| 基于计数器的数字电子钟的设计 |
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| 引用本文： | 李瑞,王明艳,向厚振,沈泉波.基于计数器的数字电子钟的设计[J].山西电子技术,2011(4):19-20. |
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| 作者姓名： | 李瑞 王明艳 向厚振 沈泉波 |
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| 作者单位： | 中北大学信息与通信工程学院; |
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| 基金项目： | 山西省研究生优秀创新项目(20081017) |
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| 摘 要： | 本设计是一个基于计数器的数字电子钟装置。该装置电路的主要组成部分是555定时器、分频器、计数器、译码器、显示器、校时电路。译码代替机械式传动,用LED显示器代替指针显示进而显示时间,减小了计时误差。这种表具有时、分、秒显示时间的功能,还可以进行时和分的校准,片选的灵活性好。这种用数字电路实现的电子钟与机械式时钟相比具有更高的准确性和直观性。
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| 关 键 词： | 555定时器 分频器 计数器 译码器 显示器 |
A Design of Digital Electronic Clock Based on Counter |
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| Li Rui,Wang Ming-yan,Xiang Hou-zhen,Shen Quan-bo.A Design of Digital Electronic Clock Based on Counter[J].Shanxi Electronic Technology,2011(4):19-20. |
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| Authors: | Li Rui Wang Ming-yan Xiang Hou-zhen Shen Quan-bo |
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| Affiliation: | Li Rui,Wang Ming-yan,Xiang Hou-zhen,Shen Quan-bo (Information and Communication Engineering College,North University of China,Taiyuan Shanxi 030051,China) |
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| Abstract: | The design is a digital electronic clock device based on counters.The digital circuit mainly contains many components such as the 555 timer,multivibrator,counter,decoder,display and checkout circuit.The decoding is used instead of mechanical transmission and LED display instead of a pointer display for time,it reduces the timing error.This counter has hours,minutes,seconds function to show the time.Hours and minutes can also be used for calibration with a good flexibility of chip select.Compared with mechan... |
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| Keywords: | 555timer multi-vibrator counter decoder display |
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