ข่าว
เมื่อใดควรเลือกผู้ผลิตแหล่งจ่ายไฟ AC-DC และข้อดีของการเลือกแหล่งจ่ายไฟ AC-DC คืออะไร
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.
ก่อนหน้า: วิธีปรับแต่งแหล่งจ่ายไฟ AC-DC ของจีนให้ตรงกับความต้องการเฉพาะของคุณ
ต่อไป: วิธีเลือกโรงงาน DC-DC Converter วิธีเลือก DC-DC Converter คุณภาพสูง
ข้อมูลที่เกี่ยวข้อง
-
2023-8-6
High quality AC DC Power Supply SM Series: Unleashing Reliable and Efficient Power Solutions
Introduction In today's fast-paced and technologically advanced world, the need for a reliable and efficient power supply cannot be overstated. Whether it is powering our homes, offices, or industrial equipment, a stable power source is essential. That is where the AC DC Power Supply SM Series comes in. With its cutting-edge technology and unparalleled performance, it is revolutionizing the way we power our devices. Reliable Power Solutions The AC DC Power Supply SM Series is designed to provide a reliable and uninterrupted power supply. It is built with high-quality components that ensure stable and consistent power delivery, eliminating the risk of voltage spikes or surges that could damage sensitive equipment. The power supply's robust design also makes it resistant to...
ดูรายละเอียด -
2023-10-13
1000W Modular Power Supply: The Ultimate Solution for Efficient and Customizable Energy Delivery
Introduction Having a reliable and efficient power supply is crucial. Whether you are a gaming enthusiast, a content creator, or simply a power-hungry user, a 1000W modular power supply is the ultimate solution for efficient and customizable energy delivery. This article will delve into the features and benefits of a 1000W modular power supply, explaining why it is the best choice for your power needs. Efficiency and Energy Savings One of the key advantages of a 1000W modular power supply is its high efficiency. Modular power supplies are designed to deliver power only to the components that require it, eliminating unnecessary power consumption. This targeted approach ensures that energy is not wasted, leading to significant energy savings. Furthermore, modular power...
ดูรายละเอียด -
2023-8-28
ZP Series AC DC Converter: The Perfect Solution for Your Power Conversion Needs
Introduction Where electricity is the lifeline of almost every industry, having a reliable and efficient power conversion solution is crucial. Whether it's for industrial processes, telecommunications, or even renewable energy systems, the need for converting alternating current (AC) to direct current (DC) or vice versa is indispensable. This is where the ZP Series AC DC Converter comes into play, offering a perfect solution for all your power conversion needs. Overview of the ZP Series AC DC Converter The ZP Series AC DC Converter is a state-of-the-art power conversion device manufactured by a leading company in the field of electrical engineering. It is designed to convert AC power to DC power or DC power to AC power, depending on the requirements...
ดูรายละเอียด -
2023-5-7
AC-DC Converter Module: Converting Alternating Current to Direct Current
Introduction An AC-DC converter module, also known as a rectifier, is an electronic device used to convert alternating current (AC) to direct current (DC). This module is used in a wide range of applications where DC power is required, such as in electronic devices, power supplies, and motor control systems. Working Principle The AC-DC converter module works by using a diode bridge circuit to convert the AC input voltage to a pulsating DC voltage. A diode is a semiconductor device that allows current to flow in only one direction. The diode bridge circuit consists of four diodes arranged in a bridge configuration, which allows the AC voltage to pass through the circuit and produce a pulsating DC voltage at the...
ดูรายละเอียด -
2023-4-18
AC-DC Converter: Converting Alternating Current to Direct Current
An AC-DC converter is a device that is used to convert alternating current (AC) to direct current (DC). This conversion is required in many electronic devices that use DC power, such as computers, mobile phones, and televisions. In this article, we will discuss the basics of AC-DC converters, how they work, and their different types. The basic function of an AC-DC converter is to change the direction of the current flow from AC to DC. This is done by using a rectifier circuit, which consists of diodes that allow the flow of current in only one direction. The incoming AC signal is first converted to pulsating DC signal, which is then smoothed out by using a capacitor. The output of...
ดูรายละเอียด -
2023-6-16
SP Series AC DC Converter: Efficient Power Conversion for Your Devices
As technology advances, the need for efficient power conversion becomes increasingly important. The SP Series AC DC Converter is one solution that addresses this need. This device provides efficient power conversion for a variety of devices, making it an essential component for many applications. The SP Series AC DC Converter is designed to provide a reliable and efficient power source for electronic devices. It is equipped with a high-efficiency power conversion system that converts AC power to DC power with minimal loss. This results in increased energy savings and longer device lifespan. One of the key features of the SP Series AC DC Converter is its compact size and lightweight design. This makes it ideal for use in a variety...
ดูรายละเอียด