A high power factor electronic ballast of projector lamps with variable frequency control

Chun An Cheng; Tsorng Juu Liang; Chia Ming Chuang; Jiann Fuh Chen

A high power factor electronic ballast of projector lamps with variable frequency control

Chun An Cheng, Tsorng Juu Liang, Chia Ming Chuang, Jiann Fuh Chen

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › peer-review

15 Citations (Scopus)

Abstract

A variable-frequency electronic ballast to shorten the projector lamp startup transition with feature of power factor correction is proposed in this paper. The circuit topology is composed of a boost converter as 1st stage and a half-bridge series-resonant parallel-load inverter together with a single-stage step-up igniter as 2nd stage. A 120W prototype was built to test and verify the characteristics of the proposed projector lamp ballast at start-up and steady state conditions. It was found that start-up time was reduced by nearly 50% and a high power factor above 0.98 could be achieved. In addition, the power converter is designed to operate at zero-voltage-switching to reduce power losses. Experimental results show good performance, verifying the functionality of the proposed ballast.

Original language	English
Pages (from-to)	213-219
Number of pages	7
Journal	PESC Record - IEEE Annual Power Electronics Specialists Conference
Volume	1
Publication status	Published - 2002 Jan 1
Event	2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) - Cairns, Australia Duration: 2002 Jun 23 → 2002 Jun 27

All Science Journal Classification (ASJC) codes

Modelling and Simulation
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "A high power factor electronic ballast of projector lamps with variable frequency control",

abstract = "A variable-frequency electronic ballast to shorten the projector lamp startup transition with feature of power factor correction is proposed in this paper. The circuit topology is composed of a boost converter as 1st stage and a half-bridge series-resonant parallel-load inverter together with a single-stage step-up igniter as 2nd stage. A 120W prototype was built to test and verify the characteristics of the proposed projector lamp ballast at start-up and steady state conditions. It was found that start-up time was reduced by nearly 50% and a high power factor above 0.98 could be achieved. In addition, the power converter is designed to operate at zero-voltage-switching to reduce power losses. Experimental results show good performance, verifying the functionality of the proposed ballast.",

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note = "2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) ; Conference date: 23-06-2002 Through 27-06-2002",

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T1 - A high power factor electronic ballast of projector lamps with variable frequency control

AU - Cheng, Chun An

AU - Liang, Tsorng Juu

AU - Chuang, Chia Ming

AU - Chen, Jiann Fuh

PY - 2002/1/1

Y1 - 2002/1/1

N2 - A variable-frequency electronic ballast to shorten the projector lamp startup transition with feature of power factor correction is proposed in this paper. The circuit topology is composed of a boost converter as 1st stage and a half-bridge series-resonant parallel-load inverter together with a single-stage step-up igniter as 2nd stage. A 120W prototype was built to test and verify the characteristics of the proposed projector lamp ballast at start-up and steady state conditions. It was found that start-up time was reduced by nearly 50% and a high power factor above 0.98 could be achieved. In addition, the power converter is designed to operate at zero-voltage-switching to reduce power losses. Experimental results show good performance, verifying the functionality of the proposed ballast.

AB - A variable-frequency electronic ballast to shorten the projector lamp startup transition with feature of power factor correction is proposed in this paper. The circuit topology is composed of a boost converter as 1st stage and a half-bridge series-resonant parallel-load inverter together with a single-stage step-up igniter as 2nd stage. A 120W prototype was built to test and verify the characteristics of the proposed projector lamp ballast at start-up and steady state conditions. It was found that start-up time was reduced by nearly 50% and a high power factor above 0.98 could be achieved. In addition, the power converter is designed to operate at zero-voltage-switching to reduce power losses. Experimental results show good performance, verifying the functionality of the proposed ballast.

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Y2 - 23 June 2002 through 27 June 2002

ER -

A high power factor electronic ballast of projector lamps with variable frequency control

Abstract

All Science Journal Classification (ASJC) codes

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