Circuit configuration for signal transmitters with light-emitting diodes
First Claim
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1. A circuit configuration, comprising:
- an electrical circuit supplied with an a.c. voltage having two a.c. phases;
a plurality of LEDs for emitting colored light connected in said electrical circuit, said plurality of LEDs being arranged in a matrix of LEDs including a first group of LEDs and a second group of LEDs;
said LEDs being arranged in electrical sections connected antiparallel to one another and each including only LEDs of said first or second group, respectively, such that said first group of LEDs is connected antiparallel to said second group of LEDs;
said first and second groups of LEDs being respectively driven by the two a.c. phases;
an LED of said first group of LEDs and an LED of said second group of LEDs being disposed in a combined housing; and
cross-connections interconnecting said electrical sections at all junction nodes between said LEDs, defining a multiply redundant matrix of LEDs.
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Abstract
A circuit configuration for emitting light signals in a road traffic systems. A plurality of LEDs for emitting colored light are supplied with an a.c. voltage. The LEDs are arranged in two groups of LEDs which are connected antiparallel to one another. Two respective LEDs of the two groups are disposed together in a housing and the groups are cross-connected to form a multiply redundant matrix. An intrinsically safe signal transmitter configuration is provided that is simple and can easily be monitored.
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Citations
7 Claims
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1. A circuit configuration, comprising:
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an electrical circuit supplied with an a.c. voltage having two a.c. phases; a plurality of LEDs for emitting colored light connected in said electrical circuit, said plurality of LEDs being arranged in a matrix of LEDs including a first group of LEDs and a second group of LEDs; said LEDs being arranged in electrical sections connected antiparallel to one another and each including only LEDs of said first or second group, respectively, such that said first group of LEDs is connected antiparallel to said second group of LEDs; said first and second groups of LEDs being respectively driven by the two a.c. phases; an LED of said first group of LEDs and an LED of said second group of LEDs being disposed in a combined housing; and cross-connections interconnecting said electrical sections at all junction nodes between said LEDs, defining a multiply redundant matrix of LEDs. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification