Switching Power Supply Cooling Fan

Switching power supply cooling fan

To improve the reliability of switching power supply operation, heat dissipation design is an essential and important link. The excessive temperature rise inside the switching power supply will lead to the failure of temperature sensitive semiconductor devices, electrolytic capacitors, and other components. When the temperature exceeds a certain value, the failure rate increases exponentially. Although there are many reasons for electronic device failures, high temperature is the most important factor (other factors in order of importance are vibration, humidity, and dust), and temperature has an impact on electronic devices of up to 60%. Statistical data shows that for every 2 ℃ increase in temperature of electronic components, the reliability decreases by 10%; The lifespan at a temperature rise of 50 ℃ is only 1/6 of that at a temperature rise of 25 ℃. In addition to electrical stress, temperature is the most important factor affecting the reliability of switching power supplies. For high-frequency switching power supplies with high-power heating devices, temperature is one of the most important factors affecting their reliability.

The thermal design of switching power supplies generally includes two aspects: firstly, how to control the heat output of the heat source; The second is how to dissipate the heat generated by the heat source and control the temperature rise of the switching power supply within the allowable range to ensure the reliability of the switching power supply.

In order to dissipate the heat of the heating device as soon as possible, the heat dissipation design of the switching power supply is generally considered from the following aspects: heat sink, heat dissipation fan, metal PCB, insulation and heat conduction plate, etc. In practical design, it is necessary to comprehensively apply the above methods to the design of power supplies based on the requirements of customers and the product itself, as well as the optimal cost-effectiveness ratio.

Q: What’s your tem of the delivery?
A: Our ordinary delivery term is FOB Shenzhen. We also accept EXW, CFR, CIF, DDP, DDU etc. We’ll offer you the shipping charges and you can choose the one which is the most convenient and effective for you.

Q: Which shipping way can you provide?

A: We can provide shipping by sea, by air and by express.

Q: Can you do our own packaging?

A: Yes, you just provide the package design and we will produce what you want. We also have the professional designer can help you do the packaging design.

Q: How many different types of products your company manufactures?

A: Now we have more than 1,000 products. We have a strong advantage of OEM, just give us the actual products or your idea that you want, we will manufacture for you.

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