【正文】 本科生畢業(yè)論文（設(shè)計） 題 目 開關(guān)電源模塊并聯(lián)供電系統(tǒng) 二級學(xué)院 物理與電子信息學(xué)院 專 業(yè) 通信工程 學(xué)生姓名 孫星 學(xué) 號 080305046 年級 2021 指導(dǎo)教師 甘德成 職稱 講師 教務(wù)處制表 2021 年 4 月 15 日 宜賓學(xué)院 2021屆畢業(yè)設(shè)計（論文） II II 目錄 摘要 ............................................................................................................................... III Abstract........................................................................................................................ IV 第一章 緒論 .................................................................................................................... 1 .................................................................................................. 1 ............................................................................................................ 1 ............................................................................................................ 2 .................................................................................................. 2 發(fā)揮部分要求 .......................................................................................... 2 第二章 本系統(tǒng)總體方案設(shè)計 ............................................................................................ 3 .......................................................................................... 3 DCDC變換器方案論證 ............................................................................. 3 ......................................................................... 3 系統(tǒng)整體框圖 .......................................................................................... 4 .......................................................................................... 4 DCDC變換器穩(wěn)壓方法 ............................................................................. 4 電流電壓檢測分析與計算 ......................................................................... 5 均流方法的分析 ....................................................................................... 6 過流保護及自恢復(fù)分析 ............................................................................ 6 第三章 硬件電路設(shè)計 ...................................................................................................... 7 DCDC電路設(shè)計 .................................................................................................. 7 .............................................................................................. 8 輔助供電模塊設(shè)計 .............................................................................................. 8 第四章 軟件設(shè)計部分 ...................................................................................................... 9 IAR FOR 430 簡介 .............................................................................................. 9 ......................................................................................................... 9 第五章 系統(tǒng)測試 ............................................................................................................11 主要元器件 .......................................................................................................11 測試方法 ...........................................................................................................11 測試儀器清單 ....................................................................................................11 ..................................................................................... 12 ................................................................................................... 12 4A均流測試 ..................................................................................................... 12 任意比分流點測試 ............................................................................................ 13 .............................................................................. 13 ................................................................................................... 13 誤差分析 ........................................................................................................ 13 第六章 總體結(jié)論 .......................................................................................................... 14 致謝 ............................................................................................................................... 15 參考文獻 ........................................................................................................................ 16 附錄 ............................................................................................................................... 17 控制程序 ................................................................................................................. 17 宜賓學(xué)院 2021屆畢業(yè)設(shè)計（論文） III III 摘要 本設(shè)計采用超低功耗單片機 MSP430F247 為主要控制核心部件，應(yīng)用同步BUCK 拓撲結(jié)構(gòu)作為高效率的 DCDC 變換；設(shè)計并制作了開關(guān)電源模塊并聯(lián)供電系統(tǒng)。應(yīng)用 AMSCS 原理和 ECM 控制模式實現(xiàn)動態(tài)均流控制；使用 電流并聯(lián)監(jiān)視器件 INA194 作為電流檢測； 使用高效率 TPS5430 芯片設(shè)計輔助電源。實現(xiàn)了系統(tǒng)在 500mA4A 范圍內(nèi)可自動分配或者手動任意預(yù)制兩路 DCDC 模塊的電流比大小并顯示相關(guān)參數(shù)。系統(tǒng)元件 少，性價比高、系統(tǒng)效率高達 85%以上、很好的完成了基本部分和發(fā)揮部分的要求， 本設(shè)計獲得全國大學(xué)生電子設(shè)計競賽國家一等獎。 關(guān)鍵字： MSP430F247； AMSCS； ECM；動態(tài)均流；效率； 宜賓學(xué)院 2021屆畢業(yè)設(shè)計（論文） IV IV Abstract This design uses the low power consumption MCU, MSP430F247 ,as the main control the core part and uses the application of synchronous BUCK topology structure as high efficiency of the DCDC transform .The design is made up of the switch power supply module parallel power supply system and uses AMSCS principle and ECM control model to achieve dynamic all flow control. The design uses current parallel surveillance devices, INA194, as electric current detection and successfully uses a high efficiency chip, TPS5430, to design auxiliary power supply. Finally the design realized that current can be set range from 50