本文關(guān)鍵詞： 開(kāi)關(guān)電源 低紋波 移相全橋 倍流整流　出處：《北京交通大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：摘要：隨著我國(guó)軍事,醫(yī)療,工業(yè)等領(lǐng)域的快速發(fā)展,半導(dǎo)體激光器得到了越來(lái)越廣泛的應(yīng)用,因此,激光用電源也得到了快速發(fā)展。半導(dǎo)體激光器因其自身特性對(duì)驅(qū)動(dòng)電源的要求非常高,它需要紋波低,精度高,穩(wěn)定度高,效率高的恒流電源。 傳統(tǒng)的線性電源因其自身體積大、效率低等缺點(diǎn)無(wú)法得到進(jìn)一步的發(fā)展。而開(kāi)關(guān)電源以其自身體積小,功率密度高,效率高,控制精度高等優(yōu)點(diǎn)得到了廣泛的應(yīng)用。因此,研制成本低,體積小,紋波小,效率高,穩(wěn)定度高的恒流開(kāi)關(guān)電源有著相當(dāng)重要而深遠(yuǎn)的意義,這對(duì)我國(guó)各個(gè)領(lǐng)域的快速發(fā)展都起到至關(guān)重要的作用。 本文的第二章分析了紋波的種類(lèi)、危害、對(duì)設(shè)備的影響,并且分析了常用的紋波抑制方法。并在此基礎(chǔ)之上,第三章分析了移相全橋倍流整流電路的拓?fù)浜凸ぷ髟?給出了移相全橋倍流整流電路的全部工作過(guò)程,分析了移相全橋電路的軟開(kāi)關(guān)范圍以及軟開(kāi)關(guān)特性對(duì)開(kāi)關(guān)噪聲的影響,同時(shí)分析了倍流整流電路對(duì)紋波的抑制作用和原理。第四章給出了移相全橋倍流整流低紋波恒流電源硬件的參數(shù)設(shè)計(jì)以及軟件的實(shí)現(xiàn)方案,同時(shí)分析了采樣時(shí)刻對(duì)系統(tǒng)穩(wěn)定性的影響。最后根據(jù)設(shè)計(jì)方案做出了一臺(tái)以DSP為核心控制器的低紋波恒流電源樣機(jī)。第五章給出了仿真分析和實(shí)驗(yàn)結(jié)果。
[Abstract]:Abstract: with the rapid development of military, medical, industrial and other fields in China, semiconductor lasers have been more and more widely used. Because of its own characteristics, semiconductor laser requires a constant current power supply with low ripple, high precision, high stability and high efficiency. The traditional linear power supply can not be further developed because of its large volume and low efficiency, while the switching power supply has the advantages of small volume, high power density and high efficiency. The advantages of high control accuracy have been widely used. Therefore, the development of a low cost, small volume, small ripple, high efficiency, high stability of the constant current switching power supply has a very important and far-reaching significance. This plays a vital role in the rapid development of all fields in our country. The second chapter of this paper analyzes the types of ripple, harm, the impact on equipment, and analyzes the common methods of ripple suppression. And on this basis. In chapter 3, the topology and working principle of phase-shifted full-bridge current-doubling rectifier are analyzed, and the whole working process of phase-shifted full-bridge current-doubling rectifier is given. The soft switching range of phase-shifted full-bridge circuit and the influence of soft switching characteristics on switching noise are analyzed. At the same time, the effect and principle of current doubling rectifier on ripple suppression are analyzed. In chapter 4th, the hardware parameter design and software implementation of phase shift full bridge current doubling rectifier low ripple constant current power supply are given. At the same time, the influence of sampling time on the stability of the system is analyzed. Finally, a low ripple constant current power supply prototype with DSP as the core controller is made according to the design scheme. The simulation analysis and experimental results are given in Chapter 5th.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN86

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