Generalized Small Signal Models for Asymmetrically-Driven Double Ended Dc to Dc Converters

시비율이 비대칭으로 동작하는 PWM 직류-직류 컨버터의 알반화된 소신호 모델

This paper presents generalized small-signal models for asymmetrically-driven double-ended dc-to-dc converters. The proposed small-signal models include the effects of the parasitic resistances, which have dominant influence on the damping of the secondary power stage double-pole. To confirm the validity of new models, an asymmetrical half-bridge converter with center-taped rectifier and a forward-flyback converter with current doubler rectifier were built, and their performances were compared with the theoretical predictions.