Feedback design of a piezoelectric transformer-based half-bridge resonant CCFL inverter

Yu Kang Lo; Kai Jun Pai

doi:10.1109/TIE.2007.899978

Feedback design of a piezoelectric transformer-based half-bridge resonant CCFL inverter

Yu Kang Lo^*, Kai Jun Pai

^*Corresponding author for this work

Undergraduate Program of Vehicle and Energy Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The feedback loop design of a half-bridge resonant inverter based on a piezoelectric transformer (PT) for driving a cold cathode fluorescent lamp (CCFL) is presented in this paper. In order to stabilize the CCFL driving current and luminance, the PT-based resonant inverter incorporating a feedback compensator is designed to track the operating frequency. The dynamic equations and the small-signal model of the presented inverter system are established by using the harmonic approximation and harmonic balance procedures. The feedback compensation is performed by applying the derived small-signal block diagram. The complete mathematical analysis and design considerations are presented in detail. The experimental results agree with the theoretical predictions and confirm the validity of the proposed design approach.

Original language	English
Pages (from-to)	2716-2723
Number of pages	8
Journal	IEEE Transactions on Industrial Electronics
Volume	54
Issue number	5
DOIs	https://doi.org/10.1109/TIE.2007.899978
Publication status	Published - 2007 Oct

Keywords

Cold cathode fluorescent lamp (CCFL) inverter
Feedback compensator
Harmonic approximation
Harmonic balance
Piezoelectric transformer (PT)

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/TIE.2007.899978

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title = "Feedback design of a piezoelectric transformer-based half-bridge resonant CCFL inverter",

abstract = "The feedback loop design of a half-bridge resonant inverter based on a piezoelectric transformer (PT) for driving a cold cathode fluorescent lamp (CCFL) is presented in this paper. In order to stabilize the CCFL driving current and luminance, the PT-based resonant inverter incorporating a feedback compensator is designed to track the operating frequency. The dynamic equations and the small-signal model of the presented inverter system are established by using the harmonic approximation and harmonic balance procedures. The feedback compensation is performed by applying the derived small-signal block diagram. The complete mathematical analysis and design considerations are presented in detail. The experimental results agree with the theoretical predictions and confirm the validity of the proposed design approach.",

keywords = "Cold cathode fluorescent lamp (CCFL) inverter, Feedback compensator, Harmonic approximation, Harmonic balance, Piezoelectric transformer (PT)",

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

note = "Funding Information: Manuscript received November 15, 2006; revised April 11, 2007. This work was supporetd by the National Science Council, Taiwan, R.O.C. under Grant NSC 95-2221-E-011-203-MY2. The authors are with the Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R.O.C. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TIE.2007.899978",

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AU - Pai, Kai Jun

N1 - Funding Information: Manuscript received November 15, 2006; revised April 11, 2007. This work was supporetd by the National Science Council, Taiwan, R.O.C. under Grant NSC 95-2221-E-011-203-MY2. The authors are with the Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R.O.C. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TIE.2007.899978

PY - 2007/10

Y1 - 2007/10

N2 - The feedback loop design of a half-bridge resonant inverter based on a piezoelectric transformer (PT) for driving a cold cathode fluorescent lamp (CCFL) is presented in this paper. In order to stabilize the CCFL driving current and luminance, the PT-based resonant inverter incorporating a feedback compensator is designed to track the operating frequency. The dynamic equations and the small-signal model of the presented inverter system are established by using the harmonic approximation and harmonic balance procedures. The feedback compensation is performed by applying the derived small-signal block diagram. The complete mathematical analysis and design considerations are presented in detail. The experimental results agree with the theoretical predictions and confirm the validity of the proposed design approach.

AB - The feedback loop design of a half-bridge resonant inverter based on a piezoelectric transformer (PT) for driving a cold cathode fluorescent lamp (CCFL) is presented in this paper. In order to stabilize the CCFL driving current and luminance, the PT-based resonant inverter incorporating a feedback compensator is designed to track the operating frequency. The dynamic equations and the small-signal model of the presented inverter system are established by using the harmonic approximation and harmonic balance procedures. The feedback compensation is performed by applying the derived small-signal block diagram. The complete mathematical analysis and design considerations are presented in detail. The experimental results agree with the theoretical predictions and confirm the validity of the proposed design approach.

KW - Cold cathode fluorescent lamp (CCFL) inverter

KW - Feedback compensator

KW - Harmonic approximation

KW - Harmonic balance

KW - Piezoelectric transformer (PT)

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Feedback design of a piezoelectric transformer-based half-bridge resonant CCFL inverter

Abstract

Keywords

ASJC Scopus subject areas

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