開關(guān)穩(wěn)壓電源設(shè)計(jì)

電子機(jī)電論文編號(hào):JD049  字?jǐn)?shù):31671,頁(yè)數(shù):47

 目  錄

第一章 緒論…………………………………………. . . . .. . .. . .. …………. ..1
1.1 開關(guān)電源的基本概念……………………………………………………. . . .1
1.2  開關(guān)電源的發(fā)展…………………………………………. . . . ………… .. .2
1.2.1  開關(guān)電源的發(fā)展?fàn)顩r…………………………………………………….2
1.2.2 開關(guān)電源的技術(shù)追求和發(fā)展趨勢(shì)…………………………………………3
1.3 開關(guān)電源的技術(shù)動(dòng)態(tài)和要點(diǎn)…………………………………………………4
1.4 小節(jié)…………………………………………. . . . .. . .. . .. . .. . ………… .. . ..5
第二章 開關(guān)電源的基本分類和工作原理………………………………6
2.1  開關(guān)電源電路基本分類……………………………………………………6
2.1.1 選擇開關(guān)電源………………………………………. . . …………. . … ..6
2.1.2開關(guān)電源的分類…………………………………………. ………… . .. . ..6
2.2  開關(guān)穩(wěn)壓電源的基本工作原理……………………………………………9
2.2.1  TOPSwitch系列單片開關(guān)電源的工作原理……………………………9
2.2.2 TOPSwitch-Ⅱ的性能測(cè)試…………………………………………………10
2.2.3  開關(guān)穩(wěn)壓電源的工作原理………………………………………………11
2.2.4四種反饋電路的基本類型 ………………………………………………13
2.2.5  單片開關(guān)電源的兩種工作模式…………………………………………14
2.3 小節(jié)…………………………………………. . . . .. . .. . .. . .. . ……….. . ..14
第三章小功率通用開關(guān)穩(wěn)壓電源的研制……………. .. ………. .. . ..15
3.1性能特點(diǎn)及技術(shù)指標(biāo)………………………………………………. . . . ..15
3.2 TOP224P型的管腳功能………………………………………………. . . 15
3.2.1  TOP224P的工作原理……………………………………………. . .  . ..16
3.3 開關(guān)電源電路中的關(guān)鍵元器件的選擇與設(shè)計(jì)……………………………20
3.3.1 TL431型可調(diào)式精密并聯(lián)穩(wěn)壓器………………………………………20
3.3.2 線性光耦合器PC817………………………………………………. . . .21
3.3.3 瞬態(tài)電壓抑制器……………………………………………. . . … . .. . ..22
3.3.4快恢復(fù)及超快恢復(fù)二極管………………………………………………. . . . .23
3.4  開關(guān)電源的設(shè)計(jì)原理………………………………………………. . . . ..24
3.4.1  開關(guān)電源的的工作原理及電路圖……………………………………24
3.4.2電磁干擾濾波器…………………………………………. . . . .. … . .. . ..26
3.5反激式單片開關(guān)電源的基本原理…………………………………………26
3.6高頻變壓器的設(shè)計(jì)和繞制方法………………………………………….28
3.6.1 單片開關(guān)電源高頻變壓器的設(shè)計(jì)要點(diǎn)…………………………………28
3.6.2高頻變壓器的繞制注意事項(xiàng)…………………………………………….29
3.7輸出整流濾波電路的設(shè)計(jì)……………………………………………. . . . 29
3.7.1輸出整流電路的設(shè)計(jì)…………………………………………. . . … . ..29
3.7 .2輸出濾波電路的設(shè)計(jì)…………………………………………. . … . . ..30
3.8計(jì)算機(jī)設(shè)計(jì)單片開關(guān)電源的程序流程圖…………………………………30
3.9單片開關(guān)電源設(shè)計(jì)方法和步驟…………………………………………34
3.10 小節(jié)…………………………………………. . . . .. . .. . .. . .. . 40
第四章    開關(guān)電源設(shè)計(jì)的總結(jié)……………………………………41
4.1設(shè)計(jì)實(shí)驗(yàn)結(jié)果分析…………………………………………. . . . .. . .. . ..41
4.2設(shè)計(jì)試驗(yàn)總結(jié)…………………………………………. . . . .. . .. . ..  ..41
參考文獻(xiàn)…………………………………………. . . . .. . .. . .. . ..46
致謝…………………………………………. . . . .. . .. . .. . .. .47

摘要
 
     隨著電力電子技術(shù)的告訴發(fā)展，電力電子設(shè)備與人們的工作、生活的關(guān)系日益密切，而電子設(shè)備都離不開可靠的電源，進(jìn)入80年代計(jì)算機(jī)電源全面實(shí)現(xiàn)了開關(guān)電源化，率先完成計(jì)算機(jī)的電源換代，進(jìn)入90年代開關(guān)電源相繼進(jìn)入各種電子、電器設(shè)備領(lǐng)域，程控交換機(jī)、通訊、電子檢測(cè)設(shè)備電源、控制設(shè)備電源等都已廣泛地使用了開關(guān)電源，更促進(jìn)了開關(guān)電源技術(shù)的迅速發(fā)展。開關(guān)電源是利用現(xiàn)代電力電子技術(shù)，控制開關(guān)晶體管開通和關(guān)斷的時(shí)間比率，維持穩(wěn)定輸出電壓的一種電源，開關(guān)電源一般由脈沖寬度調(diào)制（PWM）控制IC和MOSFET構(gòu)成。開關(guān)電源和線性電源相比，二者的成本都隨著輸出功率的增加而增長(zhǎng)，但二者增長(zhǎng)速率各異。線性電源成本在某一輸出功率點(diǎn)上，反而高于開關(guān)電源，這一成本反轉(zhuǎn)點(diǎn)。隨著電力電子技術(shù)的發(fā)展和創(chuàng)新，使得開關(guān)電源技術(shù)在不斷地創(chuàng)新，這一成本反轉(zhuǎn)點(diǎn)日益向低輸出電力端移動(dòng)，這為開關(guān)電源提供了廣泛的發(fā)展空間。
 
 關(guān)鍵詞:開關(guān)電源  穩(wěn)壓  瞬間電壓
 
 Abstract
     Tells the development along with the electric power electronic technology, the electric power electronic installation and people's work, the life relations are day by day close, but the electronic installation cannot leave the reliable power source, has realized the switching power supply comprehensively since the 80s computer power source, takes the lead to complete computer's power source update, entered each kind of electronic, the electric appliance equipment domain one after another since the 90s switching power supply, the program controlled switch, the communication, the electron check-out facility power source, the control device power source and so on widely has used the switching power supply, promoted the switching power supply technology rapidly expand. The switching power supply is uses the modern electric power electronic technology, controlling switch transistor clear and the shutdown time ratio, the maintenance stable output voltage one kind of power source, the switching power supply (PWM) controls IC and the MOSFET constitution generally by the pulse width modulation. The switching power supply and the linear power source compare, the two's cost increases along with the output grows, but the two growth speed varies. The linear power source cost lights in some output, instead is higher than the switching power supply, this cost point of inversion. Along with the electric power electronic technology's development and the innovation, cause the switching power supply technology to innovate unceasingly, this cost point of inversion to the low output electric power end migration, this has provided the widespread development opportunities day by day for the switching power supply.
 
 key word: Switching power supply constant voltage instantaneous voltage