Modeling and design of feedback loops for a voltage-mode single-inductor dual-output buck converter

Author

Lin, Kun-Yu ; Huang, Chun-Shih ; Chen, Dan ; Liu, Kwang H.

Author_Institution

Electr. Eng. Dept., Nat. Taiwan Univ., Taipei

fYear

2008

fDate

15-19 June 2008

Firstpage

3389

Lastpage

3395

Abstract

In recent years, single-inductor dual-output (SIDO) converters have found applications in hand-held electronic devices. The focus of the paper is about the modeling and the design of the feedback control loop for a voltage-mode SIDO buck converter working in continuous conduction mode. A small-signal model was developed and verified by simulations and experimental results. This model is practically useful in designing the feedback compensation and predicting the closed-loop performances including circuit stability, line regulation, and output impedances.

Keywords

circuit stability; closed loop systems; feedback; power convertors; voltage control; circuit stability; continuous conduction mode; dual-output buck converter; feedback control loop; feedback loops; hand-held electronic devices; line regulation; output impedances; single-inductor dual-output converters; voltage-mode single-inductor buck converter; Buck converters; Circuit simulation; Diodes; Feedback circuits; Feedback control; Feedback loop; Inductors; Output feedback; Predictive models; Voltage; Buck Converter; Modeling; Single-Inductor Dual-Output (SIDO); Voltage-Mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592479

Filename

4592479