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What kind of manufacturer to choose for power module customization


1. It is suitable for the requirements of one's own scale. Some foreign brands are indeed of good quality, but the price is not acceptable to every user, and the delivery time is very long compared to domestic brands. For some large domestic power supply module suppliers, this problem is also encountered. If the model you ordered is not the main shipping model, the delivery time cannot be guaranteed. If you propose to customize a special power supply yourself, it is simply unthinkable for small and medium customers. Because small and medium-sized enterprises cannot choose a supply platform like Huawei and ZTE. It is very important to choose an enterprise that suits their own scale.

2. Look at the product line. For example, whether the module power supply can provide industrial products such as half brick, 1/4 brick, 1/8 brick, and 1/16 brick. The ability to customize products, whether it can provide a wealth of customized products, such as railway, electric power, and military customization experience is still quite important.

3. Communicate with the company's FAE engineer. Understand the company's implementation of design standards and design processes. Like the company’s product reliability design standards, derating standards, electrical safety standards, EMC standards, etc. Module new product design is a very rigorous process. A company that can promise you to deliver a new product within a week is definitely a non-rigorous company. The design details are very important, such as small overshoots and drops when the power supply is established, feedback The stability of the network under extreme conditions, these large companies have done very well, and few small companies will pay attention to these design details.

4. Look at the materials used. Turn on the power of a module and take a look at it yourself. It's more useful than listening to others. The quality and positioning of the power supply manufacturer can be seen from the materials used in the power supply products. The selection of power supply materials, such as capacitors, MOSFETs, diodes and other key materials, can determine the quality of the power supply. First-tier manufacturers like DCDC module power supplies, large-capacity MLCC capacitors are basically TDK, Murata, Yageo and other brands, tantalum basically chooses VISHAY, KEMET, AVX, etc., MOSFETs are generally IR, VISHAY, ST, Renesas, etc. Two-pole options are such as ONSEMI, ST, IR, Infineon, etc. Power is a very important device.

5. Look at the product certification. Certification not only tests the company's technology, but also reflects the company's strength. Because certification costs are not low, and factory inspections are not carried out regularly, small companies basically do not have any certification. In all certifications, the standards adopted are basically the same, for example, EN60950 is adopted for safety. But the gold content of each certification body is different, like 3C, TUV, etc., it is easier to pass, and the cost is lower. For example, UL certification is still very strict, factory inspections are also frequent and costly, so it is very important to see whether a company has UL certification.