Power supply is a technical product with power electronics as the core. "Power supply" is the terminal product, and "power supply" product is the specific product embodiment of "power electronics" application technology. Power electronic power usually refers to power products using power electronic technology and is an important member of power electronic equipment. The power supply industry with power electronics as its core technology is the basis for the development of various high-tech industries, and all high-precision technological equipment requires the technical support of power electronic power supplies.

The power industry is widely used in all walks of life and is inseparable from the national economy. The establishment time of Chinese power supply enterprises is generally short, and only 11.3% of enterprises have been established for more than 10 years. At the same time, with the gradual deepening of my country's reform and opening up, foreign-funded enterprises and joint ventures have gradually increased, which has intensified competition. Opportunities and challenges. Regarding the operating conditions of power supply companies, due to the strong overall demand, although the competition has intensified, the average income and profit of the industry have increased. At the same time, in order to have the potential for further competition in the future, Chinese power supply companies have increased their R&D efforts and increased R&D personnel. Since the 1990s, the power supply industry has developed explosively. The number of enterprises has increased from a few hundred in the early 1990s to tens of thousands, and the output has increased from more than one billion yuan in the 1990s to tens of billions. and is still developing rapidly.