摘要
单端反激开关电源具有输出纹波小、输出稳定、体积小、重量轻、效率高以及良好的动态响应性能等许多优点,被广泛应用在小功率开关电源的设计中。文中首先对UC3843芯片做了简单的介绍,描述了其在电路中的主要功能;设计了电路原理图,并对电路原理图进行了简单介绍;再根据反激式开关电源电路设计公式详细介绍了各部分参数,最后给出了电路的测试结果。实验表明,该开关电源输出电压平稳,性能稳定。
Single-ended flyback switching power supply has many advantages,such as small output ripple,stable output,small size,light weight,high efficiency and good dynamic response performance,etc.,which widely applies for the design of switching power supply.At first,the UC3843 chip is introduced briefly,and its main function in the circuit is described,then the design of circuit principle diagram and the circuit principle diagram are introduced in this paper.According to the circuit of the flyback switching power supply design formula is introduced in detail.The parameters of every part,and finally the circuit test results is given.Experiments show that the switching power supply output voltage stable,stable performance.
出处
《通信电源技术》
2016年第4期115-118,共4页
Telecom Power Technology
关键词
单端反激
开关电源
UC3843芯片
single-ended flyback
switching power supply
the UC3843 chip
