Method and apparatuses for controlling the output voltage of a voltage regulator

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12160941
APP PUB NO 20230363063A1
SERIAL NO

18222682

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Abstract

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A device includes a voltage regulator, circuits, and a current bus. Each of the circuits includes at least one LED driver. The voltage regulator supplies electrical energy to a plurality of LED groups. Each of the circuits includes a voltage measuring circuit for detecting voltage drops across the LED drivers. The LED drivers set the currents through the LED groups. Each of the circuits includes a local controller. The local controller withdraws a current from the control bus in dependence on the detected voltage drops of the LED drivers included in the circuit. A bias current source injects a bias current into the control bus. The control bus sums the currents in the current bus. The output of the regulator is controlled based on the summed current.

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Patent Owner(s)

Patent OwnerAddress
ELMOS SEMICONDUCTOR SEHEINRICH-HERTZ STR 1 DORTMUND 44227

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Geistert, Thomas Warstein, DE 3 6
Krieger, Andre' Berlin, DE 3 6
Leitner, Carsten Berlin, DE 3 6
Schmitz, Christian Castrop-Rauxel, DE 43 372

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