Design and analysis of a piezoelectric transformer-based half-bridge resonant inverter for CCFL backlight modules

Yu Kang Lo; Chang Hua Lin; Kai Jun Pai

doi:10.1109/ISIE.2006.295753

Design and analysis of a piezoelectric transformer-based half-bridge resonant inverter for CCFL backlight modules

Yu Kang Lo^*, Chang Hua Lin, Kai Jun Pai

^*Corresponding author for this work

Undergraduate Program of Vehicle and Energy Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

A half-bridge (HB) resonant inverter for driving a cold cathode fluorescent lamp (CCFL) backlight module with a piezoelectric transformer (PT) is analyzed in this paper. The resonant inductance of the HB inverter is expressed as a function of the load current, the load resistance the PT circuit parameters. Also, the trans-admittance of the PT-CCFL combination network is measured to track the resonant frequency of the PT which may be varied due to the temperature rise. The efficiency of the HB resonant inverter, the output power of the PT and the CCFL driving current are thus remained almost constant. Experiments show that the observed results match the theoretical analyses.

Original language	English
Title of host publication	International Symposium on Industrial Electronics 2006, ISIE 2006
Pages	892-896
Number of pages	5
DOIs	https://doi.org/10.1109/ISIE.2006.295753
Publication status	Published - 2006
Event	International Symposium on Industrial Electronics 2006, ISIE 2006 - Montreal, QC, Canada Duration: 2006 Jul 9 → 2006 Jul 13

Publication series

Name	IEEE International Symposium on Industrial Electronics
Volume	2

Conference

Conference	International Symposium on Industrial Electronics 2006, ISIE 2006
Country/Territory	Canada
City	Montreal, QC
Period	2006/07/09 → 2006/07/13

ASJC Scopus subject areas

Electrical and Electronic Engineering
Control and Systems Engineering

Access to Document

10.1109/ISIE.2006.295753

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Design and analysis of a piezoelectric transformer-based half-bridge resonant inverter for CCFL backlight modules. / Lo, Yu Kang; Lin, Chang Hua; Pai, Kai Jun.
International Symposium on Industrial Electronics 2006, ISIE 2006. 2006. p. 892-896 4078203 (IEEE International Symposium on Industrial Electronics; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lo, YK, Lin, CH & Pai, KJ 2006, Design and analysis of a piezoelectric transformer-based half-bridge resonant inverter for CCFL backlight modules. in International Symposium on Industrial Electronics 2006, ISIE 2006., 4078203, IEEE International Symposium on Industrial Electronics, vol. 2, pp. 892-896, International Symposium on Industrial Electronics 2006, ISIE 2006, Montreal, QC, Canada, 2006/07/09. https://doi.org/10.1109/ISIE.2006.295753

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abstract = "A half-bridge (HB) resonant inverter for driving a cold cathode fluorescent lamp (CCFL) backlight module with a piezoelectric transformer (PT) is analyzed in this paper. The resonant inductance of the HB inverter is expressed as a function of the load current, the load resistance the PT circuit parameters. Also, the trans-admittance of the PT-CCFL combination network is measured to track the resonant frequency of the PT which may be varied due to the temperature rise. The efficiency of the HB resonant inverter, the output power of the PT and the CCFL driving current are thus remained almost constant. Experiments show that the observed results match the theoretical analyses.",

author = "Lo, {Yu Kang} and Lin, {Chang Hua} and Pai, {Kai Jun}",

year = "2006",

doi = "10.1109/ISIE.2006.295753",

language = "English",

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series = "IEEE International Symposium on Industrial Electronics",

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AU - Lin, Chang Hua

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N2 - A half-bridge (HB) resonant inverter for driving a cold cathode fluorescent lamp (CCFL) backlight module with a piezoelectric transformer (PT) is analyzed in this paper. The resonant inductance of the HB inverter is expressed as a function of the load current, the load resistance the PT circuit parameters. Also, the trans-admittance of the PT-CCFL combination network is measured to track the resonant frequency of the PT which may be varied due to the temperature rise. The efficiency of the HB resonant inverter, the output power of the PT and the CCFL driving current are thus remained almost constant. Experiments show that the observed results match the theoretical analyses.

AB - A half-bridge (HB) resonant inverter for driving a cold cathode fluorescent lamp (CCFL) backlight module with a piezoelectric transformer (PT) is analyzed in this paper. The resonant inductance of the HB inverter is expressed as a function of the load current, the load resistance the PT circuit parameters. Also, the trans-admittance of the PT-CCFL combination network is measured to track the resonant frequency of the PT which may be varied due to the temperature rise. The efficiency of the HB resonant inverter, the output power of the PT and the CCFL driving current are thus remained almost constant. Experiments show that the observed results match the theoretical analyses.

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Design and analysis of a piezoelectric transformer-based half-bridge resonant inverter for CCFL backlight modules

Abstract

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Conference

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