外文文翻譯----智能開關(guān)電源-其他專業(yè)-資料下載頁
2025-01-19 09:05本頁面
【導(dǎo)讀】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。離不開可靠的電源，它們對(duì)電源的要求也越來越高?；闺娫匆暂p、薄、小和高效率為發(fā)展方向。傳統(tǒng)的晶體管串聯(lián)調(diào)整穩(wěn)壓電源是。連續(xù)控制的線性穩(wěn)壓電源。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?；木€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(diǎn)。但通常都需要體積大且笨重的工頻變壓器與體積和重量都很大的濾波器。在近半個(gè)世紀(jì)的發(fā)展過程中，開關(guān)電源因具有重量輕、體積小、效。得到了廣泛的使用。此外，大規(guī)模集成電路技。功率開關(guān)管、PWM控制器和高頻變壓器是開關(guān)電源必不可少的組成部分。如采用UC3842+MOSFET是國(guó)內(nèi)小功率開關(guān)電源中較為普及的設(shè)計(jì)方法。上述產(chǎn)品一經(jīng)問世。與線性穩(wěn)壓電源相競(jìng)爭(zhēng)的AC/DC電源變換模塊。目前PFC技術(shù)主要分為有源PFC技術(shù)和無。以適應(yīng)微處理器和便攜式電子設(shè)備的供電要求。聯(lián)合發(fā)展之路，為我國(guó)民經(jīng)濟(jì)的高速發(fā)展做出貢獻(xiàn)。
【正文】 modular, because of its own characteristics in the process of making modular, meet more plex technology and craft manufacture problems. The following two types of switch power supply respectively on the structure and properties of this. Switching power supply is the development direction of high frequency, high reliability, low consumption, low noise, antijamming and modular. Because light switch power, small, thin key techniques are changed, so high overseas each big switch power supply manufacturer are devoted to the development of new high intelligent synchronous rectifier, especially the improvement of secondary devices of the device, and power loss of Zn ferrite (Mn) material? By increasing scientific and technological innovation, to enhance in high frequency and larger magic flux density (Bs) can get high magic under the miniaturization of, and capacitor is a key technology. SMT technology application makes switching power supply has made considerable progress, both sides in the circuit board to ensure that decorate ponents of switch power supply light, small, thin. The high frequency switching power supply of the traditional PWM must innovate switch technology, to realize the ZCS ZVS, soft switch technology has bee the mainstream of switch power supply technical, and greatly improve the efficiency of switch power. For high reliability index, America39。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.
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