Modeling Buck Converter by Using Fourier Analysis

Mao Zhang, Weiping Zhang, Zheng Zhang
2010 PIERS Online  
By employing theory of PAM (pulse-amplitude-modulation), Buck converter (DC-/DC) have been modeled in this paper. The main contributions are as the followings: (1) A DC transformer model has been proposed to analysis of the voltage gain, efficiency and some steady-state properties; (2) Two a.c. small signal models have been put forward in order to get the transfer functions of input to output and control to output. These a.c. small signal models play an important role on predicting the dynamic
more » ... icting the dynamic behaviors and designing its control system.
doi:10.2529/piers091217204847 fatcat:emvsbx4cpnartbawxwu7djww2m