Electronic power supplies for high-density discharge (HID) lamps

Author

Harry, J.E. ; Hoare, D.W.

Volume

9

Issue

5

fYear

2000

fDate

10/1/2000 12:00:00 AM

Firstpage

203

Lastpage

206

Abstract

The principal methods of electronically controlling the power to high-intensity discharge lamps is summarised. These include phase shift control, resonant inverters and variable pulse width control, using half- or full-bridge configurations depending on the power capability of the switching elements. Control of power is possible by varying the pulse width, varying the frequency or both. Varying the frequency is less demanding on the switching characteristics of the devices. Both IGBTs and MOSFETs can be used, however the power loss using IGBTs is generally lower for a given power at lower frequencies. Powers above 10 kW are readily achievable by these means

Keywords

MOSFET; bridge circuits; discharge lamps; insulated gate bipolar transistors; invertors; lamp accessories; lighting control; phase control; power control; power supplies to apparatus; resonant power convertors; switching circuits; 10 kW; IGBT; MOSFET; electronic power supplies; full-bridge configuration; half-bridge configuration; high-density discharge lamps; high-intensity discharge lamps; power capability; power control; power loss; resonant inverters; switching characteristics; variable pulse width control;

fLanguage

English

Journal_Title

Engineering Science and Education Journal

Publisher

iet

ISSN

0963-7346

Type

jour

DOI

10.1049/esej:20000503

Filename

880846