Computational model of the dynamic behavior of the ZETA converter in discontinuous conduction mode

Abstract

This paper presents a computational model of the dynamic behavior of the ZETA converter working in discontinuous conduction mode (DCM), as well as a design example of the feedback control of this converter using a PID controller. In turn, the PID controller is tuned by a dedicated block of the MATLAB™ design optimization library, thanks to the computational model of the ZETA converter. In order to validate the new computational model some simulations were performed using the PSIMTM simulation tool and, finally, a prototype was built and tested. The obtained results confirm that the new computational model of the dynamic behavior of the ZETA converter in DCM is an effective tool to represent accurately the converter dynamic behavior and consequently, a helpful means to design feedback controllers.