Title :
A voltage-mode DC-DC buck converter with digital PID controller
Author :
Chao-Ying Wang;Yang-Chieh Ou;Chih-Feng Wu;Muh-Tian Shiue
Author_Institution :
Department Of Electrical Engineering, National Central University, Taoyuan, Taiwan 32001
Abstract :
This paper presents a PID controller design for voltage-mode DC-DC buck converter. Based on the mathematical derivations and verified by using behavioral models, the digital PID controller is induced to improve the phase margin of DC-DC buck converter. Based on the information of voltage error between feedback voltage and reference voltage, the behavior model for the DC-DC buck converter of voltage-mode with ADC, digital PID controller and digital pulse-width modulator (DPWM) is built to verify the system responses by using MATLAB Simulink.
Keywords :
"Voltage control","Transfer functions","Bandwidth","Load modeling","Feedback loop","Mathematical model","Batteries"
Conference_Titel :
Fuzzy Systems and Knowledge Discovery (FSKD), 2015 12th International Conference on
DOI :
10.1109/FSKD.2015.7382315
