Digital voltage-mode controller design for high gain soft-switching boost converter

In this paper analysis and digital controller design for a soft-switching high gain boost converter (SSHBC) is presented. The steady-state performance and soft transition methodology has been analyzed and then its discrete-time transfer functions models are formulated using system identification toolbox of the MATALB. These linearized models are then used in the design of digital voltage-mode controller. A loopgain is defined and then adapted while designing the digital controller. The digital controller is designed through a pole-zero placement technique. Closed-loop performance of the SSHBC is analyzed. Firstly, the results of controller design and closed-loop analysis are illustrated through MATLAB computer simulations for a 24 to 100 V, 200 Watt prototype converter system and then verified through time-domain simulations. Experimental investigations are the way and will be included in the final paper.