摘要
本文提出一种智能型单象限斩波器以克服传统可控整流方式的不足。应用于直流传动的实验表明该斩波器对电网有良好的适应性，高功率因数，甚至在低速轻载条件下仍然具有良好的性能．
A Smart Chopper of Single Quadrant Operation is introduced to overcome the disadvantags of traditional controlled rectification and a DC motor speed control system implemented.Experiments show that the system has good adaptability to the network frequency and voltage changes and additional advantages of high power factor, good static and dynamic characteristics even under low speed light load operation.
