Title :
High power density electronic ballast for HID lamps
Author :
Zhou, Jinghai ; Tao, Fengfeng ; Lee, Fred C. ; Onishi, Naoki ; Okawa, Masanao
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A high power density electronic ballast circuit for high intensity discharge (HID) lamp is proposed. Approaches to achieve high power density are studied. Topologically, the zero-voltage-switching quasi-square-wave concept is adopted when developing the high frequency high efficiency DC/DC front-end converter for the ballast based on the semiconductor loss analysis. On the other hand, a PCB level packaging method is proposed to deal with the thermal related issues, which further improves the power density of the system. A prototype is developed, with a maximum efficiency of 93.3% and the power density of 38.7 W/inch/sup 3/.
Keywords :
DC-DC power convertors; discharge lamps; lamp accessories; losses; printed circuits; thermal management (packaging); 500 kHz; 93.3 percent; HID lamps; PCB level packaging method; high frequency DC/DC front-end converter; high power density; high power density electronic ballast; semiconductor loss analysis; thermal issues; zero-voltage-switching quasi-square-wave DC/DC front end; Acoustic emission; Circuits; Electronic ballasts; Fluorescent lamps; Frequency conversion; High intensity discharge lamps; Impedance; Resonance light scattering; Resonant frequency; Temperature;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1043789
