摘要
为了提高负反馈放大器的稳定性,需要对负反馈放大器进行频率补偿。用Matlab中的LTI Viewer进行负反馈放大器的稳定性分析和频率补偿设计是一种非常有效的方法。本文介绍LTI Viewer进行负反馈放大器的滞后补偿、超前补偿和超前带后补偿的设计方法,对比了三种不同补偿方式的特点,给出相应的程序及结果分析。表明用LTI Viewer进行多级负反馈放大器的设计与分析,方法简便、实用,图形化特点强,且交互性好。
To enhance the stability of negative feedback amplifier, it is necessary to design the negative feedback amplifier using frequency compensation. It is very intuitionistic and effective for us to use Matlab LTI Viewer for analyzing the stability of negative feedback amplifier and designing the frequency compensation. In the paper three different compensation methods, that is lag compensation, lead compensation and lead- lag compensation, are discussed using LTI Viewer. The characteristics of three different compensations are compared. The Matlab program and analysis results are given. The analyses demonstrated that the method of using LTI Viewer to design and analyze higher order negative feedback amplifier is simple and practical with the character of graphic and interactive.
出处
《电气电子教学学报》
2009年第3期64-67,共4页
Journal of Electrical and Electronic Education
