毕业论文 可预置定时显示报警系统的设计.doc
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毕业论文 可预置定时显示报警系统的设计,目 录中文摘要1英文摘要2引言31 总体设计32 单元电路设计32.1 控制电路32.2 秒脉冲发生电路52.3 定时电路82.3.1 计数电路82.3.2 存储电路 102.4 译码显示电路 112.4.1 数码管 112.4.2 译码驱动器 122.5 报警电路 143 整体电路 144 结语 16参考文献 17致...
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目 录
中文摘要……………………………………………………………………………1
英文摘要……………………………………………………………………………2
引言…………………………………………………………………………………3
1 总体设计…………………………………………………………………………3
2 单元电路设计……………………………………………………………………3
2.1 控制电路………………………………………………………………………3
2.2 秒脉冲发生电路………………………………………………………………5
2.3 定时电路………………………………………………………………………8
2.3.1 计数电路……………………………………………………………………8
2.3.2 存储电路 …………………………………………………………………10
2.4 译码显示电路 ………………………………………………………………11
2.4.1 数码管 ……………………………………………………………………11
2.4.2 译码驱动器 ………………………………………………………………12
2.5 报警电路 ……………………………………………………………………14
3 整体电路 ………………………………………………………………………14
4 结语 ……………………………………………………………………………16
参考文献 …………………………………………………………………………17
致谢 ………………………………………………………………………………18
个人简历 …………………………………………………………………………19
摘 要
随着现代电子技术的发展，有关定时方面的产品越来越丰富。本文基于数字集成电路设计了一定时器，具有可预置时间，显示，报警的功能。文章详细介绍了定时器各个组成部分选择及使用方法，系统各部分的工作原理。由振荡器产生周期1秒的方波，分别用来加计数，通过计数器后输出BCD码，BCD码经过译码器翻译在显示器上进性显示。首先，根据设计要求，设计电路原理方框图，然后，通过对电路原理的分析，对电路元件进行选择并设定相应的电图元件参数，最后，设计电路的接线图并对整个系统进行功能测试。整个系统通过划分，形成了多个简单的部分，使得复杂的系统得以简化。
关键词：定时器；集成电路；可预置时间；报警。
Abstract
Along with the modern electronic technology development, the related aspect product more and more is fixed time rich.This article has designed a timer based on the digital integrated circuit, has may initialize the time, demonstrated, reports to the police function. The article in detail introduced the timer each constituent choice and the application method, the system various part of principle of work.square-wave, he cycle of 1 second, by the oscillator , were used to increase count by the counter after the output BCD code, BCD code read encoder monitors progress of the translation in the show. First, according to designs the request, designs the circuitry block diagram, then, through to the circuitry analysis, carries on the choice and the hypothesis corresponding electrograph part parameter to the circuit element, finally, designs the electric circuit the wiring diagram and carries on the function test to the overall system. The overall system through the division, has formed many simple parts, causes the complex system to be able to simplify.
Key Words：timer; integrated circuit; preset time; alarm.
中文摘要……………………………………………………………………………1
英文摘要……………………………………………………………………………2
引言…………………………………………………………………………………3
1 总体设计…………………………………………………………………………3
2 单元电路设计……………………………………………………………………3
2.1 控制电路………………………………………………………………………3
2.2 秒脉冲发生电路………………………………………………………………5
2.3 定时电路………………………………………………………………………8
2.3.1 计数电路……………………………………………………………………8
2.3.2 存储电路 …………………………………………………………………10
2.4 译码显示电路 ………………………………………………………………11
2.4.1 数码管 ……………………………………………………………………11
2.4.2 译码驱动器 ………………………………………………………………12
2.5 报警电路 ……………………………………………………………………14
3 整体电路 ………………………………………………………………………14
4 结语 ……………………………………………………………………………16
参考文献 …………………………………………………………………………17
致谢 ………………………………………………………………………………18
个人简历 …………………………………………………………………………19
摘 要
随着现代电子技术的发展，有关定时方面的产品越来越丰富。本文基于数字集成电路设计了一定时器，具有可预置时间，显示，报警的功能。文章详细介绍了定时器各个组成部分选择及使用方法，系统各部分的工作原理。由振荡器产生周期1秒的方波，分别用来加计数，通过计数器后输出BCD码，BCD码经过译码器翻译在显示器上进性显示。首先，根据设计要求，设计电路原理方框图，然后，通过对电路原理的分析，对电路元件进行选择并设定相应的电图元件参数，最后，设计电路的接线图并对整个系统进行功能测试。整个系统通过划分，形成了多个简单的部分，使得复杂的系统得以简化。
关键词：定时器；集成电路；可预置时间；报警。
Abstract
Along with the modern electronic technology development, the related aspect product more and more is fixed time rich.This article has designed a timer based on the digital integrated circuit, has may initialize the time, demonstrated, reports to the police function. The article in detail introduced the timer each constituent choice and the application method, the system various part of principle of work.square-wave, he cycle of 1 second, by the oscillator , were used to increase count by the counter after the output BCD code, BCD code read encoder monitors progress of the translation in the show. First, according to designs the request, designs the circuitry block diagram, then, through to the circuitry analysis, carries on the choice and the hypothesis corresponding electrograph part parameter to the circuit element, finally, designs the electric circuit the wiring diagram and carries on the function test to the overall system. The overall system through the division, has formed many simple parts, causes the complex system to be able to simplify.
Key Words：timer; integrated circuit; preset time; alarm.
