Power module, also called module power supply, is an electronic product that provides working current for electronic products. Many unfamiliar people often confuse it with current backup power, lithium batteries, or mobile power. But they are two different concepts. The module power supply does not have the energy storage module, does not provide the power storage function. Power supply is a kind of electronic product that provides working current for electronic equipment, and also bears the functions of variable voltage, isolation and filtering. In short, the transformation of voltage and current!
At present, the development of power module is relatively mature. The main development environment is as follows:
1. Policy environment. Module power concentrated electronic power technology, small intelligent control theory, electronic compatibility design, electric magnetic components design, thermal design, packaging design, and technology in a rest, is to ensure information security, electronic products and stable operation, the basis of the industrial automation process, get more than many national policy and industry policy support. Module power supply relative to the traditional power supply products, can apply to all kinds of bad working environment, and the characteristics of easy to use, easy to maintain, widely used in railway, electric power, communications, aerospace, automobile, shipbuilding, electronic information, new energy and industrial control, fire control, instrumentation, medical, transportation vehicle, etc. And the application fields of electronic information industry, aerospace and new energy are the industries that national plans give priority to encourage development and are supported by national policies. Especially in high reliability, high technology and other electronic fields play an irreplaceable important role. Play a very important role in the whole industrial automation development!
2. Standard environment. The standard is indispensable for the rapid development of an industry. The power module also has specific technical requirements to improve the quality of the power module! The power of the current international and domestic industry developed a number of standards, the main provisions of the power supply module manufacturing technical requirements, experiment method, testing and packaging specifications, and other special technical requirements in order to improve the reliability of the product. The main standard of "EN 50155" is the module power supply to the railway industry. In the communication industry, it is mainly to meet the technical standard of "EN 55022"; In the power industry module power supply, the main standard is to meet "EN 62040"; In the medical industry module power supply, the main standard is to meet "EN 60601".
3. Technical environment. From the current technology development of module power supply products, the upstream industry technology is constantly changing. Such as electronics, new technology, nanotechnology application progress, and the use of new materials, with sophisticated equipment and various new requirements of users, modules, power supply will continue to miniaturization, function modular, systematic and chip in the direction of development, mainly reflected in the high performance, high integration, high precision, high reliability and low power consumption and high radiation direction, at the same time as the fierce competition in the industry, the cost of the product also will go into a little to get control, materials used in more environmental protection, durable, safety. Especially in Europe and America market at present, the power module product requirements continuously improve, for starting behind Europe and the United States, China, we need continuous improvement of product design, using more advanced production and cost control, have a chance to win a certain market advantage!
4. Environmental protection technology environment. With the extensive application and scrap of electronic products, many electronic products have had a certain impact on the environment or human body. So now European and American countries are very strict with electronic products. Can not contain the common poisonous object, the type is more and more, the requirement of the content is higher and higher. The terms and conditions of product performance are also included in terms of pollution limit, recovery rate and energy saving. For example, the European Union launched the IS014000 environmental management system, requiring the import of products from production to manufacturing, sales, use and final processing to meet environmental standards. There are also American "UL" and" green cross ", Canada "ECP" and so on. To this end, they also developed strict product quarantine, inspection system.