Requirements for custom-made power supply modules

At present, there are many kinds of power modules on the market, which contain different output voltages, and the power is not the same. Modular power supply can make the product put into use faster, and has many advantages that have been trusted by customers.Power module customizationThe design, production and inspection of the company are all very important links.

The power module is a power supply that can be directly mounted on the printed circuit board. ) And other digital or analog loads to provide power.

Generally speaking, this type of module is called a point-of-load (POL) power supply system or a point-of-use power supply system (PUPS). Due to the many advantages of the modular structure, various modules are widely used in high-performance telecommunication, network connection and data communication systems. Although the use of modules has many advantages, engineers often ignore reliability and measurement issues when designing power modules and even most on-board DC/DC converters. This article will discuss these problems in depth, and propose relevant solutions respectively.

Although the modular design has the above advantages, the modular design and even the on-board DC/DC converter design also have their own problems. Many people do not understand these problems or pay enough attention to them. The following are some of the issues:

Measurement of output noise;

The design of the magnetic system;

The breakdown phenomenon of the synchronous buck converter;

Reliability of printed circuit boards.

Each module customized for the power supply module needs to be strictly controlled to ensure its reliability, and conduct aging tests to eliminate unreliable products. The size of power modules produced by different suppliers is different, and new technologies invested in power modules must undergo rigorous testing and use mature technologies. The technology in the experiment cannot be applied to the product, so that the interests of customers cannot be guaranteed.