2013•Modern Electronics TechniqueRequires access

Design of multi-channel switching power supply with single-ended flyback

Yuan Wang

Abstract

A TOP223Y-based switching power supply with multi channel output single-end flyback AC/DC module was designed.Peripheral circuits are analyzed by TOP Switch series single chip switching power supply chip and the feedback system composed of TL431 and PC817A.The AC/DC switching power supply whose voltage stabilization adjusting weight is 0.6 and 0.4 with the outputs of +5V/3A and +12V/1A was designed.The experimental results show that the switching power supply has high efficiency,small ripple,high output accuracy and high stability.

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Available abstract

Key concepts: Switched-mode power supply, Flyback transformer, Ripple, Power supply rejection ratio, Flyback diode, Power (physics), Voltage, Flyback converter