Loading patent…
AssigneeEpcos AG
InventorsChristian Faistauer, Stefan Leopold Hatzl, Sebastian Brunner
Estimating the term…
A light-emitting diode arrangement includes a light-emitting diode and a coding resistor for coding the light-emitting diode. The coding resistor is embodied as a star connection of a number of resistors. Furthermore, a module includes a plurality of light-emitting diode arrangements. Furthermore, a method for producing a light-emitting diode arrangement is specified, wherein the coding of a coding resistor is carried out depending on a determined characteristic of the light-emitting diode.
A light-emitting diode arrangement, comprising:
A light-emitting diode arrangement, comprising:
A light-emitting diode arrangement, comprising:
A method for producing a light-emitting diode arrangement, the method comprising:
A method for producing a light-emitting diode arrangement, the method comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
No references of this kind are recorded.
Package configurations
Circuit arrangements for operating light-emitting diodes [LED]: controlling the colour of the light
Marks, test patterns or identification means: for electrical inspection or testing
Incorporating printed electric components, e.g. printed resistors, capacitors or inductors: incorporating printed resistors
About 6 years 11 months of term left · ends 25 Sep 2033 (estimated)
This patent application is a national phase filing under section 371 of PCT/EP2013/069944, filed Sep. 25, 2013, which claims the priority of German patent application 10 2012 110 397.6, filed Oct. 30, 2012, each of which is incorporated herein by reference in its entirety.
A light-emitting diode arrangement comprising a light-emitting diode (LED), in particular a light-emitting diode chip, is specified.
LEDs can be used in the automotive sector, for example, in front headlights. As a result of variations in the manufacturing process, LEDs often have different characteristics with regard to luminous efficiency and color for identical driving currents. Such fluctuations are undesirable.
The subjects described here are explained in greater detail below on the basis of schematic exemplary embodiments, which are not true to scale.
In the figures:
FIG. 1 shows a schematic circuit diagram of a light-emitting diode arrangement;
Preferably, in the following figures, identical reference signs refer to functionally or structurally corresponding parts of the different embodiments.
FIG. 1 shows a schematic circuit diagram of a light-emitting diode arrangement 1. The light-emitting diode arrangement comprises a light-emitting diode (LED) 2, in particular a light-emitting diode chip, and a coding resistor RC. The coding resistor RC is connected in parallel with the LED 2. The resistance of the coding resistor RC is specific to a characteristic of the LED 2, such that the specific coding resistor RC represents a coding for the specific LED 2. In particular, the coding resistor RC can code the luminous efficiency or the color of the LED 2 in the case of a current-voltage characteristic curve. By measuring the resistance of the coding resistor RC, it is thus possible to deduce the characteristic of the LED 2.
The light-emitting diode arrangement 1 comprises an ESD protection component 3, which is interconnected in parallel with the LED 2. The ESD protection component 3 preferably serves to protect the light-emitting diode chip against overvoltages, in particular, against electrostatic discharges.