IP Library Granted Patent US 9,980,339
Granted Patent B2
US 9,980,339 · App. 15/202,605 · Granted May 22, 2018

Illumination device

Inventor: Juergen Friedrich (Hattersheim, DE)
Assignee: OSRAM GMBH
H05B33/0887B60Q1/0094H05B33/083H05B33/0842
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Quick Facts
Patent No.
US 9,980,339
App. No.
15/202,605
Granted
May 22, 2018
Kind
B2
Abstract

An illumination apparatus for a motor vehicle is provided. The illumination device may include at least one semiconductor light source arrangement, and means for regulating or controlling the supply current for the at least one semiconductor light source arrangement, the means having at least one resistance element with a temperature-dependent resistance value.

Claims (22)

1. An illumination apparatus for a motor vehicle, the illumination device comprising:

at least one semiconductor light source arrangement;

a controller configured to regulate or control the supply current for the at least one semiconductor light source arrangement, the controller comprising at least one resistance element with a temperature-dependent resistance value;

at least one suppressor diode which is connected in a parallel branch to the at least one semiconductor light source arrangement; and

at least one capacitor connected in parallel with the at least one suppressor diode.

2. The illumination device of claim 1 ,

wherein the controller comprises at least one further resistance element.

3. The illumination device of claim 1 ,

wherein the controller comprises at least one transistor.

4. The illumination device of claim 1 ,

wherein the controller comprises at least one Zener diode.

5. An illumination apparatus for a motor vehicle, the illumination device comprising:

at least one semiconductor light source arrangement;

means for regulating or controlling the supply current for the at least one semiconductor light source arrangement, the means comprising at least one resistance element with a temperature-dependent resistance value;

at least one suppressor diode which is connected in a parallel branch to the at least one semiconductor light source arrangement; and

at least one capacitor connected in parallel with the at least one suppressor diode.

6. The illumination device of claim 5 ,

wherein the means comprises at least one further resistance element.

7. The illumination device of claim 5 ,

wherein the means comprises at least one transistor.

8. The illumination device of claim 5 ,

wherein the means comprises at least one Zener diode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2019
From: OSRAM GMBH
To: OSRAM BETEILIGUNGSVERWALTUNG GMBH
Reel/Frame 051381/0677 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2016
From: FRIEDRICH, JUERGEN
To: OSRAM GMBH
Reel/Frame 039349/0226 →
Priority Claims (1)
DE 10 2015 214 090 · Jul 24, 2015 · national
Continuity (1)
Related Publication 20170027038A1 · Jan 26, 2017