An integrated CMOS DC-DC converter for battery-operated systems

Author

Jung, Sang-Hwa ; Jung, Nam-Sung ; Hwang, Jong-Tae ; Cho, Gyu-Hyeong

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

1

fYear

1999

fDate

36373

Firstpage

43

Abstract

This paper presents an optimum design for a low-voltage, low-power DC-DC converter which has a controller and integrated CMOS switches using a small size inductor (1 μH). Optimum design for the single chip DC/DC converter is achieved by analyzing the amount of conduction and switching losses. Through the loss analyses, it turns out that a constant frequency hard switching PWM converter with synchronous rectifier is most suitable among the several kinds of DC-DC converters for low voltage and low power applications

Keywords

CMOS integrated circuits; DC-DC power convertors; PWM power convertors; losses; rectifying circuits; switching circuits; battery-operated systems; conduction losses; constant frequency hard switching PWM converter; controller; integrated CMOS DC-DC converter; integrated CMOS switches; single chip DC/DC converter; small size inductor; switching losses; synchronous rectifier; DC-DC power converters; Frequency conversion; Inductors; Low voltage; Pulse width modulation converters; Rectifiers; Size control; Switches; Switching converters; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.788978

Filename

788978