Improved current control for HID lamp drivers

Dolf H.J. van Casteren, Marcel A.M. Hendrix

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


HID lamps are typically operated at low frequency (100 Hz to 200 Hz) to avoid damage from acoustic resonance. Accordingly, an electronic ballast normally comprises a buck converter to control the lamp current and an ignition circuit and full-bridge for driving the lamp at low frequency. However, the negative dynamic lamp characteristic in combination with a power electronic driver may give a poorly damped response, often resulting in an oscillatory lamp current. Furthermore, aged HID lamps or reduced power mode operation tends to exhibit reignition voltage overshoot, resulting in reduction of lamp performance during life, or even extinguishing. In the present paper a procedure for obtaining the small-signal dynamic characteristics of metal halide lamps is proposed. Using this dynamic model the lamp-ballast interaction is simulated and analyzed. Then a fuzzy-logic control method is presented to cope with the non-linear behavior and improve the lamp-ballast performance. Finally, simulation results are verified with practical measurements on a laboratory prototype.
Original languageEnglish
Title of host publicationIEEE 40th Industry Applications Society Conference, Hong Kong
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Print)0-7803-9208-6
Publication statusPublished - 2005
Event40th Industry Applications Society Conference - Kowloon, Hong Kong
Duration: 2 Oct 20056 Oct 2005


Conference40th Industry Applications Society Conference
Country/TerritoryHong Kong


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