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

Research output: Contribution to journalConference article

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 languageEnglish
Pages (from-to)213-219
Number of pages7
JournalPESC Record - IEEE Annual Power Electronics Specialists Conference
Volume1
Publication statusPublished - 2002 Jan 1
Event2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) - Cairns, Australia
Duration: 2002 Jun 232002 Jun 27

Fingerprint

ballast
frequency control
Start-up
projectors
Projector
Electric lamps
High Power
luminaires
Electronics
Zero voltage switching
Electric network topology
Power converters
electronics
igniters
power converters
Power Converter
power loss
Inverter
acceleration (physics)
Converter

All Science Journal Classification (ASJC) codes

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

Cite this

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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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A high power factor electronic ballast of projector lamps with variable frequency control. / Cheng, Chun An; Liang, Tsorng Juu; Chuang, Chia Ming; Chen, Jiann Fuh.

In: PESC Record - IEEE Annual Power Electronics Specialists Conference, Vol. 1, 01.01.2002, p. 213-219.

Research output: Contribution to journalConference article

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