Impedance matching operation for the backlight of external electrode fluorescent lamps

Author

Jeong, Jongmun ; Kim, Junghyun ; Jin, Dongjun ; Bong, Jaehwan ; Koo, Jehuan ; Hong, Byeonghee ; Choi, Eunha ; Cho, Guangsup

Author_Institution

Dept. of Electrophys., Kwangwoon Univ., Seoul

fYear

2008

fDate

15-19 June 2008

Firstpage

1

Lastpage

1

Abstract

The electric circuit of backlight operation has been analyzed with respect the impedance matching between the backlight of external electrode fluorescent lamps and a transformer of inverter. The resistance and capacitance of the system has been determined from phase difference between current and voltage and a Q-V Lissajous´ graph from oscilloscope signals. The coupling coefficient and inductance of the primary and secondary coils of the transformer has been introduced using LRC meter. Analytic solution of the impedance matching frequency are well in agreement with the experimental results.

Keywords

capacitance; electric resistance; fluorescent lamps; impedance matching; inductance; invertors; transformers; LRC meter; Q-V Lissajous graph; backlight; capacitance; coupling coefficient; current; external electrode fluorescent lamps; impedance matching operation; inductance; inverter; oscilloscope signals; primary coils; resistance; secondary coils; transformer; voltage; Capacitance; Circuits; Coils; Electric resistance; Electrodes; Fluorescent lamps; Impedance matching; Inductance; Inverters; Oscilloscopes;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Conference_Location

Karlsruhe

ISSN

0730-9244

Print_ISBN

978-1-4244-1929-6

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2008.4591089

Filename

4591089