Knowledge_Shenzhen City Kinri Energy Technology Co.,Ltd. Designer and Manufacturer of Power Supply, Battery Charger, Power Adapter, Switching Power Supply

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Shenzhen KINRI Energy Technology Co.,Ltd.

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· Precautions for selecting and using switching power supplies

Switching power supplies occupy an important position in modern electronic devices, and there are many aspects that need attention on how to choose and use them. This article introduces how to choose a switching power supply and the issues that need to be noted when using a switching power supply.Issues to pay attention to when choosing a switching power supply● The input voltage specifications must match the equipment requirements: ensure that the power supply matches the voltage requirements of the equipment to avoid equipment malfunction or damage.● We should choose models that match and exceed 30% of the rated output power to extend the service life of the power supply: choosing a slightly higher power supply can provide a longer service life and can cope with some high load situations.● The load characteristics need to be carefully considered. For motors, light bulbs, or capacitive loads with high current at startup, suitable power sources should be selected to...
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04-23
2024
· What is the difference between switching power supply and rail mode power supply？

Definition of Switching Power Supply and Rail Power SupplySwitching Power Supply Switching Power Supply is a type of power supply that first converts AC power into DC power, and then converts DC power into the required DC voltage and current output power. It adopts high-frequency switching power modulation technology, which has high output current, high efficiency, and low noise. It is widely used in electronic instruments, communication equipment, computer equipment, industrial automation control and other fields.240W Din Rail Switching Power SupplyA DIN rail power supply refers to a DC power supply that is fixed on a rail and converts AC power into a specific voltage and current through a power cord. It has the advantages of wide applicability, easy installation, stable operation, and high reliability, and is widely used in fields such as mechanical equipment, automation control, and processing equipment.The difference between switching power supply and rail mode power supply1. Func...
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04-22
2024
· The causes and solutions of power supply ripple and noise generation

The DC/DC power supply circuit has the advantages of low power consumption and high power, but at the same time, the conversion of the DC/DC circuit is completed through switching, which inevitably leads to the introduction of noise, specifically the ripple and noise of the power supply circuit.Compared with linear power supplies, switching power supplies (including AC/DC converters, DC/DC converters, AC/DC modules, and DC/DC modules) have the most prominent advantage of high conversion efficiency, generally reaching 80% to 85%, and up to 90% to 97%.Secondly, switching power supplies use high-frequency transformers instead of bulky power frequency transformers, which not only reduces weight but also reduces volume, making their application range increasingly wide.But the disadvantage of switch mode power supply is that its switching transistor operates in a high-frequency switching state, and the output ripple and noise voltage are relatively large, generally around 1% of the output v...
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04-20
2024
· What is the difference between single output and dual output power supplies?

There is a difference in the number of output channels between single output power supplies and dual output power supplies, which determines their flexibility and applicability in applications.Single output power supplySingle output channel: A single output power supply has only one output channel, which can only provide one voltage and current output.Limited applicability: Due to having only one output channel, a single output power supply is usually suitable for applications that only require a single voltage supply, such as many simple electronic devices or systems.Simple design: The design of a single output power supply is relatively simple and cost-effective.Application scenario: In some relatively simple applications, such as household electronic products, some small communication equipment, or laboratory experiments, a single output power supply can meet basic power needs.Dual output power supplyMultiple output channels: A dual output power supply has two or more independent o...
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04-19
2024
· Common malfunctions and causes of power modules

There are several common malfunctions and causes of power modules:Unable to start or no output voltage: It may be due to abnormal or damaged input power of the power module, such as high or low input voltage, short circuit of input power, etc; It may also be an internal fault in the power module, such as a main circuit component failure, control circuit failure, etc.Large fluctuation of output voltage: It may be caused by excessive load on the power module, sudden load changes, and other reasons that lead to unstable output voltage; It is also possible that the internal switch components of the power module are damaged, the filtering capacitor is aged, and other factors can cause output voltage fluctuations.Heat dissipation issue: When the power module works for a long time or the ambient temperature is high, it may cause poor heat dissipation, which can lead to overheating or overload of the power module.Overload protection triggered: When the load current exceeds the rated current o...
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04-19
2024

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