With the rapid rise of my country's economy, various high-tech and high-tech equipment have emerged in an endless stream, and the communication power industry has achieved rapid development, as has the communication high-frequency inverter power supply. Railway communication power supply is an indispensable component of the railway communication system. The quality of the power supply system and the level of operating efficiency have an important impact on the communication quality of railways, aviation, power supply bureaus, power stations, etc.
This article elaborates on the development of high-frequency pure sine wave inverter power supply technology based on the composition and characteristics of the high-frequency pure sine wave inverter power supply technology system.
High-frequency pure sine wave inverter power supply has been widely used in the DC system of intelligent substations due to its reliable performance, small size, high efficiency and other advantages, providing guarantee for the safe and reliable operation of substations.
Before there are new breakthroughs in semiconductor devices and magnetic materials, major technological progress may be difficult to achieve, and the focus of technological innovation will be on how to improve efficiency and reduce weight.
Therefore, process technology will also occupy an increasingly high position in power supply manufacturing. In addition, the application of digital control integrated circuits is also a direction for the development of switching power supplies in the future, which will depend on the further improvement of DSP operating speed and anti-interference technology.
The development of high-frequency pure sine wave inverter power supply technology in the communication industry The development of high-frequency power supply technology for communication can basically be reflected in several aspects: standard configurations such as overvoltage protection, overtemperature protection, and overload protection.
Digital control
The simple application of digitalization is mainly to protect and monitor circuits, as well as communication with the system. It has been widely used in communication power supply systems. It can replace many analog circuits to complete the start-up of the power supply, over- and under-voltage protection of input and output, overcurrent and short-circuit protection of output, and overheating protection. Through specific interface circuits, it can also complete communication and display with the system.
More advanced applications of digitalization include not only realizing perfect protection and monitoring functions, but also outputting PWM waves, controlling power switching devices through drive circuits, and realizing closed-loop control functions.
Magnetic integration
With the increase of switching frequency, the size of the switching converter is reduced, and the power density is greatly improved, but the switching loss will increase, and more magnetic devices will be used, thus occupying more space.
Foreign research on magnetic component integration technology is relatively mature, and some manufacturers have applied this technology.
The conventional magnetic component design method is extremely cumbersome and needs to be considered from different angles, such as the selection of the size of the core, the determination of the material and winding, and the evaluation of iron loss and copper loss.
Manufacturing process
The manufacturing process of high-frequency switching power supply for communication is quite complicated, and directly affects the electrical function, electromagnetic compatibility and reliability of the power supply system, and reliability is the primary indicator of communication power supply.
The complete detection means, complete process monitoring points and anti-static measures in the production and manufacturing process of communication power supply have largely continued the best design performance of the product, and the widespread use of SMD patch devices will greatly improve the reliability of welding.
