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小型電子聲光禮花器設(shè)計(jì)方案-wenkub.com

2025-05-11 23:51 本頁面
   

【正文】 Small, lightweight and environmentally friendly features, electronic sound and light fireworks are widely used in family celebrations, gatherings of friends, Gala, children39。 4 feet is reset terminal (MR ), together with the low level of the output is low。s toys, and some interesting places such as the electronic product. Small electronic sound and light fireworks essence is to issue a squarewave oscillation signal with an oscillation circuit triggered analog fireworks color lightemitting circuit and analog fireworks explosion sounder circuit manner, not only the application in the electronic sound and light fireworks circuit, in other also very mon circuit applications, such as analog phone ringing circuit, simple hypnosis, DC motor speed control circuit doorbell circuit. Small electronic sound and light fireworks ceremony fireworks pared with the environmental, safety, suitable for indoors, etc., is not the kind of feeling like a falling meteor shower when the ceremony fireworks discharge circuit plexity and difficult to repair. Before talking about the small electronic sound and light fireworks, first familiarize yourself with the timebase integrated circuit 555 oscillation circuit 555 IC is a timer application, so called the 555 timer or 555. But later developed it in addition to timing delay control, can also be used for dimming, thermostats, pressure regulator, governor variety of control and measurement testing. In addition, it is also can be posed of the pulse oscillation, monostable, bistable, and the pulse modulation circuit for the AC signal source, power conversion, frequency conversion, pulse modulation. It is reliable, easy to use, inexpensive, is widely used in a variety of electronic products, dozens of ponents, IC 555 internal divider, parator, basic RS flipflop, the discharge tube, and buffer , etc., the circuit is more plex, is a mixture of analog circuits and digital circuits, as shown in Figure 1. 555 IC 8pin package, dual inline type, shown in Figure 2 (A) as shown by the arrangement of the input and output can be viewed as shown in Figure 2 (B) shown. 6 feet, said threshold end (TH), on the input of the parator。 目前,電子聲光禮花器以小型、輕量和環(huán)保的特點(diǎn)被廣泛應(yīng)用于家庭慶典、朋友聚會(huì)、聯(lián)歡晚會(huì)、兒童玩具及一些趣味性等場所,是當(dāng)今電子信息產(chǎn)業(yè)飛速發(fā)展不可缺少的一種電子產(chǎn)品。   555集成電路是8腳封裝,雙列直插型,如圖2(A)所示,按輸入輸出的排列可看成如圖2(B)所示?! ≡谡勑⌒碗娮勇暪舛Y花器之前,先熟悉一下時(shí)基集成電路555振蕩電路,555集成電路開始是作定時(shí)器應(yīng)用的,所以叫做555定時(shí)器或555時(shí)基電路。這是我人生的剛剛開始,任重道遠(yuǎn),希望能讓我所掌握的知識(shí)能有用武之地。但是由于課題的要求以及作者時(shí)間和水平的有限,無論是對(duì)各種芯片工作原理、版圖還是整體電路的設(shè)計(jì),都沒有進(jìn)行深層級(jí)的研究,一些細(xì)節(jié)問題也還沒有得到很好的解決方式,還需要進(jìn)一步修改和完善。電路結(jié)構(gòu)新穎、元件不多、調(diào)試容易,適合自制。結(jié) 論本文設(shè)計(jì)了一種基于時(shí)基集成電路555,由它構(gòu)成方波發(fā)生器,發(fā)出的方波振蕩信號(hào)控制發(fā)光的電路部分和發(fā)聲的電路部分,在設(shè)計(jì)該電路的過程當(dāng)中,對(duì)時(shí)基集成電路555,十進(jìn)制計(jì)數(shù)器,雙向模擬開關(guān),微分電路,LED的種類及工作條件等進(jìn)行了研究。只要抓住其核心的東西,即充分熟悉電子禮花器的基本結(jié)構(gòu)以及發(fā)光電路部分及發(fā)聲電路部分模塊的特性,它們工作的基本條件。調(diào)整電位器VR2 可改變IC2 的振蕩頻率,以使揚(yáng)聲器發(fā)出類似禮花的聲響,LED2 用于指示其工作狀態(tài)。電源的正負(fù)極性有沒有接反,正負(fù)極間有沒有短路想現(xiàn)象。需要通過由電路板的整體測試與調(diào)整,才可以發(fā)現(xiàn)設(shè)計(jì)方案中的不足。千萬別裝反了。在電路板上連接電路時(shí)應(yīng)嚴(yán)格按圖連接引腳,注意走線整齊,布局合理,首先對(duì)照原理圖在電路板上進(jìn)行合理的整體布局,包括元器件合理的擺放使其便于元器件間的連接和美觀、整體走線合理美觀、盡量使接地線和接電源線分別集中。如果所需的各個(gè)電阻大小電容大小在市場上沒有這種大小,就需要購買的電容大小規(guī)格盡量接近計(jì)算值,然后通過公式(23)、(24),計(jì)算出的大小,的大小規(guī)格在市場上不能直接買到可以通過電阻的串并聯(lián)來實(shí)現(xiàn)。 小型電子聲光禮花器的Proteus仿真結(jié)果 根據(jù)原理圖通過proteus仿真軟件連接電路進(jìn)行了仿真,連接好電路點(diǎn)擊開始按鈕整個(gè)電路正常工作,模擬禮花色彩的發(fā)光電路和模擬禮花爆炸聲的發(fā)聲電路同時(shí)工作。使用Proteus 軟件進(jìn)行單片機(jī)系統(tǒng)仿真設(shè)計(jì),是虛擬仿真技術(shù)和計(jì)算機(jī)多媒體技術(shù)相結(jié)合的綜合運(yùn)用,有利于培養(yǎng)學(xué)生的電路設(shè)計(jì)能力及仿真軟件的操作能力;在單片機(jī)課程設(shè)計(jì)和全國大學(xué)生電子設(shè)計(jì)競賽中,我們使用 Proteus 開發(fā)環(huán)境對(duì)學(xué)生進(jìn)行培訓(xùn),在不需要硬件投入的條件下,學(xué)生普遍反映,對(duì)單片機(jī)的學(xué)習(xí)比單純學(xué)習(xí)書本知識(shí)更容易接受,更容易提高。隨著科技的發(fā)展,“計(jì)算機(jī)仿真技術(shù)”已成為許多設(shè)計(jì)部門重要的前期設(shè)計(jì)手段。它的元器件、連接線路等卻和傳統(tǒng)的單片機(jī)實(shí)驗(yàn)硬件高度對(duì)應(yīng)。 電路仿真:在PROTEUS繪制好原理圖后,調(diào)入已編譯好的目標(biāo)代碼文件:*.HEX,可以在PROTEUS的原理圖中看到模擬的實(shí)物運(yùn)行狀態(tài)和過程。2.仿真處理器及其外圍電路,可以仿真51系列、AVR、PIC、ARM、等常用主流單片機(jī)。在編譯方面,它也支持IAR、Keil和MPLAB等多種編譯器。它是目前最好的仿真單片機(jī)及外圍器件的工具。表 27 發(fā)光二極管循環(huán)列表CD4017輸出CD4066發(fā)光二極管Q0CD4066(
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