When it comes to switching power supply, it is a relatively linear power supply that controls the switching time ratio and maintains a stable output voltage by using advanced power electronics technology. It usually consists of a pulse width modulation (PWM) control IC and a MOSFET. With the development and innovation of power electronics technology, switching power supply technology continues to innovate. At present, switching power supplies are widely used in almost all electronic devices due to their small size, light weight and high efficiency. It is an indispensable power supply method for the rapid development of the electronic information industry.
Development trend of switching power supply
The development trend of switching power supply has been inseparable from small and thin, and in the development trend in recent years, it has begun to develop in the direction of low noise and low energy consumption. Various switching power supply research and development teams are constantly expanding the market. It solves the technical and process problems that appear, and the solution to environmental protection problems has also been welcomed by various markets, saving electricity and avoiding the discharge of excessive waste gas. In fact, the power supply is not a device that is easily damaged. In use, due to the realization of high efficiency, low energy consumption, low noise, and anti-interference ability, and the joint production between manufacturers, there are already more and more products, which are opened by technology. market.
Green switching power supply products will be widely used. Green switching power supply products specifically refer to significant energy saving and no pollution to the electricity network. The nodes and environmental protection requirements of the 21st century will enable a variety of intelligent switching power supply technologies to be widely used, and the power supply structure will develop from centralized to distributed.
Small high-frequency switching power supply and its technology have become the mainstream of modern power supply systems. Miniaturization and weight reduction of power sources are particularly important for portable electronic devices (such as mobile phones, digital cameras, etc.). Therefore, improving the power density and power conversion efficiency of switching power supplies, making them miniaturized and lightweight, is the goal that people are constantly striving for. As one of the main technical means of power miniaturization, high frequency and soft switching technology has become one of the hotspots in the international power electronics field in recent years.
The digital power supply combines the high efficiency of the switching power supply with the intelligent control of the digital chip, and uses appropriate algorithms to adjust the voltage and current. Compared with analog power supply, digital power supply can perform accurate digital correction on current detection error, and voltage detection is more accurate; it can realize fast and flexible control design.
In order to improve the reliability of the system, it has become a trend for complete machine manufacturers to cooperate with component manufacturers to develop "customer-specific" power modules. That is to say, almost all the hardware of a whole machine is installed in a module in the form of chips, so that there is no traditional lead connection between a large number of components, and the parasitic parameters are minimized, so that the power components and power The electrical stress on the device is minimized to achieve the purpose of improving the reliability of the system equipment.
The R&D team of large enterprises is quite guaranteed. During the R&D process, they constantly solve this problem and understand the real needs of Xiaobai users, so that the efficiency of the product is broader. The R&D team, technical team, and production team in large enterprises are closely coordinated. Market research also requires efforts to measure what kind of products are more suitable for the market and the trend of market development, and give feedback to the R&D department. The products designed by the R&D department, It is delivered to the production department for manufacturing, and then tested by the technical department. Not only the modifications, but the products that finally enter the market have basically undergone hundreds or even thousands of improvements, so there will be more improvements for users. good effect.
Among small and medium-sized enterprises, the lack of R&D capability is a relatively big problem at present, and R&D defects are the biggest cause of product defects. Market products affect corporate reputation. The trend of the product market of small and medium-sized enterprises is often closely followed by the trend of products of large enterprises. Among the switching power supply products, most products have been tested, and small and medium-sized enterprises will follow closely, and it is difficult to develop counterfeiting. It will gain a firm foothold in the market. For enterprises, if they want to develop, they still need R&D strength.
my country's demand for electronic products is relatively large, and the young generation who pursue fashion have relatively high demand and requirements for products. As electronic products become thinner and thinner, the requirements for low power consumption are becoming more and more strict. , the power supply in my country's market has also begun to become smaller and smaller. It is undeniable that the noise of computers and other equipment is getting smaller and smaller, and there is a certain pursuit for the noise of power supply operation. Therefore, for R&D enterprises, it should be regarded as the focus of R&D, and high frequency and low noise should be developed at the same time. , After solving a large number of technical problems, the product is technically practical and energy-saving, and it will be more favored in the market.
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