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一、绪言 随着半导体器件的发展和开关电路技术的提高,为了满足电子设备提出的小型化和节能要求,国外从七十年代起市场上大量涌现20KHZ左右的开关电源系列产品,人们称之为“20KC革命”。我们在七十年代中也开始研制,并应用于电子计算机中。目前开关电源应用越来越广,线路技术日趋完善。“20KC革命”使
I. Introduction With the development of semiconductor devices and switching circuit technology to improve, in order to meet the miniaturization of electronic devices and energy-saving requirements, from the seventies abroad, a large number of switching power supply products appear on the market about 20KHZ, people call it “20KC revolution.” We also began to develop in the seventies, and used in electronic computers. Currently more and more widely used switching power supply, circuit technology is maturing. “20KC Revolution” to make