supply

Accurately measuring power ripple is an art in itself. In the example shown in Figure 1, a junior engineer completely misused an oscilloscope. His first mistake was to use an oscilloscope probe with a long ground lead; his second error