直流穩(wěn)壓電源-電子工程畢業(yè)論文-展示頁(yè)
2025-02-16 08:42本頁(yè)面
【正文】 ........................................12 167。 直流穩(wěn)壓電源原理 ................................................................................ 8 167。 ............................................................................................... 9 167。 直流穩(wěn)壓 電源的技術(shù)指標(biāo) ......................................................................... 7 第三章 直流穩(wěn)壓電源的設(shè)計(jì) ...................................................................................... 8 167。 直流穩(wěn)壓電源的構(gòu)成 ................................................................................ 6 167。直流高壓穩(wěn)壓電源的長(zhǎng)期穩(wěn)定性主要受溫度的影響，文中分析了直流高壓穩(wěn)壓電源的構(gòu)成原理，建立了溫度穩(wěn)定性的數(shù)學(xué)模型 ，給出了精確和可行的定量計(jì)算方法，并應(yīng)用到具體的實(shí)例中加以驗(yàn)證，說(shuō)明了該模型的應(yīng)用價(jià)值，對(duì)直流高壓穩(wěn)壓電源的設(shè)計(jì)具有理論指導(dǎo)作用。保護(hù)電路的種類很多 ,這里介紹極性保護(hù)、程序保護(hù)、過(guò)電流保護(hù)、過(guò)電壓保護(hù)、欠電壓保護(hù)以及過(guò)熱保護(hù)等電路。晶體管和集成器件耐受電、熱沖擊的能力較差。本文主要以半橋變換電路為開(kāi)關(guān)電源的主電路，設(shè)計(jì)一臺(tái)品質(zhì)優(yōu)良的直流開(kāi)關(guān)穩(wěn) 壓電源。宜賓學(xué)院 畢 業(yè) 設(shè) 計(jì) 專 業(yè)： 電子工程 學(xué)生姓名： 曾林芳 指導(dǎo)教師： 李慶 設(shè)計(jì)題目： 直流穩(wěn)壓電源 1 摘 要 直流穩(wěn)壓電源由于具有效率高、體積小、重量輕的特點(diǎn)，近年來(lái)獲得了飛速發(fā)展。直流穩(wěn)壓電源高頻化是其發(fā)展的方向，高頻化使開(kāi)關(guān)電源小型化，并使直流穩(wěn)壓電源進(jìn)入更廣泛的應(yīng)用領(lǐng)域，特別是在高新技術(shù)領(lǐng)域的應(yīng)用，推動(dòng)了高新技術(shù)產(chǎn)品的小型化、輕便化。 直流開(kāi)關(guān)穩(wěn)壓器中所使用的大功率開(kāi)關(guān)器件價(jià)格較貴 ,其控制電路亦比較復(fù)雜 ,另外 ,開(kāi)關(guān)穩(wěn)壓器的負(fù)載一般都是用大量的集成化程度很高的器件安裝的電子系統(tǒng)。因而開(kāi)關(guān)穩(wěn)壓器的保護(hù)應(yīng)該兼顧穩(wěn)壓器本身和負(fù)載的安全。 通常選用幾種保護(hù)方式加以組合 ,構(gòu)成完善的保護(hù)系統(tǒng)。 關(guān)鍵詞： 穩(wěn)壓器 半橋變換電路 數(shù)學(xué)模型 應(yīng)用價(jià)值 abstract of a thesis Dc regulated power supply with the characteristics of high efficiency, small volume, light weight, obtained the rapid development in recent years. Dc regulated power supply high frequency is its development direction, high frequency, the miniaturization of switch power supply, dc regulated power supply and to enter into a wider range of application fields, especially in the high and new technology in the field of application, promoted the hightech products of miniaturization, light change. This article mainly to transform half bridge circuit for the main circuit of switching power supply, design a high quality of dc regulated power supply switch. Dc switching voltage stabilizer used in highpower switching devices more expensive, the control circuit is also more plex, in addition, the switching voltage stabilizer load is usually with a high degree of large integrated device installed electronic systems. The transistor and the integrated device resistance electric and thermal shock ability is poor. Thus switching voltage stabilizer protection should take into account voltage regulator itself and the safety of the load. Many different kinds of protection circuit, introduced here polarity protection, procedure protection, over current protection, overvoltage protection, under voltage protection and overheat protection circuit. Usually chooses to bine several protection methods, improve the protection of the system. Dc regulated power supply high longterm stability is mainly affected by temperature, this paper analyses the position of dc regulated power supply high principle, has established the mathematical model of temperature stability, accurate and feasible quantitative calculation method is given, and applied to the concrete instance verified, illustrates the application value of the model, the design of dc regulated power supply high with theoretical guidance. Keywords: voltage stabilizer and a half bridge transformation circuit mathematical model of applied value 2 目錄 第一章 直流穩(wěn)壓器原理 ............................................................................................. 3 第二章 直流穩(wěn)壓電源簡(jiǎn)介 .......................................................................................... 6 167。 直流穩(wěn)壓電源的分類 .....................................................
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