news
About the importance, structure and how to choose the DC-DC power module?
Author： ZYG Power Module Time： 2022-4-7
With the development of the times, electronic products are more and more developed, DC-DC power modules are widely used in today’s society, and some electrical appliances used in daily life are also applied to them. Do you understand the importance and structure of DC-DC power modules? Know why you should choose a DC-DC power module? Today I will take you to find out.
The importance of DC-DC power module:
DC-DC power module is a compact, high quality regulated power supply products, using advanced manufacturing technology. Because the module power supply is simple to use, it has the advantages of convenient expansion and good maintainability when composing the system. Therefore, it is widely used in aerospace, communication power supply, automotive electronics, electronic equipment, power control and other fields. These module power supplies usually require a wide operating power range (36 V to 75 V) and high output power (can provide all-brick module power up to 700W), and the power density is very high, cooling design is a big problem.
For example, the half brick output power of 200W module power supply, its conversion efficiency is 89%, then 24.7W of electrical energy into heat, if there is no cooling measures, half brick module power supply may be damaged due to overheating. Therefore, in the design of high-power module power supply, appropriate heat dissipation design is more and more important.
Power structure of DC-DC power module:
The key components of the power structure of DC-DC power module are: pulse width modulator, optocoupler, VDMOS and Schottky diode.
The selection of power modules should be based on the following four points:
1, the use of mature power supply topology
The design of the power module is based on the mature power topology. These topologies have been tested over time and are mature and reliable.
2, high efficiency within the full load range
High efficiency means lower power loss and lower temperature rise, which can effectively improve reliability. In practical applications, the power supply will choose a certain degree of downscaling design, especially in today’s load IC power consumption is getting lower and lower, most of the time the power supply may work under light load conditions. Therefore, high efficiency over the entire load range is a key parameter for power system reliability, but it is often overlooked by power supply manufacturers.
3, limit temperature characteristics
The geographical area where the power module is applied is very wide and may have tropical climate and cold weather similar to Russian winter. Therefore, the minimum operating temperature range of DC-DC module is required to be -40 degrees to 85 degrees. The final temperature test is the most reliable way to verify this. The reliability of the power module, such as high temperature aging, high temperature and low temperature live operation performance test, high temperature and low temperature cycle impact test and long time high temperature and high humidity test, therefore, whether this test equipment has become the basis of judging whether the power manufacturer is a copycat manufacturer.
4, high isolation, low isolation capacitance
Medical products require extremely low leakage currents, while power electronics require as little parasitic capacitance as possible between primary and secondary. Both industries generally require the highest possible isolation voltage withstand and the lowest possible isolation capacitance to reduce the impact of common-mode interference on the system. For medical or power electronics applications, 1-2W DC-DCs are recommended to use a power module with an isolation capacitor less than 10pF, and a wide voltage product with a power module less than 150pF.
relevant information
-
2023-6-6
Custom Type Power Series: Enhancing Your Typography Skills
Typography plays a crucial role in graphic design and visual communication. It can make or break a design, conveying the intended message or confusing the viewer. Therefore, it's essential to have a solid understanding of typography principles and techniques. One way to improve your typography skills is by exploring custom typefaces. Custom typefaces, also known as bespoke or exclusive typefaces, are fonts that are designed for a specific brand, project, or purpose. They are unique and tailored to meet the needs and preferences of the client. Custom typefaces can enhance a design's aesthetic appeal, readability, and brand identity. In this article, we'll explore the benefits of using custom typefaces and how they can enhance your typography skills. 1. Uniqueness and...
View details -
2024-1-3
Exploring the AC/DC 5V Power Supply Module and Its Versatile Applications
The AC/DC 5V Power Supply Module is a crucial component in many electronic devices. It converts the alternating current (AC) from the power source into a direct current (DC) at a stable 5V output. This module plays a vital role in providing power to various electronic circuits and devices such as microcontrollers, sensors, and integrated circuits. Features and Specifications: The AC/DC 5V Power Supply Module comes with several features and specifications that make it highly efficient and reliable. Some of the noteworthy features include: 1. Input Voltage Range: The module is designed to accept a wide range of input voltages, typically ranging from 90V to 240V AC. This allows it to be used with different power sources worldwide. 2. Output...
View details -
2023-8-7
120V AC to 12V DC Converter: Efficiently Powering Your Devices with Ease
Introduction In this fast-paced digital era, we heavily rely on various electronic devices to fulfill our everyday tasks. From smartphones and laptops to gaming consoles and kitchen appliances, these devices have become an integral part of our lives. However, the majority of them require a direct current (DC) power supply to operate efficiently. This is where a 120V AC to 12V DC converter comes into play. In this article, we will explore the benefits and applications of this converter, highlighting how it efficiently powers your devices with ease. Understanding the Basics Let us start by understanding the basics of electrical power and the difference between alternating current (AC) and direct current (DC). AC is the standard power supplied by the...
View details -
2023-9-2
AC DC Power Supply Module: Efficient and Reliable Solution for Electrical Applications
Introduction Electricity is an essential part of our everyday lives. From charging our electronic devices to powering industrial machinery, we rely on a stable and efficient power supply to ensure smooth operations. One crucial component that plays a vital role in providing the required power is the AC DC power supply module. This article will delve into the various aspects of this module, highlighting its efficiency and reliability in electrical applications. Efficiency in Power Conversion The AC DC power supply module is designed to convert alternating current (AC) from the mains power supply into direct current (DC) to power electronic devices. One of its key advantages is its high efficiency in power conversion. With advancements in technology and design, modern...
View details -
2023-4-13
AC-DC Converter: Converting Alternating Current to Direct Current
An AC-DC converter is a device used to convert alternating current (AC) to direct current (DC). This is important because many electronic devices require DC to operate properly. The process of converting AC to DC involves a few basic steps. The first step is to rectify the AC voltage. This means that the negative portion of the AC waveform is inverted so that it becomes positive. This is done by using a rectifier, which is a device that allows current to flow in only one direction. There are two types of rectifiers: half-wave rectifiers and full-wave rectifiers. Half-wave rectifiers only allow current to flow during the positive half of the AC waveform, while full-wave rectifiers allow current to flow during...
View details -
2023-6-4
AC-DC Power Supply: Ensuring Reliable and Efficient Electrical Current Conversion
An AC-DC power supply is an electrical device that converts alternating current (AC) into direct current (DC). AC-DC power supplies are commonly used in a variety of applications, such as in electronic devices, telecommunications equipment, industrial automation, and many others. They are essential in ensuring that electrical devices receive a stable and reliable power source. The conversion of AC to DC is necessary because most electrical devices and equipment operate on DC. The AC power that is supplied from mains power sources is at a higher voltage and frequency than the DC required by electronic devices. AC-DC power supplies are designed to provide a stable DC voltage output that is suitable for powering electronic devices. A reliable AC-DC power supply...
View details