Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Patent
1991-05-13
1992-04-07
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
315224, 315287, 315307, 315DIG2, H05B 3702, H05B 4136
Patent
active
051031434
ABSTRACT:
In a process for starting a high pressure gas discharge lamp (GDL) of a motor vehicle of a type for which an alternating voltage is developed from a direct voltage, the alternating voltage being fed to an ignition device to ignite the high pressure gas discharge lamp, a lamp voltage and/or a lamp current is measured, an actual value based on lamp current and/or lamp voltage is compared with a desired value and after ignition of the high pressure gas discharge lamp for a predetermined time span, or period, an additional power is added to an operational power of the high pressure gas discharge lamp by means of changes in the alternating voltage which, on the one hand, is limited by a maximum permissible lamp current and on the other hand is terminated at the end of the predetermined time span. A status value is formed including "lamp on" and "lamp off" values, the actual value is a lamp actual-power-value and the desired value is a lamp desired-power-value, after ignition the additional power produced increases with increasing off time and with decreasing time duration of the last on time and the time span of effectiveness of the additional power increases with increasing off time and with decreasing time duration of the last on time of the high pressure gas discharge lamp.
REFERENCES:
patent: 3913002 (1975-10-01), Steigerwald et al.
patent: 4004188 (1977-01-01), Cooper
patent: 4039897 (1977-08-01), Dragoset
patent: 4240009 (1980-12-01), Paul
patent: 4511195 (1985-04-01), Barter
patent: 4700113 (1987-10-01), Stupp et al.
patent: 4717863 (1988-01-01), Zeiler
patent: 5010279 (1991-04-01), Lathom et al.
patent: 5036256 (1991-07-01), Garrison et al.
patent: 5039921 (1991-08-01), Kakitani
patent: 5046152 (1991-09-01), Bartscher
Dinh Son
Hella KG & Hueck Co.
LaRoche Eugene R.
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