瑞薩杯20xx電子設計競賽設計報告(已修改)
2025-06-08 13:10 本頁面
【正文】 1 瑞薩杯 20xx 全國電子設計競賽設計報告 單相 ACDC 變換電路（ A 題） 【本科組】 摘 要 ： 本設計是基于 被廣泛應用在小功率及各種電子設備領域的開關電源而設計的直流供電電路。通過變壓器將 220V 的單相工頻交流電源降為 24V，再經(jīng)由 ACDC變換電路、 boost 電路 升壓 ，最后輸出穩(wěn)定的 36V 直流電壓向負載供電，并在此基礎上，實現(xiàn)輸出電流在 ~ 的范圍內(nèi)連續(xù)變化。此外當電源電壓在20V~30V 的范圍內(nèi)發(fā)生波動時，能夠保持輸出電壓基本不變。除了實現(xiàn)以上基本功能外，還對電路進行了過流保護。 關 鍵詞： 開關電源 ACDC 變換電路 boost 電路 穩(wěn)壓 Abstract： This design is based on the lowpower switch powers and those widely applied to all kinds of electronic devices to drive DC circuit .The 220V onephase AC power is lowered to 24V with a transformer ,rectified with a ACDC circuit ,then pulled up with a boost circuit to output permanent 36V DC voltage providing power for load resistance,and on this circumstances,realizing that the output current can consistently change within the range of to ,the output voltage should stay basically unchanged when the source voltage es to fluctuating between 20V~ circuit is ensured with overcurrent protection as well beside the basic functions as mentioned before. Keywords： switch power, ACDC converting circuit , boost circuit , stabilivolt 2 目錄 ......................................................................................................... 3 設計任務 (見附 1) ............................................................................................ 3 設計要求 (見附 1) ............................................................................................ 3 題目分析 .......................................................................................................... 3 ..................................................................................................... 3 主電路方案的提出比較與選擇 ...................................................................... 3 方案選擇： ...................................................................................................... 4 方案論證： ...................................................................................................... 5 具體方案的確立 .............................................................................................. 5 ..................................................................................... 6 系統(tǒng)的總體設計 ............................................................................................. 6 各個電路模塊的設計 ..................................................................................... 6 ........................................................................................................... 10 程序總體流程圖 ............................................................................................ 11 功能模塊的流程圖 ........................................................................................ 12 .................................................................................................................. 12 系統(tǒng)調(diào)試的方案（方法） ............................................................................ 12 系統(tǒng)測試儀器 ...............................................................................................
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