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Shenzhen KINRI Energy Technology Co.,Ltd.

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· Do you know what are the common types of switch mode power supplies?

A switching power supply is a type of power supply that controls the flow of current through switching elements (usually transistors). According to different working principles and topological structures, switching power supplies can be divided into several different types. The following are some common types of switching power supplies:Switching mode power supplyPulse Width Modulation (PWM): Adjusting the output voltage by changing the on/off time of the switch to maintain a stable output. Suitable for most applications, providing efficient and compact solutions such as computer power supplies, TV power supplies, etc.Pulse Frequency Modulation (PFM): Adjusting the output voltage by changing the operating frequency of the switch, usually used under light load conditions. It can improve efficiency and is suitable for scenarios that require a large range of load changes, such as mobile devices, Laptop adapter.Linear mode power supplyUse linear components (such as transistors) to adjust...
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03-27
2024
· Operation Control Conditions of Power Supply Cooling Fan

The cooling fan in the power supply is designed to help dissipate the heat generated inside the power supply and maintain its normal operating temperature. Therefore, controlling the operation of the cooling fan is very important. Next, let's explore the control conditions for the operation of the cooling fan.The working temperature of the supplierFirstly, we need to understand the operating temperature of the power supply. When the temperature of the power supply is too high, it can affect its normal operation and even lead to equipment failure. Therefore, the primary condition for controlling the operation of the fan is to monitor the temperature of the power supply. Once the temperature exceeds the preset safety range, the fan should start running to reduce the temperature.Power supply loadSecondly, the load of the power supply is also an important control condition. When the load of the power supply increases, the heat generated will also increase accordingly. To ensure that the p...
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03-27
2024
· Why should we choose a switch mode power supply with PFC (Power Factor Correction) function?

In modern power systems, Power Factor Correction (PFC) has become one of the important factors that cannot be ignored in power supply design. As a core component of electronic devices, the power factor of switch mode power supplies is directly related to the stability, energy efficiency, and environmental impact of the power grid. Therefore, choosing a switch mode power supply with PFC has become a fundamental requirement in power supply design. This article will delve into why switch mode power supplies require designs with PFC, as well as the advantages and impacts of using PFC.The advantages of PFC lie in the following aspects:Firstly, PFC can improve the power factor of the power system, making it more efficient and reducing energy waste. This is very important for businesses and household users, as they can save on electricity bills and also help reduce the impact on the environment.Secondly, PFC can reduce harmonic interference. Harmonic interference can lead to a decrease in th...
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03-27
2024
· What is the minimum load requirement and how is it reflected in the specifications?

ConceptThe minimum load requirement refers to the minimum load required for a device or system to operate normally and provide expected performance. The minimum load requirements may vary among different devices and systems, so they need to be clearly stated in the specifications.Firstly, the minimum load requirement should be clearly indicated in the "Technical Specifications" or "Performance Parameters" section of the specification sheet. To ensure clarity, concise and concise text descriptions should be used, and relevant units and measurement methods should be provided as much as possible. For example, if the minimum load requirement of a device is 500W, it should be marked in the specification as "Minimum load requirement: 500W (DC)".Secondly, for some complex devices and systems, the minimum load requirement may not be just a single value, but a range or a set of conditions. In this case, these requirements should be detailed in the specification sheet so that customers or users...
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03-27
2024
· How is the efficiency comparison between forward switching power supplies and flyback switching power supplies?

In modern electronic devices, switch mode power supplies play a crucial role as key components for energy conversion. Forward switching power supplies and flyback switching power supplies are two common topology structures that exhibit their respective advantages in different application scenarios.Forward Switching Power SupplyFlyback Switching Power SupplyForward switching power supplies are usually suitable for applications with high power and high output voltage. For example, in industrial equipment, server power supplies, and other situations that require stable high voltage output. The forward switching power supply has high efficiency, can provide larger output power, and has good stability in output voltage.Taking PLC (Programmable Logic Controller) in industrial automation as an example, forward switching power supply can provide stable power support. PLC usually requires reliable high-voltage power supply to ensure the normal operation of the system. The forward switching pow...
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03-27
2024

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