The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2017
Filed:
May. 23, 2014
Automotive Lighting Italia S.p.a., Venaria, Reale, IT;
Automotive Lighting Italia S.p.A., Venaria, Reale, IT;
Abstract
A lighting device of an automotive light comprising light sources supplied by a drive current and a control device comprising a control stage generating a control signal on the basis of the difference between the drive current and a predetermined reference current, and a driving stage, which adjust the drive current on the basis of the control signal. The driving stage comprises a voltage stabilizing device, which supplies, in a first operation condition, a stabilized voltage on an intermediate node thereof, a first transistor having a control terminal receiving the control signal; and a second transistor having a control terminal connected to the intermediate node to be set, in the first operation condition, to the predetermined stabilized voltage), a first terminal connected to the light source, and a second terminal connected to a second terminal of the first transistor.