最新基于定時(shí)器電子琴的設(shè)計(jì)-展示頁(yè)
2025-07-04 14:34本頁(yè)面
【正文】 時(shí)器是由兩個(gè)比較器來實(shí)現(xiàn)一些它的主要功能，兩個(gè)比較器的輸出電壓可以通過控制RS觸發(fā)器和放電管來調(diào)整。用CMOS制作的定時(shí)器，叫7555定時(shí)器。用555定時(shí)器來做這個(gè)設(shè)計(jì)，有以下的三個(gè)原因，首先我們要了解555定時(shí)器的意義，它是模擬和數(shù)字現(xiàn)結(jié)合的小規(guī)模的一個(gè)集成器件。在學(xué)習(xí)555定時(shí)器時(shí)會(huì)學(xué)到新的知識(shí)。 digital circuits。關(guān)鍵字：電子琴； 音階； 數(shù)字電路； 555定時(shí)器安徽三聯(lián)學(xué)院畢業(yè)論文 keyboard design based on 555 timer Abstract ：With the development of the society,music has bee a indispensable part in life of modern keyboard as a instrument which bined electronic technology and music in the 16th centry,it plays an important part in music of new role.With the help of timer 555,the design of simple electronic keyboard is much easier,and the internals of timer 555 is all based on simulation circuit and digital circuit,so to form the multivibrator which generates signals of different frequency.simple electronic keyboard is working on some signal drivers of different frequency based on simulation circuit and digital circuit,so as to make different music design can make 21 different music scales in low C middle C and high simple designs,digital circuit have it’s advantages such as it’s simple,easy to control,stable frequency and lowcost.After getting to know the internals and functions about the timer 555,we also considered it’s design making clear it’s design purpose and requirements,we ran tests through simulation then we assemble the parts and tested again,we aim to make 8 different keys to make 8 different scales.In this design,first we need to make clear of the design of all is introduction,to outline the main point and the whole design process,from design background and design requirement to the whole circuit diagram and simulation that is choosing parts and assemble them,and run tests on real course we need to be careful in the simulation tests to avoid reason I choose this is that the single chip is been don’t quite familiar with timer 555,and also because it’s both easy and cost less.In this design,the most important part is the design of circuit diagram,simulation and real single step demands full carefulness. Keywords: keyboard。本次設(shè)計(jì)中，最重要的環(huán)節(jié)有設(shè)計(jì)電路圖，仿真和實(shí)物焊接。在軟件仿真和實(shí)物制作過程中要細(xì)心，以防出現(xiàn)較大的誤差。設(shè)計(jì)任務(wù)中畫好整體電路框圖，再用軟件仿真，調(diào)試。首先是緒論，概述整個(gè)設(shè)計(jì)的重點(diǎn)和整個(gè)設(shè)計(jì)的流程。設(shè)計(jì)結(jié)果是讓八個(gè)按鍵發(fā)出八個(gè)不同的音階。明確設(shè)計(jì)目的和設(shè)計(jì)要求，通過學(xué)習(xí)和探討，用仿真軟件進(jìn)行仿真，調(diào)試。對(duì)于一些簡(jiǎn)單功能的設(shè)計(jì)，數(shù)字電路具有結(jié)構(gòu)簡(jiǎn)易、實(shí)現(xiàn)方便、產(chǎn)生頻率也相當(dāng)穩(wěn)定、成本低廉等優(yōu)點(diǎn)。簡(jiǎn)易的電子琴采用模擬電路和數(shù)字電路產(chǎn)生的不一樣頻率信號(hào)驅(qū)動(dòng)揚(yáng)聲器，發(fā)出不同音階的聲音。有了555定時(shí)器的產(chǎn)生，簡(jiǎn)易電子琴的設(shè)計(jì)就更加的簡(jiǎn)單。安徽三聯(lián)學(xué)院畢業(yè)論文
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