摘要
针对OTL功率放大器实验普遍存在的效率低下问题,本文从器件、电路、测量方法和计算方法等方面分析了该放大电路效率的理论值。通过实验测试和相关数据计算分析,放大器的实际效率可以达到56.1%,接近于估计值60%。为此,本文提出了该实验电路改进的方法,并介绍了正确的测量与计算方法,这对如何引导学生通过实验来提高分析问题和解决问题的能力,具有一定的指导意义。
For the general inefficiency of OTL power amplifiers,the theoretical efficiency is analyzed in terms of the devices,circuits,methods of measurement calculation,etc.With the measured data and calculation,the actual efficiency is equal to 56.1%,and near to the theoretical 60%,and some improvements are put forward including the circuits and the correct measurement calculation methods in this paper.All these are good significance for how to guide students to access to ability to analyze and solve problems in the experimental course
出处
《电气电子教学学报》
2012年第4期66-69,共4页
Journal of Electrical and Electronic Education
基金
武汉工程大学教学研究项目(2008037
X201020)
关键词
推挽电路
功率
效率
饱和压降
push-pull circuit
power
efficiency
saturation voltage
