Title :
Design and analysis of automotive HID lamp ballast system using auxiliary winding
Author :
Lee, Kyu-Chan ; Cho, Bo H.
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
A new scheme of the automotive high intensity discharge (HID) lamp ballast systems is proposed. The proposed scheme consists of the high frequency DC-DC converter and low frequency DC-AC inverter, like the conventional HID ballast system. However, this system separates the input voltage of the igniter from the DC link voltage using an auxiliary winding, which results in the use of the lower voltage rating power devices for the HID lamp ballast system, compared with the conventional system. As a result, the proposed system has a lower cost and higher efficiency. For the improvement of the efficiency, the proposed ballast controller using a microprocessor, controls the frequency to operate the DC-DC converter in the critical conduction mode. This paper presents the design and analysis of the proposed ballast and some experimental results
Keywords :
DC-AC power convertors; DC-DC power convertors; automotive electronics; discharge lamps; frequency control; invertors; lamp accessories; DC link voltage; automotive HID lamp ballast system; auxiliary winding; critical conduction mode; efficiency improvement; frequency control; high frequency DC-DC converter; high intensity discharge lamp; igniter; input voltage; low frequency DC-AC inverter; lower voltage rating power devices; microprocessor; Automotive engineering; Breakdown voltage; Costs; DC-DC power converters; Electronic ballasts; Frequency conversion; High intensity discharge lamps; Ignition; Inverters; Switches;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.878923