Improved average inductor current control of the constant frequency DC/DC converters using the tuned-average current-mode

摘要

This paper presents a comparison of a recently proposed tuned-average current-mode with widely accepted average current-mode, in order to control average inductor current or constant frequency DC/DC power converters. The buck converter was taken as an example to demonstrate the superior features of the tuned-average current-mode. Some frequency-domain characteristics are investigated and the conclusions are verified through simulations. Finally, the design considerations for both methods were emphasized as an aid for the designer to choose the control method which will best meet his needs.