基于BUCK变换的一种特殊应用型开关电源  

A Special Applied Switch Power Based on BUCK Transformation

作　　者：邓孝祥[1] 闫大新[1] 

机构地区：[1]黑龙江科技学院自动化工程系,黑龙江哈尔滨150027

出　　处：《工矿自动化》2004年第5期19-21,共3页Journal Of Mine Automation

摘　　要：介绍了以BUCK变换为主电路、UC1 84 2为核心构成的电流控制型脉宽调制 (PWM )开关电源 ,并对其进行分析和实验 ,投入现场工作。实践结果表明 :该开关电源具有频响快、电压调整率和负载调整率高、输出电压稳定、纹波小的优点 ,是一种性能可靠的实用型开关电源。This paper introduced a current-controlling pulse width-modulating switch power, which took BUCK transformation as the main circuit, and took UC1842 as the core. And analyzed its principle and carried on experiment, then used it in the field. The result of practice showed that this switch power has many advantages, such as fast frequency response, high adjusting rate of voltage and high adjusting rate of load, stable output of voltage and small ripple. It is a practical switch power with reliable performance.

关 键 词：开关电源 电压调整率 负载调整率 BUCK变换 UC1842 PWM 

分 类 号：TD611[矿业工程—矿山机电] TN86[电子电信—信息与通信工程]