Title :
A compact, high-power-factor HID lamp ballast
Author :
Cheng, Chun-An ; Cheng, Hung-Liang ; Chu, Kuan-Lin ; Lin, Kun-Jheng ; Wang, Ping-Wen
Author_Institution :
Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
This paper presents a two-stage, high-power-factor electronic ballast for high-intensity-discharging (HID) lamps. The presented ballast is composed of a boundary-conduction-mode (BCM)-operated buck-boost-flyback converter to achieve input current shaping, and a high-frequency (20 kHz) combined with low-frequency (200 Hz) square-wave-driven half-bridge-type inverter to supply the lamp with low-frequency square-wave sources. The features of the proposed ballast are high power factor (>0.99), low total harmonic distortion (THD) (<13%) of input utility-line current, cost-effectiveness and lack of acoustic resonance. This paper presents the operational principles and experimental results of the proposed ballast for one 70 W MH-type HID lamp operating with 110 V-rms input AC voltage.
Keywords :
discharge lamps; invertors; lamp accessories; power convertors; power factor; THD; boundary-conduction-mode; buck-boost-flyback converter; frequency 20 kHz; frequency 200 Hz; high-intensity-discharging lamps; high-power-factor HID lamp ballast; high-power-factor electronic ballast; power 70 W; square-wave-driven half-bridge-type inverter; total harmonic distortion; voltage 110 V; Circuits; Electronic ballasts; Filters; Frequency; High intensity discharge lamps; Inverters; Reactive power; Rectifiers; Resonance; Voltage; Electronic Ballast; High-Intensity-Discharging (HID) Lamps; Power Factor;
Conference_Titel :
Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4166-2
Electronic_ISBN :
978-1-4244-4167-9
DOI :
10.1109/PEDS.2009.5385882
