05151631 is referenced by 51 patents and cites 23 patents.

A lighting circuit for a vehicular discharge lamp for lighting a discharge lamp using a DC power supply, comprises an OFF state detector, a DC input voltage detector and a power cutoff means. The OFF state detector detects an OFF status of a discharge lamp. The DC input voltage detector detects if a DC input voltage is within a predetermined range. The power cutoff means inhibits power supply to the discharge lamp when the OFF status of the discharge lamp is detected by the OFF state detector and the DC input voltage lying off the predetermined range is detected by the DC input voltage detector, and permits power supply to the discharge lamp upon reception of a signal indicating that the DC input voltage has returned within that range.

Title
Lighting circuit for vehicular discharge lamp
Application Number
7/760420
Publication Number
5151631
Application Date
September 16, 1991
Publication Date
September 29, 1992
Inventor
Hiroki Shibata
Shimizu
JP
Soichi Yagi
Shimizu
JP
Atsushi Toda
Shimizu
JP
Goichi Oda
Shimizu
JP
Agent
Sughrue Mion Zinn Macpeak & Seas
Assignee
Koito Manufacturing
JP
IPC
B60Q 1/02
H05B 37/00
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