Title :
Design of good approximate 2-degree-of-freedom digital controller for robust DC-DC converter
Author :
Higuchi, Kohji ; Nakano, Kazushi ; Kajikawa, Tatsuyoshi ; Takegami, Eiji ; Tomioka, Satoshi ; Watanabe, Kazushi
Author_Institution :
Dept. of Electron. Eng., Univ. of Electro-Commun., Tokyo, Japan
Abstract :
Robust DC-DC converter which can cover extensive load changes and also input voltage changes is needed. In this paper, we propose a method of designing good approximate 2-degree-of freedom (2DOF) digital controller which makes the control bandwidth wider and at the same time makes a variation of the output voltage very small at a sudden change of resistive load. The proposed approximate 2DOF digital controller is actually implemented on a DSP and is connected to a DC-DC converter. Experimental studies demonstrate that this type digital controller can satisfy given specifications.
Keywords :
DC-DC power convertors; digital control; digital signal processing chips; load regulation; robust control; voltage control; 2-degree-of freedom digital controller; 2DOF digital controller; DSP; input voltage change; load change; resistive load; robust DC-DC converter; DC-DC power converters; Digital control; Robust control;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414861
