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介绍一种用高频开关电源作预稳级的精密稳压稳流电源。该电源的所有功率器件均采用功率ＭＯＳＦＥＴ，控制电路和保护电路均采用集成电路，既具有高精度、高效率，又具有小体积、轻重量，是一种可靠性高、应用面宽的大功率电源。
Introduce a high-frequency switching power supply for the pre-stabilization of the steady flow of precision power supply. All the power devices of the power supply adopt power MOSFETs. The control circuit and the protection circuit are both integrated circuits, which have the advantages of high precision, high efficiency, small size, light weight, high reliability and wide application range power supply.