Title :
A high-power-factor electronic ballast for metal halide lamps with hot restarting
Author :
Lin, Tasi F. ; Moo, Chin S. ; Soong, Ming J. ; Chen, Wei M. ; Lee, Chin R.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
An electronic ballast with a high-power-factor DC-linked resonant inverter is proposed for driving metal halide lamps with hot restart capability. An ignitor is included to generate a relatively high ignition voltage for hot restarting. The DC-link voltage of the electronic ballast is designed to meet the requirements of ignition voltage for cold starting, open-circuit-voltage for hot restarting, and steady-state operation. Satisfied results are obtained from experimental tests on a prototype circuit for an MHQ 70-W metal halide lamp
Keywords :
DC-AC power convertors; electric ignition; invertors; lamp accessories; metal vapour lamps; resonant power convertors; starting; 70 W; MHQ lamp; cold starting; electronic ballast; high-power-factor DC-linked resonant inverter; hot restart capability; hot restarting; ignition voltage; ignitor; metal halide lamps; open circuit-voltage; steady-state operation; Circuit testing; Electrodes; Electronic ballasts; Frequency; Ignition; Inverters; Lamps; RLC circuits; Resonance; Voltage;
Conference_Titel :
Industrial Electronics Society, 2000. IECON 2000. 26th Annual Confjerence of the IEEE
Conference_Location :
Nagoya
Print_ISBN :
0-7803-6456-2
DOI :
10.1109/IECON.2000.972349
