單端反激式開(kāi)關(guān)電源研究與設(shè)計(jì)

摘要：反激變換器是小功率家電和手持設(shè)備中最常用的電源系統(tǒng)，反激變換器特殊的工作過(guò)程決定了其設(shè)計(jì)方法異于正激變換器。本文對(duì)反激變換電路進(jìn)行研究，介紹了從變壓器電感特性出發(fā)進(jìn)行設(shè)計(jì)的方法，這種方法與等效Boost設(shè)計(jì)方法和電能守恒法相比，更明確的體現(xiàn)了反激變換器的電路原理。 敘詞：反激變換 設(shè)計(jì)方法 電感特性 Abstract： Flyback converter is the most used power system in household appliances and hand-in electrical equipments. The different design method was decided by its special circuit characters with forword topology.With this regards, the dissertation studied the mode of Flyback circuit, introduced the design method based on the transformers inductor character, this method with compared to the Boost equivalent design method and energy conservation law which definitely reflect the nature of　Flyback　topology. Keyword：Flyback convertor Design method Inductor character