Electronic circuit with an LED module

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United States of America Patent

PATENT NO 10939528
SERIAL NO

16566768

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Abstract

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An electronic circuit and a method are disclosed. The electronic circuit includes an LED circuit, wherein the LED circuit (1) includes: an input (11, 12) configured to receive an input voltage (VIN); a drive circuit (2A) connected to the input (11, 12); and an LED module (3A) connected to the drive circuit (2A) and comprising an LED string (41) with at least one LED. The drive circuit (2A) is configured to monitor the LED module (3A) for the occurrence of an LED short in the LED string (41) and to change from a normal mode to a defect mode upon detection of the LED short, and the drive circuit (2A) is configured, in the defect mode, to operate the LED string (41) in at least one defect cycle that includes deactivating the LED string (41) for a deactivation period, activating the LED string for an activation period, and checking for the persistence of the LED short in the activation period.

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Patent Owner(s)

Patent OwnerAddress
INFINEON TECHNOLOGIES AGGERMAN NOE BE BERG NEUBIBERG BAVARIA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cortigiani, Fabrizio di Vigonza, IT 21 249
Pamato, Marco Schio, IT 12 22
Sartori, Damiano Padua, IT 8 14
Unterweger, Gernot Latschach, AT 10 17

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