Title :
The design of digital metal halide lamps electronic ballast
Author :
Qiang, Li ; Lei, Cheng ; Guangqiang, Lv ; Rong, Chen ; Weichao, Zhang ; Gang, Wang
Author_Institution :
School of Automation, Nanjing University of Science and Technology, China
Abstract :
A three-stage constant power Metal Halide Lamps ballast controlled by NXP LPC1114 is presented in the paper. The topology is analyzed in detail, and the improved low-bridge buck circuit is adopted which solves the MOSFET drive difficulty of high-bridge buck circuit. The Metal Halide Lamps constant power control is realized by controlling the buck input power precisely, which is easy-controlling and convenient-realizing, and the digital circuit and the program is designed meantime. The 70W electronic ballast sample designed performs outstandingly in every aspect in test.
Keywords :
Bridge circuits; Electronic ballasts; High intensity discharge lamps; Low pass filters; Metals; Power control; Power harmonic filters; LPC1114; Metal Halide Lamps; constant power; low-bridge buck circuit;
Conference_Titel :
Power Electronics and Motion Control Conference (IPEMC), 2012 7th International
Conference_Location :
Harbin, China
Print_ISBN :
978-1-4577-2085-7
DOI :
10.1109/IPEMC.2012.6258908
