Dynamic Analysis and Control Design of Current-Mode Controlled Active-Clamp Forward-Flyback Converter

전류제어 능동 클램프 포워드-플라이백 컨버터의 동특성 해석 및 제어회로 설계

This paper presents dynamic analyses and control design of the current-mode controlled active-clamp forward-flyback converter. The circuit averaging technique is used to extract the small-signal circuit model for the power stage From the small-signal circuit model of the power stage, the open-loop transfer functions are derived and used for the compensation design. The analysis results are verified using an experimental converter that delivers a 3.3V/10A output from a $40\~60V$ input source.