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Shenzhen KINRI Energy Technology Co.,Ltd.

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· Choosing an Electric Bicycle Charger should Match the Battery Type

The main cause of electric bicycle charging fire accidents is not only the quality of the battery itself, but also the quality of the electric bicycle charger. The Shandong Provincial Administration for Market Regulation reminds consumers to pay attention to the following when choosing and using electric bicycle chargers:Choose a charger that matches the type of electric bicycle battery. At present, there are two mainstream types of electric bicycle chargers: lead-acid battery chargers and lithium-ion battery chargers. As consumers, we should not blindly follow the promotion of merchants, and remember that mixing different types of chargers can affect the service life of batteries.Choose a charger based on the specifications of the electric bicycle battery. If the voltage of the electric bicycle battery is 48V, the output voltage of the corresponding charger is generally between 48V-59V. If a higher voltage charger is selected, it may cause overcharging of the battery, damage the batt...
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03-26
2024
· How to Choose an LED Power Supply?

With the continuous development of LED technology, the application of LED power supplies in lighting, display screens and other fields is becoming increasingly widespread. Choosing a suitable LED power supply is crucial for ensuring the normal operation and extending the lifespan of LED devices. This article will introduce several aspects to pay attention to when choosing an LED power supply.1. Voltage and current parametersWhen choosing an LED power supply, the first thing to consider is the voltage and current parameters. The specification book for LED beads will indicate the required voltage and current range, so it is necessary to choose a suitable power supply according to the specific LED bead model. At the same time, it is also necessary to consider whether the output voltage and current of the power supply meet the load requirements to ensure the normal operation of the LED equipment.2. Power factor and efficiencyPower factor and efficiency are important indicators for measuri...
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03-26
2024
· How to judge the quality of a switching power supply?

Switching power supply is a type of power supply that utilizes modern power electronics technology to control the time ratio of switching on and off, and maintain a stable output voltage. A good switching power supply should have the following characteristics:Kinri Energy's switching power supplyHigh efficiency: The conversion efficiency of switch mode power supplies is generally over 80%, and some can even reach over 90%, resulting in less energy waste and lower heat generation.Small output ripple: The output ripple of a switching power supply is generally within a few tens of mV, and some can even reach a few mV, so the output voltage is stable and suitable for situations with high power requirements.Wide input voltage range: The input voltage range of a switching power supply is generally between 100-240V, and some can even reach 90-264V, making it suitable for a wide range of applications and can adapt to different power grid environments.High output current: The output current of...
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03-26
2024
· An article to help you understand what EMI is?

What is EMI?EMI, also known as electromagnetic interference, refers to any electromagnetic phenomenon that may cause a decrease in electronic device performance or have a negative impact. EMI can propagate in various ways, such as electromagnetic waves, wires, and power lines. In the modern society with dense electronic devices, EMI has become an issue that cannot be ignored.The sources of EMI can be divided into two categories: natural interference sources and human interference sources. Natural interference sources mainly include lightning, static electricity, and nuclear radiation; Human interference sources include various electronic devices, power systems, and communication systems. The electromagnetic waves generated by these interference sources can interfere with the normal operation of electronic devices, and may even lead to serious consequences such as equipment damage or data loss.How to avoid EMI?To avoid the impact of EMI on electronic devices, the following aspects can...
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03-26
2024
· Common Types of Protection for Switch Mode Power Supplies

Switching power supplies, as a type of power conversion device, are widely used in various electronic devices. To ensure the stable operation and extend the service life of switch mode power supplies, various protective measures are usually taken. The following will provide a detailed introduction to common types of protection for switch mode power supplies.Overcurrent protectionOvercurrent protection is one of the most basic and critical protective measures in switching power supplies. When the current exceeds the set value, overcurrent protection will quickly cut off the power supply to prevent damage to internal components of the power supply caused by excessive current. This protection is usually achieved through current detection circuits and fast responsive switching components.Overvoltage protectionOvervoltage protection is used to prevent output voltage from being too high, which may cause damage to the load equipment. When the output voltage exceeds the preset safety value, t...
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03-26
2024

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