【正文】 西安西安電子科技大學(xué)出版社 )。(王水平，宣宗強，張昌民 。3電源工作方式與關(guān)鍵元器件的選擇3?1電源工作方式的選擇兩種不同的電源工作方式比較情況如表7所示。7）品質(zhì)檢查（進行老化、在線驗測，執(zhí)行ISO9000系列標(biāo)準(zhǔn)）進廠后還要經(jīng)過嚴格的老化、篩選。例如：CCCC7。4）選用高質(zhì)量等級的元器件ICICDZ1選用特軍級。2）原則上要盡一切可能減少元器件使用數(shù)目經(jīng)過多次試驗驗證R1CD6完全可以去掉。提高它的可靠性主要從下幾方面（其重要性依次遞減）入手。2 專業(yè)閱讀書目 DC/DC變換器集成電路及應(yīng)用 混合式DC/DC變換器 內(nèi)容摘要：可靠性設(shè)計原則綜上所述，我們可以得出設(shè)計此特種電源的可靠性設(shè)計原則。電力電子技術(shù)的不斷創(chuàng)新，使開關(guān)電源產(chǎn)業(yè)有著廣闊的發(fā)展前景?！　∧K化是開關(guān)電源發(fā)展的總體趨勢，可以采用模塊化電源組成分布式電源系統(tǒng)，可以設(shè)計成N＋1冗余系統(tǒng)，并實現(xiàn)并聯(lián)方式的容量擴展。開關(guān)電源的高頻化就必然對傳統(tǒng)的PWM開關(guān)技術(shù)進行創(chuàng)新，實現(xiàn)ZVS、ZCS的軟開關(guān)技術(shù)已成為開關(guān)電源的主流技術(shù)，并大幅提高了開關(guān)電源的工作效率。由于開關(guān)電源輕、小、薄的關(guān)鍵技術(shù)是高頻化，因此國外各大開關(guān)電源制造商都致力于同步開發(fā)新型高智能化的元器件，特別是改善二次整流器件的損耗，并在功率鐵氧體（Mn?Zn)材料上加大科技創(chuàng)新，以提高在高頻率和較大磁通密度（Bs)下獲得高的磁性能，而電容器的小型化也是一項關(guān)鍵技術(shù)。以下分別對兩類開關(guān)電源的結(jié)構(gòu)和特性作以闡述。人們在開關(guān)電源技術(shù)領(lǐng)域是邊開發(fā)相關(guān)電力電子器件，邊開發(fā)開關(guān)變頻技術(shù)，兩者相互促進推動著開關(guān)電源每年以超過兩位數(shù)字的增長率向著輕、小、薄、低噪聲、高可靠、抗干擾的方向發(fā)展。 　　 （5）低輸出電壓技術(shù)。 　　 （4）模塊化技術(shù)。 　　 （3）功率因數(shù)校正技術(shù)（PFC）。 　　 （2）軟開關(guān)技術(shù)：為提高變換器的變換效率，各種軟開關(guān)技術(shù)應(yīng)用而生，具有代表性的是無源軟開關(guān)技術(shù)和有源軟開關(guān)技術(shù)，主要包括零電壓開關(guān)/零電流開關(guān)（ZVS/ZCS）諧振、準(zhǔn)諧振、零電壓/零電流脈寬調(diào)制技術(shù)（ZVS/ZCSPWM）以及零電壓過渡/零電流過渡脈寬調(diào)制（ZVT/ZCTPWM）技術(shù)等。小功率DCDC變換器的開關(guān)頻率將上升到MHz。開關(guān)電源向集成化方向發(fā)展將是未來的主要趨勢,功率密度將越來越大,重大的技術(shù)進展可能很難實現(xiàn),目前個人覺得還沒有看到實用性特別強的方法出現(xiàn),也許隨著數(shù)字控制的普及,會有一些新的控制理論運用到開關(guān)電源中來. 其第一代產(chǎn)品以1994年推出的TOP100/200系列為代表，第二代產(chǎn)品則是1997年問世的TOPSwitchⅡ。單片開關(guān)電源具有單片集成化、最簡外圍電路、最佳性能指標(biāo)、能構(gòu)成無工頻變壓器開關(guān)電源等顯著優(yōu)點。三端離線式脈寬調(diào)制單片開關(guān)集成電路TOP(Three Terminal Off Line)將PWM控制器與功率開關(guān)MOSFET合二為一封裝在一起，已成為開關(guān)電源IC發(fā)展的主流。傳統(tǒng)的開關(guān)電源一般均采用分立的高頻功率開關(guān)管和多引腳的PWM集成控制器，例如采用UC3842+MOSFET是國內(nèi)小功率開關(guān)電源中較為普及的設(shè)計方法。此外，大規(guī)模集成電路技術(shù)的迅速發(fā)展，又使開關(guān)電源有了質(zhì)的飛躍，掀起了電源產(chǎn)品高頻化、小型化、模塊化的浪潮。二十世紀(jì)八十年代，計算機全面實現(xiàn)了開關(guān)電源化，率先完成計算機的電源換代。二十世紀(jì)五十年代，美國宇航局以小型化、重量輕為目標(biāo)，為搭載火箭開發(fā)了開關(guān)電源。這種傳統(tǒng)穩(wěn)壓電源技術(shù)比較成熟，并且已有大量集成化的線性穩(wěn)壓電源模塊，具有穩(wěn)定性能好、輸出波紋電壓小、使用可靠等優(yōu)點。電子設(shè)備的小型化和低成本化使電源以輕、薄、小和高效率為發(fā)展方向。s switch power producers, reduce by lowering operating current measures such as junction temperature of the device, in order to reduce stress the reliability of products made greatly increased. Modularity is of the general development of switch power supply trend can be modular power ponent distributed power system, can be designed to N + 1 redundant system, and realize the capacity expansion parallel. According to switch power running large noise this one defect, if separate the pursuit of high frequency noise will increase its with the partial resonance, and transform circuit technology, high frequency can be realized in theory and can reduce the noise, but part of the practical application of resonant conversion technology still have a technical problem, so in this area still need to carry out a lot of work, in order to make the technology to practional utilization. Power electronic technology unceasing innovation, switch power supply industry has broad prospects for development. To speed up the development of switch power industry in China, we must walk speed of technological innovation road, bination with Chinese characteristics in the joint development path, for I the highspeed development of national economy to make the contribution. 隨著電子技術(shù)的高速發(fā)展，電子系統(tǒng)的應(yīng)用領(lǐng)域越來越廣泛，電子設(shè)備的種類也越來越多，電子設(shè)備與人們的工作、生活的關(guān)系日益密切。 人民郵電出版社[6] 樓然苗 單片機課程設(shè)計指導(dǎo)[M] 北京航空航天大學(xué)出版社[7] 何希才 新型開關(guān)電源及其應(yīng)用【M】 人民郵電出版社 湖北工業(yè)大學(xué)工程技術(shù)學(xué)院畢業(yè)論文附件材料學(xué)生姓名: 高旭 學(xué) 號: 0825021226 所在系部: 電氣信息系 專業(yè)班級: 08gz信工2班 指導(dǎo)教師: 周茉 日 期: 2011年6月3日 目 錄1 英文文獻翻譯………………………………………………………………………1 英文文獻原文…………………………………………………………………2 中文翻譯……………………………………………………………………….2 專業(yè)閱讀書目……………………………………………………………………… 1 英文文獻翻譯 英文文獻原文題目With the rapid development of electronic technology, application field of electronic system is more and more extensive, electronic equipment, there are more and more people work with electronic equipment, life is increasingly close relationship. Any electronic equipment are inseparable from reliable power supply for power requirements, they more and more is also high. Electronic equipment miniaturized and low cost in the power of light and thin, small and efficient for development direction. The traditional transistors series adjustment manostat is continuous control linear manostat. This traditional manostat technology more mature, and there has been a large number of integrated linear manostat module, has the stable performance is good, output ripple voltage small, reliable operation, etc. But usually need are bulky and heavy industrial frequency transformer and bulk and weight are big filter. In the 1950s, NASA to miniaturization, light weight as the goal, for a rocket carrying the switch power development. In almost half a century of development process, switch power because of its small volume, light weight, high efficiency, wide range, voltage advantages in electric, control, puter, and many other areas of electronic equipment has been widely used. In the 1980s, a puter is made up of all of switch power supply, the first plete puter power generation. Throughout the 1990s, switching power supply in electronics, electrical equipment, home appliances areas to be widely, switch power technology into the rapid development. In addition, large scale integrated circuit technology, and the rapid development of switch power supply with a qualitative leap, raised high frequency power products of, miniaturization, modular tide. Power switch tube, PWM controller and highfrequency transformer is an indispensable part of the switch power supply. The traditional switch power supply is normally made by using high frequency power switch tube division and the pins, such as using PWM integrated controller UC3842 + MOSFET is domestic small power switch p