Nachrichten
So lösen Sie das Problem der Auswahl des Leistungsmoduls
Autor： ZYG Leistungsmodul Time： 2022-12-20
It is not easy to select a power module. There are many difficulties to consider. How much do you know?
Magnetic beads, capacitors, diodes, resistors… all have similar inside stories, but people don’t pay much attention to them. There are various topologies of power modules, such as flyback, forward, push-pull, half-bridge, and full-bridge. Due to their different basic principles, each of them is mainly manifested in the advantages at the level of certain characteristic indicators.
The flyback power supply does not have a time period for charging and discharging the battery during the power switch period. That is because there is no time characteristic of the response characteristic, and the grain baud cannot be guaranteed to be very good, although it may not help much according to the energy storage capacitor , but the rationale is just a flaw.
Leakage inductance is also a big problem, but its advantages are simple power supply circuit, low cost, light weight, no need to add magnetic calibration windings, and a wider operating voltage range for typing. Because of this, its share of the total power supply sales market is about 7%.
The output voltage of the positive power supply has good transient operation characteristics and strong load capacity, but its disadvantages are also obvious. The large energy storage technology is used to filter the inductor and the freewheeling diode, which is large in size, and the back electromotive force of the primary coil of the transformer is high. .
The push-pull power supply has high transient response time, good working voltage and frequency characteristics. It is the most utilized power transformer of all topologies. No flux leakage, simple optocoupler circuit.
If the two forward converters are not completely symmetrical or balanced, the bias magnetism accumulated after many cycles will cause the magnetic core to enter a saturated state, resulting in excessive excitation current of the high-frequency transformer, and even damage the power switch tube.
The accumulative chainless power supply transformer has a large power and high working efficiency, the withstand voltage test value of the power switch tube is relatively low, and the primary coil of the transformer only needs to be wound once. The disadvantage is that the efficiency is low, there is a semiconductor area, and the consumption is large.
The above problems are all caused by the inherent advantages and disadvantages of its topology. Although people can use the power module as the black box of the aircraft, this is also a point that needs to be paid attention to when choosing a power supply.
Vorherige: Die Auswahl eines Leistungsmoduls und Vorsichtsmaßnahmen ist sehr wichtig
Nächste: The Importance of Quality Control in China DC-DC Converter Manufacturing
relevante Information
-
2023-10-22
Module Power Supply: Ensuring Reliable and Efficient Electrical Power Delivery
Introduction The demand for reliable and efficient electrical power delivery has never been higher. From consumer electronics to industrial machinery, virtually every device relies on a stable and uninterrupted power source. This is where module power supplies come into play. These compact, efficient, and reliable devices ensure the steady flow of electricity to various electronic systems, making them an indispensable component in modern-day power distribution networks. Understanding Module Power Supplies Module power supplies are electronic devices that convert electrical energy from one form to another to ensure the proper functioning of electronic devices. They serve as an interface between the main power supply and the target system by converting and regulating the input voltage to the desired output voltage level....
Einzelheiten anzeigen -
2023-6-4
The XXYY Series DC DC Converter is a high-performance electronic device that is widely used in various industrial applications to convert a direct current (DC) voltage from one level to another. This device is designed to provide a stable and reliable output voltage even under extreme conditions, making it an ideal choice for applications that require a high level of precision and accuracy. The XXYY Series DC DC Converter offers a wide range of input and output voltage options, making it suitable for a variety of applications. It is commonly used in telecommunications, industrial control, power supply, and military applications. This device is highly efficient and offers excellent regulation, which ensures that the output voltage remains stable even when there...
Einzelheiten anzeigen -
2023-8-8
High quality 120V AC to 12V DC Converter manufacture
Introduction: In today's modern world, electricity plays a pivotal role in powering various electronic devices and appliances. However, these devices often operate at different voltage levels, necessitating the use of converters to ensure compatibility. One such converter is the 120V AC to 12V DC converter. This article aims to provide a comprehensive understanding of the principles, functionality, and applications of this essential electrical device. Overview: The 120V AC to 12V DC converter, as the name suggests, is designed to convert alternating current (AC) with a voltage of 120 volts to direct current (DC) with a voltage of 12 volts. This conversion process is crucial for powering low-voltage devices that require a stable and reliable power source. The converter is often...
Einzelheiten anzeigen -
2023-4-18
Generating AC-DC Power with a Converter
Generating AC-DC power with a converter is a process that is used widely in the modern world. It is the process of converting electrical power from alternating current (AC) to direct current (DC) or vice versa. This conversion process is necessary in many applications, such as in power supplies for electronic devices, electric vehicles, and renewable energy systems. There are two types of converters that can be used in this process: AC-DC converters and DC-AC converters. AC-DC converters are used to convert AC power to DC power, while DC-AC converters are used to convert DC power to AC power. The process of converting AC power to DC power involves several stages. The first stage is rectification, where the AC power...
Einzelheiten anzeigen -
2023-7-12
The Evolution of Industrial AC-DC Converters: Advancements and Applications
Introduction Industrial AC-DC converters play a crucial role in converting alternating current (AC) power into direct current (DC) power. This conversion is essential for powering a wide range of industrial applications such as motor drives, power supplies, and renewable energy systems. Over the years, these converters have undergone significant advancements to meet the growing demands of the industrial sector. This article aims to explore the evolution of industrial AC-DC converters, highlighting the key advancements and their applications. Advancements in Industrial AC-DC Converters 1. Rectifier Circuits: Rectifier circuits are the fundamental building blocks of AC-DC converters. Initially, passive diode rectifiers were used, which were simple and cost-effective. However, these rectifiers suffered from poor power factor and low efficiency. To overcome these...
Einzelheiten anzeigen -
2023-12-18
Trusted and Efficient Modular Power Supply: 1000W for Optimal Performance
In today's digital age, where technology is advancing at a rapid pace, having a reliable and efficient power supply is crucial for optimal performance. One such power supply that stands out from the rest is the Trusted and Efficient Modular Power Supply, offering an impressive 1000W output to meet the demands of power-hungry devices. When it comes to power supplies, reliability is of utmost importance. The Trusted and Efficient Modular Power Supply has earned its reputation as a trusted brand among professionals and enthusiasts alike. With a track record of delivering stable and consistent power, it is the go-to choice for those who are serious about their system's performance. Efficiency is another key factor that sets this power supply apart...
Einzelheiten anzeigen