最新基于定時器電子琴的設(shè)計(已修改)
2025-07-07 14:34 本頁面
【正文】 安徽三聯(lián)學(xué)院畢業(yè)論文 基于555定時器電子琴的設(shè)計摘 要 隨著現(xiàn)代社會的發(fā)展和進(jìn)步，音樂已成為現(xiàn)代人們的生活中必不可缺的一部分。電子琴作為16世紀(jì)電子科技和音樂結(jié)合的產(chǎn)物，已經(jīng)在新時代的音樂中扮演著非常重要的角色。有了555定時器的產(chǎn)生，簡易電子琴的設(shè)計就更加的簡單。因為，555定時器內(nèi)部是根據(jù)模擬電路和數(shù)字電路構(gòu)成的，可以形成多諧振蕩器，發(fā)出不同頻率的信號。簡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驅(qū)動揚聲器，發(fā)出不同音階的聲音。本設(shè)計是利用數(shù)字電路來產(chǎn)生C調(diào)的低、中、高二十一個音階。對于一些簡單功能的設(shè)計，數(shù)字電路具有結(jié)構(gòu)簡易、實現(xiàn)方便、產(chǎn)生頻率也相當(dāng)穩(wěn)定、成本低廉等優(yōu)點。了解555定時器的一些內(nèi)部原理和功能特征后，再做電子琴的設(shè)計。明確設(shè)計目的和設(shè)計要求，通過學(xué)習(xí)和探討，用仿真軟件進(jìn)行仿真，調(diào)試。最后再組裝元器件，進(jìn)行測試。設(shè)計結(jié)果是讓八個按鍵發(fā)出八個不同的音階。在本次設(shè)計中，要理清設(shè)計思路。首先是緒論，概述整個設(shè)計的重點和整個設(shè)計的流程。然后，從設(shè)計背景到設(shè)計主要任務(wù)。設(shè)計任務(wù)中畫好整體電路框圖，再用軟件仿真，調(diào)試。最后，是元器件的選擇和組裝，做好的實物也要進(jìn)行調(diào)試。在軟件仿真和實物制作過程中要細(xì)心，以防出現(xiàn)較大的誤差。選擇555定時器，而沒有選擇單片機(jī)，是因為，555定時器在設(shè)計電子琴方面比較簡易，555定時器相對來說比較簡單，成本低。本次設(shè)計中，最重要的環(huán)節(jié)有設(shè)計電路圖，仿真和實物焊接。都要細(xì)心對待每個環(huán)節(jié)。關(guān)鍵字：電子琴； 音階； 數(shù)字電路； 555定時器安徽三聯(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
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