A novel smart digital control dc-dc converter

Author

Kurokawa, Fujio ; Sakemi, Junya ; Takahashi, Tsukasa ; Bansho, Kouta ; Tanaka, Toru ; Hirose, Keiichi

Author_Institution

Nagasaki Univ., Nagasaki, Japan

fYear

2010

fDate

6-8 Sept. 2010

Abstract

This paper presents a novel smart digital control method using P-I-D control and a model control. This control circuit is able to detect not only the average output voltage but also the input voltage and the output current to improve the dynamic characteristics. As a result, the undershoot of the output voltage, the overshoot of the reactor current and convergence time of the output voltage are improved to 67.7%, 39.6% and 72.5% as compared with the conventional one when the step change of the load resistance R from 100 Ω to 5Ω. Moreover, there are little voltage changes when the step change of the input voltage Ei. It is confirmed that the proposed model control technique is useful to realize the high performance digital control method of dc-dc converter.

Keywords

DC-DC power convertors; digital control; three-term control; P-I-D control; control circuit; model control technique; resistance 100 ohm to 5 ohm; smart digital control dc-dc converter; Converters; Digital control; Inductors; Integrated circuit modeling; Mathematical model; Transient response; Voltage control; dc-dc converter; digital control; model;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606540

Filename

5606540