详细信息
555压控振荡器振荡周期计算公式的修正
The Correction on an Oscillating Period Calculating Formula of 555 Voltage Controlled Oscillator
文献类型:期刊文献
中文题名:555压控振荡器振荡周期计算公式的修正
英文题名:The Correction on an Oscillating Period Calculating Formula of 555 Voltage Controlled Oscillator
作者:陈廷侠[1];张家平[1]
第一作者:陈廷侠
机构:[1]新乡师范高等专科学校,物理系,河南,新乡,453000 新乡师范高等专科学校,物理系,河南,新乡,453000
第一机构:新乡学院物理与电子工程学院
年份:2006
卷号:0
期号:2
起止页码:23-26
中文期刊名:新乡师范高等专科学校学报
外文期刊名:Journal of Xinxiang Teachers College
语种:中文
中文关键词:555定时器;压控振荡器;极小值;饱和压降
外文关键词:555 timer;voltage controlled oscillator;the minimum result;saturation voltage drop formula
摘要:由555时基电路组成的压控振荡器,经实验得出的ux-T曲线中有一个极小值,这和理论计算值有较大差异.分析了产生这种现象的原因是控制信号ux较小时,受放电管V的饱和压降uces影响所致,并对理论计算公式进行了修正.
The ux-T curve exists a minimum result,got from the experiments on voltage controlled oscillator made up of 555 timers,whereas the minimum result is different from the theoretical calculation.This paper analyses the causes about this strange situation,which is caused by the affection by saturation voltage drop of the discharge crystal triode V when steering order ux becomes a smaller calculation than a usual one.Then the paper corrects the former calculating formula.
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