本文介绍一个体积小,重量轻,效率为80%的便于集成化的电源变换器,并对工程设计提供了计算公式。本变换器由10瓦输出变至50瓦输出均能可靠地工作,具有抗短路的性能。在某些设备中,时常把24伏至32伏的直流电源电压 E 变换为几种稳定的直流电压,并要求输出的直流电压与输入电源电压 E 有良好的电气隔离。在这种场合变换器成为不可少的。 This article describes a compact, light weight, 80% efficient integrated power converter and provides a formula for engineering design. The converter from 10 watts output to 50 watts output can work reliably, with anti-short circuit performance. In some devices, the 24 V to 32 V DC supply voltage E is often converted to several stable DC voltages and the output DC voltage is well isolated from the input supply voltage E. In this occasion the converter becomes indispensable.