Title :
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
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;
Conference_Titel :
VLSI Circuits (VLSIC), 2010 IEEE Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5454-9
DOI :
10.1109/VLSIC.2010.5560269
