Comparative Performance Evaluation of Current-Mode Controls Adapted to Asymmetrical Half-Bridge Dc-to-Dc Converters

비대칭 하프 브릿지 직류-직류 컨버터에 적용된 전류 제어의 성능평가 비교

Three different current-mode control schemes, peak current-mode control, charge control, and average current-mode control, are investigated for applications to asymmetrical half-bridge dc-to-dc converters. The principles, implementation, and performance of the three control schemes are compared in an attempt to identify the irrespective merits and limitations. Design examples for feedback compensations are given for the three control schemes. A 50 W experimental asymmetrical half-bridge dc-to-dc converter was used to experimentally verify the theoretical results of the paper.