One of the most difficult problems in the design of a switching power adapter is to reduce the common mode conducted RF current to an acceptable range. This conductive electrical noise problem is mainly caused by parasitic static electricity and electromagnetic coupling between the switching elements and the ground plane.

The trick is to use the coup, today power adapter manufacturers come to teach you the clever skills of several current detection circuits. To know that current detection or feedback is usually required in equipment such as power supplies, current detection is usually amplified by a series sampling resistor in the amplifier...

We all know that each country has its own technology, just like the coins of each country are different. The power adapters produced are definitely different. Today, we typically say that the European power adapter and the US power supply...

Buy a power adapter online, you will find that the price gap is still very large, the same power of the power products, the price can sometimes differ by as much as tens of dollars. Why is this happening? So where is the price difference?

The direct-off-line power adapter is named because it is powered directly from the AC adapter, rather than the bulky 50-60Hz low-frequency isolation transformer commonly used with linear power adapters.

The ideal power adapter transient suppression device will open at normal voltage, can conduct electricity without delay under slight overvoltage, and does not allow voltage to increase during the clamping period, and can withstand unlimited current and power. The stress can return to the open path after passing

In the development of new products for switching power adapters, in order to ensure that the adapter can adapt to the operating requirements of different environments during use and provide users with continuous and stable current and voltage conversion work, engineers usually provide adapters...

With the development and innovation of power electronics technology, switching power supplies are widely used in almost all electronic devices. The combination of "switched power", "fashionable appearance", "stable performance" and "good quality" are favored by customers.

In the trend of international trade, it is more necessary to make the power adapter operate with the nominal input of 110V/220V. To meet these dual voltage requirements, a wide variety of technologies can be used, including one or more, manual...

A voltage-controlled power adapter is essentially a device with low output impedance. Because the output voltage and performance characteristics of any two or more devices are not exactly the same, when these devices are operated in parallel, the load current is not evenly shared.

As the power source of the whole security system, consumers must be cautious when choosing. If you choose a little carelessness, it will cause security risks. How to buy it? Pay attention to the following points when purchasing security monitoring power supply

Before the switching power supply leaves the factory, it must undergo rigorous testing, and the aging test must be done. After the aging test of the switching power supply, basically no problem occurs during use, and the service life and quality can be guaranteed.

The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of components such as a casing, a transformer, an inductor, a capacitor, a control IC, a PCB board, etc. Its working principle is converted from an AC input to a DC output; Way can be divided into

The power adapter provides a lot of convenience for our lives, so how do we repair the power adapter? The following Shenzhen Intermodal Electronics will let you know the five steps of power adapter repair

The newly purchased power adapter input current is larger than the original one. Can it be used? If your original adapter is the original one of the manufacturer, the voltage is the same, the current can be replaced by a small current, and vice versa.

I want to purchase a batch of power adapters, but I don't know if I should find that manufacturer. I don't know much about the power industry. Is that brand trustworthy?

With the advancement of mankind, the development of science and technology. Everyone in the modern family has large or small appliances. With electrical appliances, of course, it is inseparable from auxiliary equipment such as switching power supplies. The main thing we want to talk about here is the security power adapter.

The power adapter is also called an external power supply. It is a power supply voltage conversion device for small portable electronic devices and electronic appliances. It is commonly used in mobile phones and small electronic products.

The power adapter commonly used in the power adapter market is transformed, and can be understood as a low-voltage regulated power supply when the power is satisfied.

The development of science and technology has promoted the popularization of smart devices. However, the natural advantage of multi-functionality is the disadvantage of very fast power consumption. The power adapter is becoming smaller and easier to carry because of its smaller size in research and development.

The positive standard power adapter generally refers to the power adapter produced by the regular power adapter manufacturer through the safety certification.

The power adapter is generally a transformer power supply. The charger is generally a switching power supply. As long as the voltage of the power adapter and the charger voltage are the same or only a few volts apart, they can be used universally.

The computer's "power adapter" is the notebook's power supply, with one end plugged into the laptop and the other end plugged into a power outlet.

General power adapter wholesale is to get goods from the power supply manufacturers, and then sold in Taobao or exported to foreign countries. Shenzhen Lianyunda Electronics still adheres to the quality of military industry, and it is worthy of praise for the safe use of electricity for millions of consumers.

When charging with the power adapter, sometimes we encounter a sudden sparking phenomenon at the moment of power-on. Or if there is a "sweet" sound here, what is the situation?

An inductor is a component that can convert electrical energy into magnetic energy and is an important component in a power adapter. What role does the inductor play in the power supply?

Resistor is a very common component in the power adapter. The sub-circuit usually plays the role of voltage divider. Recently, the shortage of resistors and capacitors and the price increase are also very troublesome.

The capacitance is the physical quantity that characterizes the charge capacity of the capacitor. The amount of electricity we need to increase the potential difference between the two plates of the capacitor by one volt is called the capacitance of the capacitor. Capacitors are mainly used in power supply filtering, signal filtering, signal coupling, resonance, DC blocking, etc.

PSE certification is a mandatory safety certification in Japan. The full English version of PSE certification is called Product Safety of Electrical Appliance Materials. About PSE certification The power adapter is compatible with the AV product standard IEC60065 and the IT product standard IEC60950.

Shenzhen Lianyun Electronic's power adapter products also have international safety and electromagnetic compatibility certifications such as CB, UL, TUV, CCC, SAA, PSE, CE, FCC, etc. The certification is quite comprehensive and indirectly proves its product quality and quality assurance.

The power adapter is divided into a wall-mounted power adapter and a desktop power adapter, and the wall-mounted power adapter is also called a wall-mounted power adapter. In fact, it can be explained simply that the wall-mount power adapter is a power adapter that can be directly plugged into the board.

Power adapters have been widely used in people's lives, but a variety of power adapters of varying quality are also flowing to the market, but I don't know how much you know about the power adapter housing material.

The power adapter is very versatile and we can't live without it in our daily lives. In order to extend the life of the power adapter, it is important to develop some good charging habits. So what should we pay attention to during the charging process?

When the power adapter we use is damaged, or even use it, will you do this, will you repair it yourself? If you don't understand the circuit, Xiaobian recommends not to repair the power adapter by yourself.

Shenzhen Lianyunda Electronics Co., Ltd. has strong strength and excellent quality. It has a team of 30 years of experience and can independently develop and produce. Strict quality inspection, selection of superior materials, resulting in high-quality power adapters.

Shenzhen Lianyunda Electronics Co., Ltd. produces power adapters with good quality, safe power supply, quality clearance, and can be customized according to requirements. The power adapters produced by Lianyunda are far higher than the industry standards, safe to use, and after-sales protection.

Low-carbon life, starting from small things! The large wiring board on my computer desk is full of sockets. When I turn off the lights every night, there is always a traffic light of the power adapter on the dark desktop. I don't know if you are used to unplugging the power supply at any time.

With the strong environmental awareness, many places in our lives need to be recharged: the phone needs to be charged, and the car needs to be recharged. If the method of use is not correct, it may lead to an accident. Master the following methods to better protect our chargers

Nowadays, the application of batteries is everywhere in our lives. Therefore, the power adapter has become an indispensable role in our lives. However, we often encounter such problems, the power adapter is hot...

Power Adapters Chargers are not unfamiliar, it can be said that all aspects of our days, and we are inseparable. Without it, our days will be greatly affected. This kind of situation often occurs, because I forgot to bring the charge