Method and device for testing at least one LED strip

Details Method and device for testing at least one LED strip Method and device for testing at least one LED strip

2007-07-31

2007-07-31

Nguyen, Phung T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S458000, C324S523000

Reexamination Certificate

active

11119946

ABSTRACT:
A test device for at least one LED strip contains: a voltage source, by way of which a cold test voltage or a warm test voltage can be applied to a parallel circuit formed of a test resistor and the LED strip, and an evaluation unit which records the cold test current flowing when a cold test voltage is present and diagnoses an error if the cold test current deviates from a required value by an above-the-threshold amount. A test device contains a switching element connected in series with the test resistor and an error circuit connected to the at least one LED strip, which during the warm testing records an over-the-threshold deviation of a current flowing through the at least one LED strip from a pre-specified value and for an over-the-threshold deviation opens the switching element.

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patent: 101 31 824 (2003-02-01), None

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