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开关电源具有体积小、效率高等优点,目前在国内外均已得到了广泛的使用。单端开关电源的特点是线路形式简单、体积小、单台输出功率不大,特别适用于中小型计算机和外围设备中使用。对于20 KC频段的开关电源,目前在技术上已经相当完善。用于开关电源中的器件如高反压功率晶体管、肖特基二极管、开关电源的控制组件,以及专为开关电源配套生产的高频电容、变压器磁心等在国内均已定型生产,性能比以前也有了较大的改进。因而从客观上也具备了搞系列化产品的条件。系列化工作将大大简化产品的设计工作。有利于开关电源的生产和使用。本系列单端开关电源,输入为220伏市电,输出电压分别为5伏、12伏、24伏等。输
Switching power supply has the advantages of small size, high efficiency, at home and abroad have been widely used. Single-ended switching power supply is characterized by a simple line, small size, single output power is not large, especially for small and medium-sized computers and peripherals. For the 20 KC frequency band switching power supply, at present technically already quite perfect. For the switching power supply devices such as high-voltage power transistors, Schottky diodes, switching power supply control components, and supporting the production of switching power supply for high-frequency capacitors, transformers and other cores have been stereotyped in the country production, performance than before There have also been major improvements. Therefore objectively also have the conditions for engaging in series products. Serialization will greatly simplify product design. Is conducive to the production and use of switching power supply. This series of single-ended switching power supply, input is 220 volt electricity, the output voltage is 5 volts, 12 volts, 24 volts and so on. lose