A novel PWM control method for DC-DC converter with fast transient response

Author

Min Lin ; Tomioka, Satoshi ; Nabeshima, T. ; Sato, Takao ; Nishijima, K.

Author_Institution

Adv. Dev. Dept., TDK-Lambda Corp., Kitakyushu, Japan

fYear

2013

fDate

22-25 April 2013

Firstpage

663

Lastpage

667

Abstract

A novel PWM control method with constant switching frequency for DC-DC converters is proposed. The proposed control method has excellent control characteristics and is suitable for the low-voltage high-current dc-dc converter which requires a fast transient response. The transfer function of the proposed controller is obtained by small signal ac analysis, and the dynamic characteristics of the regulator are examined by simulation and experiments. The results show the proposed method provides excellent dynamic performance and stable switching action without using an error amplifier in the controller.

Keywords

DC-DC power convertors; power amplifiers; pulse width modulation; switching convertors; transfer functions; transient response; PWM control method; constant switching frequency; error amplifier; fast transient response; low-voltage high-current dc-dc converter; small signal ac analysis; transfer function; Capacitors; Clocks; Control systems; Pulse width modulation; Switching frequency; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on

Conference_Location

Kitakyushu

ISSN

2164-5256

Print_ISBN

978-1-4673-1790-0

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2013.6527101

Filename

6527101