State space control for buck converter using decoupled block diagram approach

Abstract

In this paper, a different manner to analyze a buck converter and how to design its feedback control is proposed. The block diagram of the buck converter plant will be described using space-state averaging and controlled by block decoupled approach, a space-state control technique. With this technique, first order transfer functions are obtained allowing easier synthesis of the involved controllers and the results will be compared to controllers based on k-factor approach for their relevant and acceptable applications in integrated circuit manufacturing and industrial environment.