電動旅游車用開關電源設計

摘要：本文針對電動旅游車電機控制系統電源的需求，用UC3843作為控制芯片，設計了一種多路隔離輸出反激式開關電源，并對其進行了原理分析，電路設計與實驗研究。實驗結果表明按此方法設計的開關電源性能優良，可靠性高。 敘詞：開關電源；電動旅游車；UC3843；反激變換器 Abstract：To meet the power requirement of motor control system for electric sight seeing bus, a multiple isolated output fly-back switching power supply which uses UC3843 as control IC is designed in this paper. The theoretical analysis, circuit design and experimental research of the switching power supply are described. According to the results of testthe switching power supply designed by this method has nice capability and high reliability Keyword：switching power supplyelectric sight seeing busUC3843flyback converter