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

摘要

This paper presents comparison of a recently proposed tuned-average current-mode with widely accepted average current-mode, in order to control the average inductor current of the constant frequency DC/DC power converters. The buck converter was taken as an example to demonstrate 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 a helping tool for the designer to choose the control method which will meet his needs.