电子技术实验问题  

The Problems in the Electronic Technology Experiments

作　　者：朱传琴[1] 赵笑笑[1] 

机构地区：[1]山东电力高等专科学校,山东济南250002

出　　处：《山东电力高等专科学校学报》2011年第4期50-52,共3页Journal of Shandong Electric Power College

摘　　要：在指导学生做电子技术实验的过程中,发现以下几个问题:(1)正弦波振荡电路会输出三角波信号;(2)测直流稳压电源的纹波电压值比直流电压值还要高;(3)测试TTL门电路参数时,TTL门电路的输出高电平实测值与理论值不相符等等。作者针对这些问题,经过反复查阅资料,并做了不同参数,不同器件的多次实验,找到了问题所在,并提出相应的理论分析依据。In the process of instructing students to carry out electronic technology experiments, there exists three problems as follow： The first is that sine wave oscillator outputs a triangle wave. Second is that ripple voltage of DC regulated power supply is higher than direct current voltage. Thirdly, the measure value of high-level output of TI＇L is not equal to the academic value of it. In allusion to these problems, we consult many correlative data, carry out equipments with different parameters and apparatuses time after time, and propose corresponding academic analyses.

关 键 词：正弦波 三角波 直流电压 纹波 高电平 

分 类 号：G423.02[文化科学—课程与教学论]