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  • 5 points of switching power supply design

    Nowadays, our life is inseparable from the power supply. All aspects require the supply of power. If there is no power supply, nothing can be achieved. Therefore, special care must be taken when designing the switching power supply. Do not let the circuit have problems. So, what should you pay attention to when designing the switching power supply? The manufacturer of the Unicom power adapter believes that the following five aspects need to be noted.

  • How to use the switching power adapter safely and correctly

    How to use the switching power adapter safely and correctly? The switching power adapter has been integrated into our work and life to a large extent, so safe and standardized use is very important. Shenzhen Lianyunda Electronics is a professional manufacturer of switching power supplies.

  • How to check if the power supply fails?

    Many people have some problems soon after they bought the power adapter. Are these really "problematic"? The following is a common sense of the charger manufacturer, and the "problem" will be solved after understanding.

  • The power can't be charged, how to check it out

    The power adapter is broken. Intermodal Electronics recommends that when purchasing a new power supply, the parameters must be checked and the regular power supply with the CCC certification mark selected.

  • How to judge the state of charge of the battery

    Power adapters are ubiquitous in our lives. Mobile phones, electric vehicles, and computers all require it. The power adapter can be said to be widely used. The power adapter mainly supplies energy to the electronic device, so how to determine the battery during use is

  • Application of high power regulated power adapter

    The three-phase voltage regulator consists of three sets of single-phase voltage regulators, which are independently regulated by phase separation and have high output precision. It is an ideal regulated power supply for three-phase equipment. The following is the manufacturer of the power adapter manufacturer

  • Protect the battery power adapter should be charged like this

    Power adapters, we must be familiar with, can be said to be widely used in all aspects of our lives, and we are inseparable. If it does not exist, our days will be greatly affected.

  • Switching power supply maintenance method, which do you know?

    The load short-circuit fault of the switching power supply (especially the short circuit or poor function of the DC/DC converter), at this time, should be disconnected from all the load of the switching power supply circuit, so as to distinguish the switching power supply circuit from the load circuit failure. Letter telegram. If the load circuit is disconnected

  • How about the power supply, see the quality certification will know

    For the enterprise, product quality is the life of the enterprise, especially electronic products. In terms of power supply, product quality not only affects the performance and service life of the power supply, but also concerns the safety of the power adapter. Inferior power supplies can even cause fire and explosion.

  • LYD LIANYUNDA power adapter manufacturers crazy goods, has been in action

    Shenzhen Lianyunda Electronics Co., Ltd. is a manufacturer specializing in switching power supply, power adapter and medical power supply. It has strong R&D and production capabilities, and can also customize for users. Due to the large demand from customers, the company's power adapter manufacturers also arranged production on Saturday and Sunday.

  • Power adapter routine work

    In the self-oscillating converter considered here, the switching action is maintained by the positive feedback of a winding on the main transformer. The frequency is controlled by the drive clamp action, which corresponds to an increase in the field current during conduction. By controlling the amplitude of the primary current cutoff

  • Switching power supply surface physical inspection

    The physical inspection of the surface of the switching power supply is an important basis for the troubleshooting of the switching power supply. At the same time, the appearance of the switching power supply components, circuit boards, solder joints, etc. Switching power supply defect faults are generally caused by errors in the process of manufacturing, resulting in a switching power supply that does not work properly, and there are often physical defects in the switching power supply.

  • Laptop power adapter correct disassembly method

    The notebook power adapter is broken, I want to fix it first, but the first step is difficult. How to open the outer casing of the power adapter? If it is violently dismantled and made up, then even if it is repaired, it will be outside. Can't use it. How to dismantle

  • The difference between power adapter and LED driver

    LED drive according to the output type is DC output type, divided into constant voltage and constant current two, mostly constant current drive; whether it can drive LED lights, mainly depends on whether the output voltage and current are within the LED bearing range. The power adapter is a regulated power supply, and the LED driver is a constant current power supply.

  • Multi-output flyback switching power adapter

    The flyback unit combines the functions of an isolation transformer, an output inductor, and a freewheeling diode in a transformer. This combination of electromagnetic integration makes the circuit very cost effective and efficient and stable DC output.

  • Basic working principle of undervoltage protection

    The figure shows a method of energy storage and transfer. When SW1 is turned on, the power adapter charges C1 and C2 through resistors R1 and R2, respectively, and their final voltage value will reach the power adapter voltage Vs.

  • What are the reasons for the notebook power adapter being hot?

    When the notebook is fully charged and the power adapter plug is unplugged, the power adapter will be hot too hot. Although it is not surprising that the notebook power adapter is hot during charging, the temperature of the adapter is too high, and it feels when the plug is pulled. Hot, then there is a problem, the cause of the laptop power adapter hot temperature is too high may be caused by external factors.

  • Efficient auxiliary power adapter

    The two positions of the voltage selection jumper are used to select whether to operate under 110V or 220V AC power adapter, and rectifier D~D2 can effectively supply 110V. In this case, the effective 110V AC power adapter can also supply 110V cooling fan

  • What are the power adapter circuit debugging steps?

    It turns out that an electronic device, even if installed according to the designed circuit parameters, is often difficult to achieve the desired results. Therefore, the skills to debug electronic circuits are also essential for those engaged in the design and development of power adapters.

  • Selection of power adapter output rectifier

    The output rectifier diode of the 1.5V power adapter output is selected. The peak current of the output rectifier is about 4 times of the average value of the output current. Since the average current of the output is 4A, the peak current flowing through the output rectifier is about 16A, so the extra current is selected as 16A. Withstand voltage

  • What should I do if the power adapter fails?

    Do you have a sense of security? A sense of security, like the number of remaining power; when the battery is only 20% left, it panics and starts to be anxious. Obviously, the device has been connected to charge, but it indicates that the battery is low. What should I do if the power adapter fails?

  • How to solve the problem of heating when charging high-power power

    I don't know if you know that the temperature is too high, it is harmful to the lithium battery, not only will shorten the battery life, but also there are certain safety hazards.

  • Power adapter charging tips

    We often use the power adapter to charge, but do you know what is constant voltage charging? What is constant current charging? Do you know the concepts of open circuit voltage, termination voltage, depth of discharge, over discharge, and overcharge? Come and explain for everyone

  • Replace notebook power adapter precautions

    A friend who knows the computer knows that the quality of the power supply will also affect the performance of the computer. If the power adapter is used for a long time, it will inevitably have problems. At this time, we should consider changing a new power supply, then when replacing the power adapter. ......

  • The charger cable is dirty, so cleaning is more effective

    What if the charging line becomes dirty and yellow? I believe many people have encountered such a situation: the charging line becomes dirty and yellow. Do you think that if the charging line becomes dirty and yellow, it is useless and cannot be removed? Of course, today Shenzhen Intermodal Electronics will teach you how to

  • Power quality is related to consumer safety

    Power resources can not only help people, but also hurt people, just like a double-edged sword. Therefore, we must pay attention to safety when using electricity, and ensure that the safety of electricity and the quality of the power adapter are closely related.

  • Laptop power adapter correct disassembly method

    The notebook power adapter is broken, I want to fix it first, but the first step is difficult. How to open the outer casing of the power adapter? If it is violently dismantled and made up, then even if it is repaired, it will be outside. Can't use it. How to dismantle

  • Replace notebook power adapter precautions

    A friend who knows the computer knows that the quality of the power supply will also affect the performance of the computer. If the power adapter is used for a long time, it will inevitably have problems. At this time, we should consider changing a new power supply, then when replacing the power adapter. ......

  • Selection of power adapter output rectifier

    The output rectifier diode of the 1.5V power adapter output is selected. The peak current of the output rectifier is about 4 times of the average value of the output current. Since the average current of the output is 4A, the peak current flowing through the output rectifier is about 16A, so the extra current is selected as 16A. Withstand voltage

  • Battery and power adapter power supply principle

    Today's laptops have built-in batteries. When the power is unplugged, the notebook can still be powered by a battery and lasts for several hours. In addition to the built-in battery of the notebook, the use of mobile power charging can be seen everywhere, then here...

  • Will you still buy the cottage power adapter?

    Have you bought a poor quality power adapter? I bought a power adapter for the cottage before, 20 yuan, it took a month to break, the contact is bad, the line is too thin. Then I changed a regular brand, 70 pieces, and it has been used for more than a year now.

  • Why is ultrasonic welding of the power adapter?

    The outer casing of the Unicom power adapter is made of green, temperature-resistant and flame-retardant PC material, and ultrasonic welding is used to make the outer casing tight, more firm, more resistant to falling and durable.

  • Only do the power adapter that customers need - Intermodal Electronics

    The company's power adapter brand manufacturers have been committed to research and development of environmentally friendly power products, providing users with customized production services for environmentally friendly power adapters. Since the establishment of the company, Lianyunda Electronics strives to achieve safety, energy saving and high efficiency for each power supply product...

  • The inner material of the power adapter

    With the continuous upgrading of smart products, the domestic power adapter industry has also developed, and the joint power adapter manufacturers have also obtained many new products through technology research and development. However, due to different production processes, the quality of the adapter transformers produced is also different.

  • Is the notebook power adapter hot and hot?

    Is the notebook power adapter hot? Actually, this is normal. It has to work. To convert the output power, it will consume energy. Some of it will become heat. Also, see if you have a battery installed, or if the battery is Normal and so on.

  • Shock! The 5G era is coming!

    According to the news, China's communications industry is about to have a historic breakthrough. Huawei launched 5G testing in India to try to promote the innovation and application of 5G technology. At present, 4G networks often have problems such as insufficient network coverage, signal stability, and frequent signal switching.

  • Lianyunda Electronics adheres to 12 years and its quality is always the same

    Shenzhen United Transportation Electronics has adhered to the quality tenet for 12 years: no best, only better. 12 years of focus on the production of power adapters, has formed a complete process, with advanced equipment and professional technical team, the company has always adhered to the high quality concept...

  • How the power adapter works

    The power adapter is a kind of power supply that controls the time ratio of the switch to be turned on and off by modern electronic technology to maintain a stable output voltage. The switching power supply of the power adapter is generally composed of a pulse width modulation (PWM) control IC and a MOSFET.

  • The characteristics of the Lianyunda  power adapter

    Safety: The design of intelligent IC solutions, over-current, over-voltage, short-circuit, protection, anti-explosion, guarantee the safety of personnel and equipment. Efficient: The input current is stable and the conversion rate is over 85%.

  • Switching power adapter production process

    Switching power adapters, also called power adapters, are also called chargers; they are an external power conversion device that can be converted from alternating current to direct current and can be converted at the same time.