소식
AC-DC 전원 공급 장치 제조업체를 선택하는 시기와 AC-DC 전원 공급 장치를 선택하면 어떤 이점이 있습니까?
저자： ZYG 전원 모듈 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.
관련 정보
-
2023-7-8
Introducing the DM Series DC Power Supply
In today's technologically advanced world, the demand for efficient and reliable power supply solutions has never been higher. Whether it is for industrial applications, research laboratories, or educational institutions, having a high-quality DC power supply is essential. That is why we are proud to introduce the DM Series DC Power Supply. With its cutting-edge features and industry-leading performance, this power supply is set to revolutionize the way you power your devices. One of the standout features of the DM Series DC Power Supply is its versatility. It is designed to meet the needs of a wide range of applications, making it the perfect choice for professionals from various industries. Whether you are working on electronics, telecommunications, or even automotive projects,...
세부 정보보기 -
2022-11-18
전원 모듈 선택 방법 및 주의 사항, 각각 매우 중요합니다.
첨단 기술의 시대에 파워 모듈은 찾기 어렵지 않으며 많은 전기 장비가 이를 필요로 합니다. 너무나 평범한 아이템이지만 기계의 정상적인 작동은 전원 공급 장치와 많은 관련이 있기 때문에 실제로는 큰 역할을 합니다. 매우 중요하기 때문에 구매 및 사용에 더욱 주의를 기울여야 합니다. 다음 항목은 매우 중요합니다. 1. 브랜드에 집중 파워 모듈의 정상적인 사용을 보장하기 위해 브랜드 상인의 제품은 관련 생산 자격이 있고 제품 안전성이 훨씬 높기 때문에 구매할 때 신뢰할 수 있는 브랜드를 선택해야 합니다. 법적 자격없이 일부 전력 제품을 구입하면 ...
세부 정보보기 -
2023-11-10
DC to DC Power Supply Module: Efficient and Versatile Solution for Power Conversion
Introduction: In today's fast-paced world, where electronic devices are an integral part of our lives, the need for efficient and versatile power conversion solutions has become paramount. One such solution is the DC to DC power supply module. With its ability to convert one DC voltage level to another, this module serves as a vital component in a wide range of applications, including consumer electronics, automotive, telecommunications, and industrial systems. In this article, we will explore the features and benefits of this power conversion technology. Efficiency: Efficiency is a crucial factor when it comes to power conversion. The DC to DC power supply module boasts high efficiency levels, ensuring minimal energy loss during the conversion process. By efficiently transferring power...
세부 정보보기 -
2023-6-29
120V AC to 12V DC Converter: Power Conversion Made Easy
Introduction: In today's digital age, electronic devices have become an indispensable part of our lives. From smartphones to laptops, these devices rely on a stable power supply to function effectively. However, the power requirements for these devices can vary significantly. While some devices operate on 120V AC (alternating current) power supply, others require 12V DC (direct current) power for optimal performance. To bridge this gap and ensure seamless power conversion, the 120V AC to 12V DC converter has emerged as a reliable and efficient solution. In this article, we will explore the functionality, applications, and benefits of this converter. Functionality: The 120V AC to 12V DC converter is a power conversion device that converts alternating current (AC) into direct current...
세부 정보보기 -
2023-6-17
Car Outlet Converter: Power Up Your Electronics on the Go
When it comes to traveling, one of the biggest concerns for most people is staying connected. With so many electronics these days, from smartphones to laptops to tablets, it's important to have a reliable source of power to keep these devices charged up and ready to go. This is where a car outlet converter can come in handy. A car outlet converter is a device that allows you to convert the 12-volt DC power from your car's cigarette lighter socket into the 110-volt AC power that most electronics require. With a converter, you can plug in your phone charger, laptop charger, or any other device that needs to be charged or powered up while you're on the go. There are...
세부 정보보기 -
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...
세부 정보보기