【導(dǎo)讀】源技術(shù)的迅速發(fā)展。開(kāi)關(guān)電源是利用現(xiàn)代電力電子技術(shù)，控制開(kāi)關(guān)晶體管。脈沖寬度調(diào)制控制IC和MOSFET構(gòu)成。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。源成本在某一輸出功率點(diǎn)上，反而高于開(kāi)關(guān)電源，這一成本反轉(zhuǎn)點(diǎn)。是通過(guò)單片機(jī)控制數(shù)模轉(zhuǎn)換來(lái)改變其后的穩(wěn)壓模塊的輸出。能連續(xù)步進(jìn)可調(diào)，并且可實(shí)時(shí)顯示，彌補(bǔ)了傳統(tǒng)穩(wěn)壓電源的不足。子、電器設(shè)備領(lǐng)域中。小功率開(kāi)關(guān)電源的設(shè)計(jì)中,普遍采用專(zhuān)用集成芯片。畢業(yè)設(shè)計(jì)（論文）正文；至少一篇引用的外文文獻(xiàn)及其譯文；附不少于10篇主要參考文獻(xiàn)的題錄及摘要。ARM擴(kuò)展按鍵、數(shù)碼顯示功能實(shí)現(xiàn)數(shù)控輸出電壓。該系統(tǒng)由整流濾波。并采用BuckPWMDC/DC轉(zhuǎn)換器，它。同時(shí)伴有保護(hù)電路，如防浪涌的軟啟。正常有效安全的運(yùn)行。

　　

【正文】 作者： 2020 年 6 月 8 日 XXX： 基于單片 機(jī)的開(kāi) 關(guān)穩(wěn) 壓電源的設(shè)計(jì) 26 主要參考文獻(xiàn) [1] 周立功等 .深入淺出 ARM7LPC212X/214X[M].北京：北京航空航天大學(xué)出版社， [2]童詩(shī)白、華成英 .模擬電子技術(shù)基礎(chǔ) [M].北京：高教出版社， 1995 [3]張 占松、蔡宣三 .開(kāi)關(guān)電源的原理與設(shè)計(jì) [M].北京：電子工業(yè)出版社， 2020 [4]閻石 .數(shù)字電子技術(shù)基礎(chǔ) [M].北京：高等教育出版社， 1995 [5]開(kāi)關(guān)電源紋波的產(chǎn)生測(cè)量和抑制 [J ]. 電源世界， 2020 年第 11 期 [6]劉樹(shù)林 . Buck DC/DC 變換器的輸出紋波電壓分析及其應(yīng)用 . 電 工 技 術(shù) 學(xué) 報(bào) [J ]. 2020 年 2 月 第 22 卷第 2 期 [7]陸治國(guó) .電源的計(jì)算機(jī)仿真技術(shù) [M] .北京：科學(xué)出版社， 2020 [8]Abraham I [M] .王志強(qiáng)， 譯 .北京：電子工業(yè)出版社， 2020 [9] Gent K Andersen. A New Green Power Inverter for FuelCell[J ] .IEEE Trans. on Power Elect ronics ,2020. [10]Chen Guochen ,Qu Keqing , Xu Chunyu , et al . Selection of Carrier Waveforms for PWM Inverter[J ] . Journal of Shang2 hai University( English Edition) ,2020 ,7 (4) :3892394. [11]蓋志武 ,李東升 ,宋蟄存 . 脈沖調(diào)寬式逆變電源的建模及仿真 [J ] . 計(jì)算機(jī)仿真 ,2020 ,20 (3) :97299. [12]Xie Shaojun , Fang Ying ,Zhou Dake. Research on a Novel Inverter Based on DC/ DC Converter Topology[J ] . Journal of Southeast University ,2020 (12) :3412345. [13]Duan Shanxu ,Liu Bangyin ,Kang Yong ,et al . Repetitive PD Cont rol St rategy with Inverse Transfer Function Compen2 sation for CVCF Inverter [ J ] . Journal of Cont rol Theory and Application ,2020 :1212125. [14]童詩(shī)白 .模擬電子技術(shù)基礎(chǔ) [M]，高教出 版社， 2020 [15]周航慈 [16]單片機(jī)應(yīng)用程序設(shè)計(jì)技術(shù) [M]，北京航空航大大學(xué)出版社， 2020 [16]陳永真，王國(guó)玲 .基本 DC/DC 轉(zhuǎn)換器及演化 [ J ] .電源世界， 2020 年第 11 期 [17]蔡宣三 .DC/DC 開(kāi)關(guān)型功率轉(zhuǎn)換器的基本電路 [ J ] .電源世界， 2020 年第 11期 [18]劉樹(shù)林 . Buck DC/DC 變換器的輸出紋波電壓分析及其應(yīng)用 [ J ]. 電 工 技 術(shù) 學(xué) 報(bào) . 2020 年 2 月 第 22 卷第 2 期 武漢理工 大學(xué) 畢業(yè)設(shè)計(jì)（論文） 27 27 附錄一 系統(tǒng)總電路圖一 XXX： 基于單片 機(jī)的開(kāi) 關(guān)穩(wěn) 壓電源的設(shè)計(jì) 28 附錄 二 系統(tǒng)總電路圖 二 武漢理工 大學(xué) 畢業(yè)設(shè)計(jì)（論文） 29 29 附錄 三 外文資料及翻譯 Tandem switching power supply filter inductance calculation of energy storage From the above analysis shows, series switching power supply output voltage Uo and control the switch duty cycle D, but also with the size of the energy storage inductor L, since the energy storage inductor L decided to increase the rate of current (di / dt), ie the output current size. Therefore, the correct choice of the parameters of energy storage inductor is important. The best series switching power supply works in the critical state of continuous current or continuous current status. Tandem switching power supply works in the critical state of continuous current, the filter filtering the output voltage Uo input voltage uo is precisely the average of Ua, this time, switching power supply output voltage regulation as the best, and the output voltage Uo of the ripple is not Great. Therefore, we can proceed from the critical state of continuous current analysis. Let us look at (16) formula: K before the instant turnoff iLm = LUU oi ? Ton+i(0) (16) When the series switching power supply works in the critical state of continuous current, that is D = pm, i (0) = 0, iLm = 2 Io, therefore, (16) type can be rewritten as follows: K before the instant turnoff 2Io = TLUo2 (112) Where Io is flowing through the load current (average current), when D = , its size just flow through the storage inductor L is equal to the maximum current iLm to half。 T for switching power supply duty cycle, T exactly equal to 2 times Ton. Thus obtained: L= TIU004 D= (113) or L TIUo04= TIUi02 D= (114) (113) and (114) type, is the calculation of series switching power supply energy storage filter inductance L, the formula (D = pm). (113) and (114) type of calculation, only the calculation is given in series switching power supply energy storage filter inductance L, the middle value, or average, for the extreme cases, can be calculated on the average re multiplied by a factor greater than 1. If you increase the energy storage filter inductance L, inductance, filter the output voltage Uo will be less than the filter input voltage uo average Ua, therefore, ensure that filter the output voltage Uo is a constant case, is bound to increase the control switch K of the duty cycle D, in order to maintain the stability of the output voltage Uo。 and control switch K, the duty cycle D increases, in turn will flow through the XXX： 基于單片 機(jī)的開(kāi) 關(guān)穩(wěn) 壓電源的設(shè)計(jì) 30 filter inductor L current storage iL discrete time, or by current does not into a continuous current continuous, so that the output voltage Uo of the voltage ripple ΔUPP and further reduces the output voltage more stable. If the stored energy is less than the value of filter inductance L (113)style values, tandem switching power supply filtering the output voltage Uo will be greater than the input voltage uo of the average filter Ua, in ensuring the filtered output voltage Uo is a constant of circumstances, is bound to reduce the duty cycle control switch K of D, in order to maintain the value of the output voltage Uo has remained unchanged。 control switch K of the duty cycle D decreases, there will be flow filtration wave inductor current iL that there is no L continuous, so that the output voltage Uo of the voltage ripple ΔUPP increased, causing the output voltage fluctuations. It can be seen, adjust the series switching power supply output voltage Uo the size of the filter is actually the same time, adjust the flow filtration wave inductor L and the control switch duty cycle D, the size of K. When the control switch K, the duty cycle D is less than , the current wave filter inductor L current iL that there is no continuous flow of filtered output current Io is less than the maximum current iLm wave inductor L of the half, filtering the voltage output voltage Uo ripple ΔUPP will be significantly increase