Communication power supply is the foundation to ensure smooth communication, and its basic position ensures the long-term vigorous development of power supply specialty, maintaining the stability and independence of the specialty, and its special role is irreplaceable by other majors. Therefore, since the 1960s, the cause of communication power supply has been in the ascendant, the technology has been continuously improved, the equipment has been continuously updated, and the professional status has been increasingly improved. Especially since the 1990s, with the extraordinary rapid development of communication, power supply specialty has made great progress, and new electronic devices, new equipment, microelectronics technology and computer centralized monitoring technology have been widely adopted by communication power supply.

Nowadays, with the rapid development of electronic technology, all kinds of electronic and electrical equipment have higher and higher requirements for the performance of regulated power supply, which is developing in the opposite direction of miniaturization, high efficiency, low cost, high performance and modularization. A new generation of intelligent stabilized power supply designed and manufactured with single-chip microcomputer system as the core is not only simple in circuit, compact in structure and excellent in performance, but also can be used to perform various operations on sampled data, eliminate drinking errors and improve the stabilized power supply.