High efficiency Single-Inductor Boost/Buck Inverting Flyback converter with hybrid energy transfer media and multi level gate driving for AM OLED panel

Author

Wang, Se-Won ; Woo, Young-Jin ; Yuk, Young-Sub ; Cho, Gyu-Hyeong ; Cho, Gyu-Ha

Author_Institution

KAIST, Daejeon, South Korea

fYear

2010

fDate

16-18 June 2010

Firstpage

59

Lastpage

60

Abstract

A hybrid-type Single Inductor Boost/Buck Inverting Flyback(SIBBIF) DC-DC Converter is presented. To increase the converter efficiency, a flying capacitor as well as an inductor is adopted as another energy transfer medium together with multi-level gate driver (MLGD). Besides, to enhance load transient response, hybrid fast transient control (HFTC) is adopted. The proposed chip is implemented in a 0.5-μm power BCD process and operates at 1.25 MHz with a max efficiency of 87.1% at an output power of 600 mW.

Keywords

DC-DC power convertors; LED displays; capacitors; compensation; inductors; organic light emitting diodes; transient response; AM OLED; active matrix; dc-dc converter; display panel; flying capacitor; hybrid energy transfer media; hybrid fast transient control; hybrid type single inductor boost-buck convertor; multi level gate driving; organic light emitting diode; transient response; Converters; Driver circuits; Energy exchange; Inductors; Logic gates; Transient analysis; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits (VLSIC), 2010 IEEE Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-5454-9

Type

conf

DOI

10.1109/VLSIC.2010.5560269

Filename

5560269