TY - JOUR
T1 - A high-input-voltage backlight module driver for multi-lamp LCD panels
AU - Lo, Yu Kang
AU - Pai, Kai Jun
AU - Wu, Kuan Hung
AU - Chiu, Huang Jen
PY - 2011/5
Y1 - 2011/5
N2 - A half-bridge (HB) resonant inverter for driving a backlight module with multiple cold cathode fluorescent lamps (CCFLs) is proposed. Conventionally, a backlight module driving inverter is designed to operate with a low-input DC voltage. Therefore, a buck converter is required to step down the high-output DC voltage of a power factor correction (PFC) pre-regulator. The circuit cost is high and the conversion efficiency is low. In this letter, a high-input-voltage HB resonant inverter with only one transformer is used to drive multiple lamps. Analysis and design considerations are discussed in detail. Simulations and experimental results are close to the theoretical prediction.
AB - A half-bridge (HB) resonant inverter for driving a backlight module with multiple cold cathode fluorescent lamps (CCFLs) is proposed. Conventionally, a backlight module driving inverter is designed to operate with a low-input DC voltage. Therefore, a buck converter is required to step down the high-output DC voltage of a power factor correction (PFC) pre-regulator. The circuit cost is high and the conversion efficiency is low. In this letter, a high-input-voltage HB resonant inverter with only one transformer is used to drive multiple lamps. Analysis and design considerations are discussed in detail. Simulations and experimental results are close to the theoretical prediction.
KW - cold cathode fluorescent lamp
KW - half-bridge resonant inverter
KW - LCD backlight module
KW - power factor correction
UR - http://www.scopus.com/inward/record.url?scp=79955882990&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79955882990&partnerID=8YFLogxK
U2 - 10.1002/cta.639
DO - 10.1002/cta.639
M3 - Article
AN - SCOPUS:79955882990
SN - 0098-9886
VL - 39
SP - 533
EP - 542
JO - International Journal of Circuit Theory and Applications
JF - International Journal of Circuit Theory and Applications
IS - 5
ER -