Fast Transient DC-DC Converter with On-Chip Compensated Error Amplifier

Author

Huang, Hong-Wei ; Ho, Hsin-Hsin ; Chien, Chieh-Ching ; Chen, Ke-Horng ; Ma, Gin-Kou ; Kuo, Sy-Yen

Author_Institution

Graduate Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei

fYear

2006

fDate

19-21 Sept. 2006

Firstpage

324

Lastpage

327

Abstract

A novel fast transient DC-DC converter with on-chip compensated error amplifier is presented in this paper. The error amplifier uses on-chip current-mode Miller capacitor to replace a large off-chip capacitor. Only three transistors and one voltage follower are used to implement this novel architecture. Not only on-chip compensated error amplifier is implemented without off-chip components and I/O pins, but also it can have fast transient response. Furthermore, we accurately decrease the transient response time without suffering from the oscillation issue. Experimental results demonstrate the stability and the fast transient response of the DC-DC converters

Keywords

DC-DC power convertors; amplifiers; capacitors; current-mode circuits; power electronics; transient response; DC-DC converter; current-mode Miller capacitor; off-chip capacitor; on-chip compensated error amplifier; transient response; Capacitors; Circuits; DC-DC power converters; Error correction; Load management; Pins; Switches; Time factors; Transient response; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European

Conference_Location

Montreux

ISSN

1930-8833

Print_ISBN

1-4244-0303-0

Type

conf

DOI

10.1109/ESSCIR.2006.307596

Filename

4099769