Green environmental protection has become a directional trend in the development of various industries. How to achieve environmental protection and high efficiency and energy conservation has become a hot topic in the contemporary era. In modern electronic systems, data processing speed is getting faster and faster, data traffic and storage space are getting larger and larger, system stability and reliability are getting higher and higher, while electronic devices are decreasing in size, integration is increasing, and power consumption is increasing. Keep decreasing. In particular, modern handheld portable devices and remote control devices not only require high integration and small size of the electronic system, but also require low power consumption of the entire system, and the battery has a longer standby time in the same volume and power consumption. As electronic devices become more and more simple, and end products become smaller, integrated circuit manufacturers need to design more compact and compact packages. As the number of processors, memories, and other integrated circuits in the system continues to increase, more heat is generated, making thermal management very important in system design. These factors pose additional challenges for integrated circuit manufacturers and electronic design engineers. The innovation of power technology is necessary to promote the rapid development of power technology. Development trends and types of power technology 1.1 Development trend of power technology Modern power supplies began with silicon rectification technology in the late 1950s and early 1960s. Their development has experienced the era of rectification, inverter and frequency conversion, which has promoted the application of power technology in many emerging fields. The power semiconductor composite devices that combine high-frequency, high-voltage and high-current, represented by power MOSFETs and IGBTs, which were developed in the late 1980s and early 1990s, show that traditional power technology has entered the emerging era of modern power technology. The development trend of modern power technology: 1 Green and miniaturized. Low power consumption, low pollution, low current, high efficiency and high integration have become the mainstream of modern power technology. The development of power technology also depends on the development of electronic components and integrated circuits. 2 modular and intelligent. Power technology modularity includes modular power units and modular output units. The new switching power supply integrates its power switch tube and various output protection modules to further reduce the size of the switching power supply. The output voltage regulator circuit is modular, making the power supply more flexible, convenient and intelligent in practical applications. 3 digital, diversified. With the development and maturity of digital technology, modern power supplies are increasingly moving toward digital. The use of digital technology can reduce the high frequency harmonic interference and nonlinear distortion of the power supply, and at the same time facilitate the digital control of the CPU. Modern power supplies have good EMC characteristics, and the high-frequency harmonic power generated by them is gradually reduced, which reduces the "pollution" of the environment and enhances the anti-jamming performance of the power supply itself. 1.2 Power Type Classified by input-output status: AC-AC, AC-DC, DC-AC, DC-DC. Classified according to working status: linear power supply, switching power supply, diode regulated power supply. According to the same load connection voltage regulation method: series type regulated power supply, parallel type regulated power supply. Classified by output voltage adjustment method: fixed output power supply, adjustable power supply. With the development of power technology, power classification and definition are becoming more and more blurred. For example, the LA76810 TV receiver integrated audio amplifier AN5265 uses 9V DC power supply, while the TV receiver does not use 9V DC direct output or voltage regulator block 7809 output, but uses 7812 output and is regulated by 9V Zener diode and applied to the integrated circuit. powered by. [3] Wire Feeding Roller is part of the spraying system. Wire Feeding Roller,Welding Wire Feed Roller,Wire Feeder Roller,Wire Feed Drive Roller Shaoxing Tianlong Tin Materials Co.,Ltd. , https://www.tianlongspray.com