albisteak
Garrantziari, egiturari eta nola aukeratu DC-DC potentzia modulua?
Egilea: 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.
Aurrekoa: Nola aukeratu kalitatezko sakea eta potentzia-moduluaren fabrikatzaile fidagarriak?
Hurrengoa: Zein da moduluaren potentzia modua
informazio garrantzitsua
-
2024-3-5
AC and DC power modules: stable, efficient and reliable energy heart
In modern electronic equipment, power modules play a vital role. As a senior technology enthusiast, I have an in-depth understanding and strict requirements for power modules. Today, I would like to share with you an AC/DC power module that I am particularly satisfied with recently. With its stable, efficient, and reliable characteristics, it has become an indispensable energy heart in many of my electronic devices. ensure continuous operation of equipment For any electronic device, a stable power supply is crucial. This AC and DC power module uses advanced power management technology and high-quality electronic components to ensure the stability and reliability of the power output. During use, I never encountered any problems with power fluctuations or interruptions, which gave me...
Ikusi xehetasunak -
2023-8-30
Introduction: The AC DC Power Supply Module is an essential component in many electronic devices. It plays a crucial role in converting alternating current (AC) to direct current (DC) for various applications. This article will delve into the details of this module, its functions, features, and applications. Functions: The primary function of the AC DC Power Supply Module is to convert the incoming AC voltage to a DC voltage suitable for electronic devices. It accomplishes this through a series of processes, including rectification, filtering, and regulation. The module ensures that the DC output voltage remains stable and within the desired range regardless of fluctuations in the AC input. Features: 1. High efficiency: The AC DC Power Supply Module is designed...
Ikusi xehetasunak -
2023-5-22
Efficient AC-DC Converter for Your Car: Power Up Your Devices on the Go
An efficient AC-DC converter for your car is a must-have device for anyone who frequently travels by car and needs to power up their devices on the go. With the increasing use of smartphones, tablets, laptops, and other electronic devices, it has become essential to have a reliable and efficient power source in your car. An AC-DC converter is a device that converts the alternating current (AC) from your car's battery to direct current (DC) that can be used to power up your devices. It is a small, portable device that can be plugged into your car's cigarette lighter socket or any other 12V power socket. There are many benefits to using an efficient AC-DC converter in your car. Firstly,...
Ikusi xehetasunak -
2023-7-15
China AC-DC Power Supply wholesale: Providing Reliable and Efficient Electrical Conversion
Introduction In today's modern world, electrical power is essential for a wide range of applications, from powering our homes and offices to running complex industrial machinery. However, the electricity that is supplied to us is in the form of alternating current (AC), which is not always compatible with the devices we use. This is where AC-DC power supplies come into play. These power supplies play a crucial role in converting AC power into direct current (DC) power, making it suitable for use in various electronic devices. In this article, we will explore the importance of AC-DC power supplies and how they provide reliable and efficient electrical conversion. Understanding AC and DC Power To understand the significance of AC-DC power supplies,...
Ikusi xehetasunak -
2023-4-19
Building a 120V AC Power Supply for 3V DC Output
Introduction: In this tutorial, we will learn how to build a 120V AC power supply that outputs 3V DC. This is a simple project that can be completed by anyone with basic knowledge of electronics. The power supply can be used to power small electronic projects, such as LED lights or small motors. Let\'s get started! Materials Required: - 120V AC power source - Transformer (120V AC to 3V AC) - Bridge rectifier (1N4007) - Capacitor (1000uF, 16V) - Voltage regulator (LM7805) - Heat sink - Resistor (220 ohm) - LED - Breadboard - Jumper wires Instructions: Step 1: Connect the Transformer Connect the primary side of the transformer to the 120V AC power source. The secondary side of the...
Ikusi xehetasunak -
2023-7-5
Exploring the Electric Power Series: A Journey into the World of Electricity
Electricity is a fundamental part of our everyday lives, powering our homes, businesses, and even our modes of transportation. It is a marvel of modern science and engineering that has revolutionized the way we live. In this article, we will embark on a journey into the world of electricity, exploring the electric power series and its significance in our society. The electric power series refers to the sequence of steps involved in the generation, transmission, and distribution of electricity. It begins with the generation of electricity, which typically takes place in power plants. There are various methods of generating electricity, including burning fossil fuels, such as coal or natural gas, or harnessing renewable sources, such as solar or wind energy....
Ikusi xehetasunak