Nowadays, the development of electronic information technology has entered the fast lane, and at the same time, the quality requirements for power products are getting higher and higher. As China is a big energy-consuming country, the state pays special attention to the development and production of energy-saving and environmental protection products.
At present, large-scale power supply enterprises in China are mainly divided into three types: assembly enterprises, Sino-foreign joint ventures and independent research and development enterprises. The imported parts of assembly enterprises are assembled in China and sold directly to foreign markets. Their products are of good quality and high cost, but their adaptability to the domestic market is poor. Sino-foreign joint ventures adopt foreign advanced technology, and their products have a high reputation in the domestic market; Independent research and development enterprises can produce advanced series of power products, which can not only meet the needs of various electronic equipment, but also be widely used in aerospace, new energy and other fields.
In the past, the power supply with high energy consumption and low quality will be gradually eliminated by the market, and replaced by high-efficiency and energy-saving power supply products with excellent quality, which makes the application of high-efficiency and energy-saving power supply in electronic products develop rapidly.
Based on the needs of the development of reality, the future development trend of China’s power supply industry (including electronic transformers) mainly shows the following four characteristics;
Energy saving and environmental protection-Energy conversion efficiency is an important index to measure energy saving, that is, the ratio of output to input power. The higher the conversion efficiency, the less energy loss. To improve the conversion efficiency of power supply, it is necessary to improve the power factor by controlling the energy efficiency in different modes such as standby, hibernation and idle. Reducing the power of power supply can not only save energy, but also reduce its temperature accordingly, thus prolonging the service life of power supply and whole machine products.
High reliability-power supply and electronic transformer in professional field have prolonged the service life of power supply from the aspects of component selection and product scheme design. At the same time, the reliability of power products can also be improved by reducing the temperature rise, reducing the electrical stress of devices and reducing the operating current.
High efficiency-the traditional PWM switching power supply consumes a lot of power and cannot achieve the expected benefits of high frequency and high efficiency. Power supply in professional field greatly improves the working efficiency of power supply through technologies such as zero-voltage on and zero-current off.
Low noise-ordinary switching power supply simply pursues high frequency, and the noise also increases. The power supply in professional field can be high-frequency and low-noise by adopting resonance conversion loop technology. However, the resonant conversion technology has high technical requirements, and it is necessary to control the switching frequency accurately.
Based on the present and looking forward to the future, the development prospect of power supply industry has shown four special features, among which energy conservation and environmental protection is one of the most important features. With the worsening environmental problems in China, the concept of energy conservation and environmental protection has also been deeply rooted in people’s hearts. With the continuous development of power supply industry, the future will show more diversified characteristics.