Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title Ballast Design for HID Lamps with Automatic Identification
Authors 이치환(Lee, Chi-Hwan)
Page pp.492-496
ISSN 1975-8359
Keywords HTD Ballast ; Electronic Ballast ; Lamp Identification
Abstract An electronic ballast with automatic identification between HPS and MH lamps is proposed in this paper. The behavior of the lamp impedance is studied at both cold-starting and warm-starting. Lamp identification is carried out by taking into account the rate of impedance changing at constant current driving mode just after ignition. The ballast consists of 8-bit microcontroller and LCC resonant inverter.