基于TOP204雙路輸出開關電源設計

摘要：基于TOP204單片開關電源控制芯片，實現了精確的±15V雙路輸出。文中根據TOP204的特性，給出了單端反激式開關電源的工程設計方法。結合真空鍍膜電源檢測系統供電要求及特點對其外圍電路進行了分析和討論，并在實驗的基礎上對該電路的性能進行了驗證。 敘詞：開關電源 單端反激 雙路輸出 Abstract：A kind of single-ended fly-back switching power supply.The power supply accurate outputs two channels DC voltages of +15V and -15V, its method of engineering design is brought forward according to the quality of TOP204, and its peripheral circuits are analyzed and discussed in terms of requirements and characteristics of power detection system. At last the performance of the power supply is verified through experiments. Keyword：Switching power supply, Single-ended fly-back, Dual output