news
Quando scegliere un produttore di alimentatori AC-DC e quali sono i vantaggi di scegliere un alimentatore AC-DC
Author： ZYG Power Module Time： 2022-9-14
AC DC Power Module Filling Requirements
Potting and sealing of AC DC power modules is very important. This process involves not only the protection of AC and DC power modules (waterproof, moisture-proof, dust-proof, anti-corrosion, etc.), but also the thermal design of AC and DC power modules.
Power module potting materials are generally divided into three categories: epoxy resin, polyurethane, and silicone rubber
Due to the hardness of epoxy resin, it cannot be used for stress-sensitive and module packaging and SMT components, so it is basically eliminated in module power supplies. But epoxy resins are also used in cost-critical micropower power supplies due to their low cost. Some domestic bad power supply manufacturers also use this epoxy resin for AC and DC power supply modules, but due to stress problems, the failure rate of this power supply is very high, and buyers are very distressed.
At present, most of the power modules are sealed with molded silicone. For the convenience of operation, the ratio of 1:1 is usually adopted. When designing for AC and DC power modules, attention should be paid to their thermal conductivity. However, the adhesion is not very strong, so a substrate coating can be used to improve sealing.
Polyurethane has been used in China for a period of time, but due to its high hardness, inconvenient maintenance, and the price of silicone rubber, polyurethane is not cost-effective. There is basically no domestic application of it.
Special attention should be paid to thermal conductivity in relation to thermal design. Generally speaking, a thermal conductivity of 0.5w/M·K is defined as high thermal conductivity, and a thermal conductivity greater than 1 is defined as very high thermal conductivity.
The power module is such a highly integrated small and medium-sized switching power supply. In recent years, with the development trend of high and new technology, it has been widely used in industrial electrical, power supply system, instrumentation, urban rail, intelligent security, new energy technology, communication, automation technology and intelligent system industry.
Make sure to type the source type first
The power module can input AC current or AC current. Normally, the FH/DC power module selects AC current input, and the DC/DC power module selects AC input. The high-cubic FH-DC power module can also be used normally under the DC input working voltage standard.
Type in the operating voltage category to select
After confirming the input source, the input working voltage can refer to the manufacturer’s motor selection structure. The communication keys are basically 120V, 230V, 220V. Now FH/DC power modules usually consider 86~265VAC or 150~370VDC types, and 220V also consider 230V types, but the probability of application at 230V will be much worse, and the DC keys are basically 5V~76V.
Select the package type of the item
Product package types include single in-line SIP package, small and medium vertical bare board, dual in-line ultra-small DIP package and rail package. The bare board is composed of a PCB circuit board and various components. It is completely exposed and not very safe, but the cost is low.
DIP packaging is usually strongly recommended. Although it is expensive to lose, it has the characteristics of potting packaging, safety protection, good heat dissipation characteristics of heat pipes, anti-freezing, moisture-proof and stable characteristics. must be selected on a case-by-case basis.
Select the output power of the goods according to the load size
When selecting the output power of the power module, it is usually strongly recommended to reserve the capacity, and the output power of the application is between 30 and 90% of the actual output power. The capacity is large and there are noise problems when working at high frequencies.
informazioni rilevanti
-
2022-9-5
Se stai cercando un modulo di alimentazione affidabile e conveniente per i tuoi progetti di elettronica, non cercare oltre i moduli di alimentazione di piccole dimensioni realizzati in Cina. Questi moduli offrono una varietà di funzionalità e vantaggi, rendendoli un'ottima scelta per il tuo prossimo progetto. 1. Cosa sono i moduli di alimentazione di piccole dimensioni e perché sono una buona scelta per i tuoi progetti di elettronica? I moduli di alimentazione di piccole dimensioni sono un'ottima scelta per i tuoi progetti di elettronica per alcuni motivi. Innanzitutto, sono più piccoli e leggeri dei moduli di alimentazione tradizionali, il che li rende più facili da lavorare. Sono anche più efficienti, il che significa che possono funzionare a temperature più basse e più a lungo. Infine, sono più convenienti dei tradizionali moduli di alimentazione, il che li rende un...
Visualizza dettagli -
2023-4-20
Creating an AC-DC Power Supply: A Comprehensive Guide
An AC-DC power supply is a device that converts alternating current (AC) to direct current (DC). It is used in a wide range of electronic devices such as computers, televisions, and mobile phones. In this guide, we will provide you with a comprehensive guide on how to create your own AC-DC power supply. Step 1: Determine Your Requirements Before you start building your power supply, you need to determine your requirements. Ask yourself the following questions: - What voltage do you need? - What current do you need? - What is the input voltage? - What is the output voltage? Step 2: Choose a Transformer The transformer is an important component of the AC-DC power supply. It converts the incoming...
Visualizza dettagli -
2023-4-26
Industrial AC-DC Converter: Powering Your Equipment with Efficiency and Reliability
An industrial AC-DC converter is an essential component in many industrial applications that require efficient and reliable power conversion. These converters are commonly used in power supplies for a wide range of industrial equipment such as machinery, robotics, and automation systems.An AC-DC converter is a device that converts alternating current (AC) power into direct current (DC) power, which is necessary for powering electronic devices. The converter typically consists of a rectifier, which converts the AC power into a DC voltage, and a filter, which smooths out the DC voltage to provide a constant output.Industrial AC-DC converters are designed to operate in harsh environments, where temperature, humidity, and other factors may affect the performance of the device. These converters are built...
Visualizza dettagli -
2023-7-17
China HP Series supplier: The Ultimate AC DC Converter Solution
Introduction: HP Series is a revolutionary AC DC converter solution that provides unmatched efficiency, reliability, and versatility for various applications. Designed by a team of experts at our state-of-the-art facility, this cutting-edge converter solution is set to redefine power conversion technology. In this article, we will explore the features and benefits of the HP Series and delve into its impact on different industries. 1. Unparalleled Efficiency: The HP Series boasts exceptional efficiency levels, thanks to its advanced power conversion architecture. With a conversion efficiency of up to 98%, it ensures minimal power loss during the conversion process, resulting in significant energy savings. This efficiency makes it an ideal choice for industries striving to reduce their carbon footprint and operating costs....
Visualizza dettagli -
2023-7-28
Introducing the DC DC Converter EX Series: Powering Your Electronics Efficiently
In today's technologically advanced world, electronic devices have become an integral part of our daily lives. From smartphones to laptops, these devices require a stable and efficient power supply for optimal performance. To meet this demand, we are proud to introduce the DC DC Converter EX Series, a cutting-edge power solution designed to efficiently power your electronics. One of the key features of the DC DC Converter EX Series is its high efficiency. With advanced power conversion technology, these converters can convert the input voltage to the desired output voltage with minimal power loss. This efficiency not only ensures that your devices receive a stable power supply but also helps to extend the battery life of portable electronic devices. The...
Visualizza dettagli -
2023-5-2
AC-DC Converter Module: Efficient Power Conversion Solution
Introduction The AC-DC converter module is a circuit board that converts alternating current (AC) to direct current (DC) in a power supply system. It is an essential component for many electronic devices and systems that require a stable and regulated DC voltage. The AC-DC converter module is designed to be highly efficient, reliable, and cost-effective for use in a variety of applications. Efficient Power Conversion Solution The AC-DC converter module provides an efficient power conversion solution compared to traditional linear power supplies. Linear power supplies use a transformer to step down the voltage and then regulate the output voltage using a linear regulator. This method is inefficient and produces a lot of heat, resulting in a lower power efficiency. On...
Visualizza dettagli