基于UC3844控制的雙管正激式變換器在電動自行車充電器中的應用

摘要：設計一種恒壓充電器，本質是由UC3844控制的雙管正激式開關電源，本文給出了主電路和控制電路的拓撲結構，并對其工作原理進行了詳細分析，通過實驗對其效果進行了驗證， 達到設計要求。 敘詞：UC3844；雙管正激式開關電源；充電器 Abstract： The design of a constant voltage charger, which is a sort of dual-transistor forward switching power supply realized by UC3844 as a core unit, is presented. The topologies of main circuit and control circuit are provided under exhaust analysis in principles, Good agreement is achieved between predictions and measurements, and all the technical indexes are fulfilled. Keyword：UC3844dual-transistor forward switching power supplycharger