The power supply adopts high frequency switching power technology. It is controlled by high performance microcomputer. The power supply widely used in industrial control and electronic products aging and testing. It is suitable for all kinds resistive load, capacitive load, inductive load. The control chip of the DC voltage stabilized power supply adopts the mature imported components at present and the power components adopt the latest developed great power in the world. The DC regulated power supply eliminates the bulkiness of traditional DC power supply due to power frequency transformer. Compared with the traditional power supply, the high frequency DC power supply has the advantages of small size, light weight and high efficiency. At the same time, it creates the conditions for reducing the volume of high-power DC power supply, which is also called high frequency switching power supply. DC regulated power supply has completed protection function.