noticias
¿Cómo elegir el módulo de alimentación DC-DC de China? ¿Por qué elegir un módulo de potencia DC-DC?
Autor： Módulo de potencia 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.
How to choose the right power module
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.
Anterior: Cómo elegir un proveedor confiable de energía DC-DC de China
Próximo: Cómo encontrar un fabricante confiable de fuentes de alimentación
informacion relevante
-
2023-7-23
Bidirectional DC-DC Converter: An Innovative Solution for Efficient Power Conversion
Introduction: With the increasing demand for energy efficiency and the integration of renewable energy sources into the power grid, bidirectional DC-DC converters have emerged as an innovative solution for efficient power conversion. These converters play a crucial role in a wide range of applications, including electric vehicles, energy storage systems, and renewable power generation. Understanding Bidirectional DC-DC Converters: A bidirectional DC-DC converter is a device that allows power to flow bidirectionally between two DC sources or storage systems. It enables efficient power conversion by adjusting the voltage levels and converting power between different systems. By effectively managing the power flow, bidirectional DC-DC converters enable the integration of various energy sources and storage systems into a unified power system. Key Features...
Ver detalles -
2023-7-18
The demand for efficient and reliable power conversion solutions has never been greater. In today's fast-paced world, where technology plays a crucial role in our daily lives, it is essential to have power converters that can keep up with the increasing power demands of electronic devices. That's where the SP Series AC DC Converter comes in. The SP Series AC DC Converter is a cutting-edge power conversion solution that offers the perfect balance of efficiency and reliability. Designed with the latest technological advancements, this converter is capable of delivering high-quality power with minimal energy loss, making it an ideal choice for a wide range of applications. One of the standout features of the SP Series AC DC Converter is its...
Ver detalles -
2023-6-15
High-Efficiency AC DC Power Supply with PFC Technology
In today's world, electronic devices have become essential for our daily lives. From smartphones and laptops to home appliances and industrial machinery, we rely on these devices to keep us connected, entertained, and productive. However, these devices require a significant amount of power to operate, which can lead to higher energy bills and increased energy consumption. This is where high-efficiency AC DC power supplies with PFC technology come in. A high-efficiency AC DC power supply with PFC (Power Factor Correction) technology is a type of power supply that can convert the alternating current (AC) from the main power supply into direct current (DC) that can be used by electronic devices. The PFC technology allows the power supply to maintain a...
Ver detalles -
2023-6-11
Unleashing the Power of LEDs: A Comprehensive Guide to the LED Power Series
The LED Power Series is a group of highly efficient LED lights that are designed to provide maximum lighting output while consuming a minimal amount of energy. These lights are a great alternative to traditional incandescent lighting and can be used for a wide range of applications, including residential, commercial, and industrial use. LEDs are a type of solid-state lighting that uses semiconductors to emit light. Unlike traditional incandescent bulbs that produce light by heating a filament, LEDs use a tiny amount of electricity to excite electrons in a semiconductor material, which then emit photons of light. This process is incredibly efficient and produces very little heat, making LEDs much more energy-efficient than incandescent bulbs. The LED Power Series is...
Ver detalles -
2023-6-2
China AC DC Converter SPM Series manufacture
The AC DC Converter SPM Series is a power supply device that is able to convert alternating current (AC) into direct current (DC). This series of converters is produced by one of the leading companies in the field of power electronics, Mitsubishi Electric. The AC DC Converter SPM Series is designed to meet the demands of various industrial applications. Its wide input voltage range (85V to 264V) allows it to be used in a variety of settings, while its compact size and high efficiency make it an ideal choice for space-constrained installations. One of the key features of the SPM Series is its high reliability. This is achieved through the use of advanced technology, such as a built-in power factor...
Ver detalles -
2023-9-22
Unleash the Power of Your PC with a Modular Power Supply
In the ever-evolving world of technology, computers have become an essential part of our lives. Whether it is for work, entertainment, or communication, we rely on our PCs to perform various tasks efficiently and seamlessly. To ensure that our computers function optimally, it is crucial to have a reliable power supply. One such power supply that has gained popularity in recent years is the modular power supply. But what exactly is a modular power supply, and why is it worth considering? A modular power supply is a type of computer power supply that allows users to detach and attach power cables according to their specific needs. Unlike traditional power supplies, which have a fixed set of cables, a modular power...
Ver detalles