Open AccessV C Digital Controlled DC DC Converter
Author(s) -
R. Sravani,
AUTHOR_ID,
P. Deepak Reddy,
AUTHOR_ID
Publication year - 2020
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.c4295.099320
Subject(s) - forward converter , duty cycle , buck converter , flyback converter , ćuk converter , transient (computer programming) , digital control , boost converter , buck–boost converter , control theory (sociology) , inductor , transient response , electronic engineering , voltage , engineering , computer science , electrical engineering , control (management) , artificial intelligence , operating system
In this paper, the switching of dc-dc converter using voltage/current digital control is proposed. It is the combination of existed digital average voltage and digital average current controls. The stability analysis of V/C digital controlled dc-dc converter is derived by using sampled data model. The transient analysis of V/C digital controlled dc-dc converter is also derived by using z-domain small signal model. The proposed V/C digital controlled dc-dc converter has over current protection, fast load transient response, no sub-harmonic oscillations at any value of duty cycle, and wider stability range. The proposed system is analysed with a simple buck converter. The output voltage and inductor current weighting factors influence the stability boundary and transient performances of V/C digital controlled dc-dc converter. The stability analysis and transient analysis is investigated and verified by circuit simulations.