【導讀】現(xiàn)代逆變技術(shù)是研究現(xiàn)代逆變電路的理論和應用設(shè)計方法的一門科學。弦或交流電，供用電器使用。該單相逆變電源通過將直流電輸入半橋逆變電路，從而逆變成方波電源，輸出電壓為220V，頻率為50HZ。逆變電路的控制電路即門。極觸發(fā)電路采用專用集成芯片UC3524。通過確定UC3524的外部電路參數(shù)RT、CT. 脈沖通過驅(qū)動放大電路進行放大，控制晶閘。器模塊、過電壓過電流保護模塊等部分組成。KEYWORDS：inverter，battery，thyristor，drive，UC3524，square-wave

　　

【正文】 ，使系統(tǒng)裝置可靠工作。 另外，由于設(shè)計時間倉促和知識的有限，在系統(tǒng)設(shè)計中也存在著和一些需要解決的問題。這些都需要以后在工作實踐中不斷學習、探索和積累經(jīng)驗加以解決。 總之，本畢業(yè)設(shè)計在理論上是可行的，但在具體應用時還需要不斷改進設(shè)計思路，提高設(shè)計方法，解決實際中遇到的新問題。 洛陽理工學院畢業(yè)設(shè)計（論文） 31 參考文獻 [1] 辛伊波 . 開關(guān)電源基礎(chǔ)與應用 [M]. 西安：西安電子科技大學出版社， [2] 王兆安 ,劉進軍 .電力 電子 技 術(shù) [M]. 西安 ：機 械工 業(yè) 出版社 ,2020. [3] 劉鳳君 . 現(xiàn)代逆變技術(shù)及應用 [M]. 北京：電子工業(yè)出版社， [4] 黃俊等 . 電力電子技術(shù) [M]. 北京：機械工業(yè)出版社， 2020 [5] 徐德鴻 . 開關(guān)電源設(shè)計指南 [M]. 北京：機械工業(yè)出版社， 2020 [6] 陳道煉 . DCAC 逆變技術(shù)及其應用 [M]. 北京：機械工業(yè)出版社， [7] 楊旭等 . 開關(guān)電 源技術(shù) [M]. 北京：機械工業(yè)出版社， [8] 周志敏 . 開關(guān)電源實用技術(shù)設(shè)計與應用 [M]. 北京：人民郵電出版社， 2020 [9] 曲學基等 . 穩(wěn)定電源電路設(shè)計手冊 [M]. 北京：電子工業(yè)出版社， [10] 李愛文 . 現(xiàn)代逆變技術(shù)及其應用 [M]. 上海，科學出版社， 2020 [11] 王小雙，趙靜 . 300W 50HZ 逆變電源設(shè)計 [J].西安，《車輛與工程》， 2020 洛陽理工學院畢業(yè)設(shè)計（論文） 32 致謝 感謝尊敬的辛老師在畢業(yè)設(shè)計中對我給予悉心指導，在我畢業(yè)設(shè)計寫作期間，老師給我提供很 多專業(yè)知識上的指導，沒有老師這樣的幫助，我是不會這樣順利的完成畢業(yè)設(shè)計的，借此機會，我向老師表示感謝。還要感謝和我一起做畢業(yè)設(shè)計的同學。在做畢業(yè)設(shè)計的時間里，我們互相學習互幫互助，他們給我提出了很多寶貴的意見，給了我不少的幫助和支持，在此也真誠的感謝你們。正是在這樣的一個團結(jié)友愛，相互促進的環(huán)境中，在和你們幫助和啟發(fā)中，才有我今天小小的收獲。 通過這一個學期的畢業(yè)設(shè)計，從開始任務到圖書館查找資料，到設(shè)計電路圖，我學到了課堂上學習不到的知識。上課時總覺得所學的知識太抽象，沒什么用途，現(xiàn)在終于認識到了它的重要性 。平時上課老師講的內(nèi)容感覺都聽明白了 ,但真正到了用的時候卻不怎么會用了 ,經(jīng)過這次畢業(yè)設(shè)計才知道 ,要真正學好一門課程 ,并不是把每一章的內(nèi)容搞懂就行了 ,學習是一個循序漸進的過程，需要前后關(guān)聯(lián)，上下總結(jié)。 最后感謝辛老師感謝大家給予的幫助！ 洛陽理工學院畢業(yè)設(shè)計（論文） 33 外文資料翻譯 Switching Power Supply Design Switching power supply work in high frequency, high pulse state, are analog circuits in a rather special kind. Switching power supply is divided into, two forms of isolation and nonisolated, isolated here mainly to talk about switching power supply topologies form below, nonspecified, are to isolate the power. Isolated power supply in accordance with the structure of different forms, can be divided into two categories: a forward and flyback. Flyback transformer primary side means that when the Viceedge conduction cutoff, transformer storage. Close of the primary, secondary side conduction, the energy released to the load of work status, general conventional flyback power multiplex, twintube is not mon. Forward refers to the primary conduction in transformer secondary side while the corresponding output voltage is induced into the load, the direct transfer of energy through the transformer. According to specifications can be divided into conventional forward, including the singletransistor forward, Double Forward. Halfbridge, bridge circuits are all forward circuit. Forward and flyback circuits have their own characteristics in the process of circuit design to achieve optimal costeffective, can be applied flexibly. Usually in the lowpower flyback can be adopted. Slightly larger forward circuit can use a single tube, mediumpower can use Double Forward circuit or halfbridge circuit, lowvoltage pushpull circuit, and the halfbridge work in the same state. High power output, generally used bridge circuit, low voltage can be applied pushpull circuit. Flyback power supply because of its simple structure, and to cut the size of a similar size and transformer inductance, the power supply in the medium has been widely applied. Presentation referred to in some flyback power supply can do dozens of watts, output power exceeding 100 watts would be no 洛陽理工學院畢業(yè)設(shè)計（論文） 34 advantage to them difficult. Under normal circumstances, I think so, but it can not be generalized, PI39。s TOP chips can do 300 watts, an article describes the flyback power supply can be on the KW, but not seen in kind. Power output and the output voltage level. Flyback power transformer leakage inductance is a critical parameter, because the power needs of the flyback transformer stored energy, to make full use of transformer core, the general must be open in the magic circuit air gap, the aim is to change the core hysteresis back line of the slope, so that transformers can withstand the impact of a large pulse current, which is not core into saturation nonlinear state, the magic circuit in the high reluctance air gap in the state, generated in the magic flux leakage is much larger than pletely closed magic circuit . Transformer coupling between the first pole is the key factor determining the leakage inductance, the coil to be very close as far as possible the first time, the sandwich can be used around the law, but this would increase the distributed capacitance transformer. Use core as core with a long window, can reduce the leakage inductance, such as the use of EE, EF, EER, PQbased EI type magic core effective than good. The duty cycle of flyback power supplies, in principle, the maximum duty cycle of flyback power supply should be less than , otherwise not easy loop pensation may be unstable, but there are some exceptions, such as the . PI has introduced the TOP series chip can work under the conditions of duty cycle is greater than . Duty cycle by the transformer turns ratio to determine former deputy side, I am an antishock view is, first determine the reflected voltage (output voltage reflected through the transformer coupling the primary voltage value), reflecting a certain voltage range of voltage increase is duty cycle increases, lower power loss. Reduce the reflected voltage duty cycle decreases, increases power loss. Of course, this is a prerequisite, when the duty cycle increases, it means that the output diode conduction time, in order to maintain output 洛陽理工學院畢業(yè)設(shè)計（論文） 35 stability, more time will be to ensure that the output capacitor discharge current, the output capacitor will be under even greater highfrequency ripple current erosion, while increasing its heat, which in many circumstances is not allowed. Duty cycle increases, change the transformer turns ratio, transformer leakage inductance will increase, its overall performance change, when the leakage inductance energy large enough, can switch to f