Новости
Как выбрать китайский модуль питания постоянного тока? Почему стоит выбрать модуль питания постоянного тока?
Автор：Модуль питания ZYG Time： 2022-7-29
Today, DC-DC power modules are widely used in post and telecommunications equipment, base stations, user power systems, monitoring systems and other equipment, industrial automation equipment and many other fields. So what exactly is a DC-DC power module, and what should be paid attention to when using it?
A DC-DC power module is a power module that converts DC power to DC power. Speaking of which, many people may ask, isn’t it unnecessary to convert DC to DC? In fact, in the process of daily use, our current is not static, sometimes high voltage is required, and sometimes low voltage is required. The DC-DC power module is to convert high voltage or low voltage current into the pressure we need. It works by converting direct current to alternating current, and alternating current to the direct current we need.
In daily use, the DC-DC power supply module is completed by the switching oscillation circuit, which itself will generate common mode and differential mode noise interference. So it is important to know that the current value should be more than twice the input current value. The internal resistance of the power supply should be low to reduce DC consumption. In addition, in order to ensure the strong reliability of the power module under long-term operation, its working power should be more than 10% of the rated power, so as to prevent the module from being stuck or slightly output causing voltage instability, which will affect our work.
Many customers use power modules to achieve power isolation. Then, according to different isolation requirements, it is necessary to select different power supplies, and there must be enough circuit distance between the output and input power supplies to avoid weakening the isolation effect during design.
Как правильно выбрать модуль питания
1. Circuit Design Principles and Technology
Only from a professional point of view, can the principle of the circuit and the quality of the circuit be distinguished. At present, power modules can be divided into two types: bare board and filled and sealed. The bare board can be divided into two types: reasonable, orderly, generous, orderly layout of electronic components, soldered, and straight. However, the packaged sealed module cannot be seen inside, but because it is not exposed, it is much better in terms of safety and performance indicators. The soldering process can include hand soldering and wave soldering. The soldering quality of mechanized wave soldering is better than that of manual soldering.
2. Components of the chip
The core of the power supply is the integrated circuit, which is like the brain of the power supply. The quality of the integrated circuit directly affects the parameters of the power supply.
3. Transformer components
Determine whether the power supply, temperature resistance, etc. are transformers. The transformer is responsible for completing the AC and DC power supply, and the energy overload will saturate the bomber.
4. Electrolytic capacitors and ceramic capacitors
Because electrolytic capacitors are completely monolithic capacitors, they have high reliability. They use sulfate as an insulating medium, which can make the volume smaller. The + symbol and some marking symbols are added to it. They are generally used for low-frequency cross-linking and bypass filters. The disadvantage is that The loss of muons is large. Due to the use of full monolithic electrolytic capacitors, the reliability is high. Due to the use of special materials, the performance is better than that of ordinary electrolysis, and the frequency characteristics are better, but the capacity is too much. Can be used in precision circuits such as oscillators or timing circuits.
Ceramic capacitors include ceramic dielectric capacitors, ceramic chip capacitors, ceramic tube capacitors, and ceramic semi-variable capacitors. It is mainly non-polar, the dielectric material is good, and the capacity cannot be too large. Suitable for high frequency circuits.
5. Batch testing of aging and high temperature aging
No matter how well a product’s materials and production processes are controlled, burn-in testing is required. Since the input detection of electronic components and transformers is difficult to control, only through the aging and high temperature sampling of the entire batch of power supplies can the quality stability of this batch of power supplies and whether there are potential safety hazards can be detected. Material.
релевантная информация
-
2023-7-12
AC DC Converter SPM Series: Efficient Power Conversion for Your Electronics
Introduction: In today's digital age, electronic devices have become an integral part of our lives. From smartphones to laptops, from televisions to refrigerators, we depend on these devices for our daily activities. However, all these devices require power to function, and that's where AC/DC converters come into play. The SPM Series AC/DC converter is a cutting-edge solution that offers efficient power conversion for your electronics. Let's delve deeper into its features and benefits. Efficiency and Reliability: One of the key features of the SPM Series AC/DC converter is its high efficiency. With an efficiency rate of up to 95%, the converter minimizes power loss, resulting in lower energy consumption and reduced electricity bills. Its advanced design ensures stable and reliable...
Посмотреть детали -
2023-9-25
DC-DC Power Supply Module price: Efficient and Reliable Solution for Power Conversion
Introduction: In today's technologically advanced world, power conversion plays a crucial role in various industries. From consumer electronics to automotive applications, efficient and reliable power conversion is essential for the proper functioning of devices. One of the most popular solutions for power conversion is the DC-DC power supply module. This module offers numerous advantages over traditional power conversion methods, making it an ideal choice for many applications. Efficiency and Reliability: The primary advantage of using a DC-DC power supply module is its high efficiency. This module efficiently converts the input voltage to the desired output voltage, minimizing the power loss during the conversion process. Traditional power conversion methods, such as linear regulators, often result in significant power dissipation, leading to...
Посмотреть детали -
2023-10-18
In today's technology-driven world, having a reliable and efficient power supply is crucial. Whether you are a gamer, a content creator, or a professional working with heavy-duty applications, having a power supply that meets your power demands is essential. This is where a fully modular 650W power supply comes into play. It offers the perfect solution for efficient and customizable power management. Firstly, let's understand what a fully modular power supply is. Unlike traditional power supplies, where all cables come pre-attached, a fully modular power supply allows users to connect only the cables they need. This eliminates unnecessary cable clutter inside the computer case, improving airflow and reducing heat build-up. With a fully modular power supply, you have the freedom...
Посмотреть детали -
2023-4-20
How to Build a 120 Volt AC Power Supply for 3 Volt DC Output
If you looking to power a small device that requires 3 volts of DC power, you may be wondering how to build a suitable power supply. One option is to build your own 120 volt AC power supply and use a voltage regulator to step down the voltage to 3 volts. Here how to do it: Materials: - Step-down transformer (120V AC to 12V AC) - Bridge rectifier - Capacitor - Voltage regulator (LM317) - Heat sink - Resistors - Potentiometer - LED - 3 volt DC load - Soldering iron and solder - Multimeter Step 1: Choose a transformer The first step is to choose a step-down transformer that converts the 120V AC input to 12V AC output. Make...
Посмотреть детали -
2023-4-16
Generating DC Power from AC with an AC-DC Converter
In today world, we rely heavily on electronic devices that require direct current (DC) power to function. However, the power that is supplied to our homes and workplaces is alternating current (AC) power. Therefore, it is necessary to convert the AC power into DC power using an AC-DC converter. An AC-DC converter is an electronic device that converts AC power to DC power. It is used in various applications, including powering electronic devices such as computers, televisions, and mobile phones. There are several types of AC-DC converters available on the market, each with its own unique features and specifications. One of the most common types of AC-DC converters is the diode bridge rectifier. It is a simple circuit that uses...
Посмотреть детали -
2023-12-5
Highly Efficient 850 Watt Modular Power Supply: The Ultimate Choice for Power and Flexibility
In today's fast-paced digital world, having a reliable and efficient power supply is crucial for both personal and professional use. Whether you are a gamer, a content creator, or a business professional, the need for a robust power supply cannot be overstated. Introducing the Highly Efficient 850 Watt Modular Power Supply – the ultimate choice for power and flexibility. One of the most significant advantages of the Highly Efficient 850 Watt Modular Power Supply is its exceptional power output. With a maximum output of 850 watts, this power supply can handle even the most demanding tasks with ease. Whether you are running multiple high-end graphics cards or powering a complex workstation, this power supply has got you covered. Efficiency is...
Посмотреть детали