Circuit-arrangement for modulating an LED and method for...

Details Circuit-arrangement for modulating an LED and method for... Circuit-arrangement for modulating an LED and method for...

2006-12-04

2011-11-22

Choi, Jacob Y (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S2090SC

Reexamination Certificate

active

08063579

ABSTRACT:
To achieve high modulation frequencies when modulating an LED, a circuit-arrangement for modulating at least one LED comprises a modulation-circuit (3) parallel to the LED, wherein the modulation-circuit (3) comprises in a series connection a switching device and a threshold device. In a method for operating an LED, the LED is modulated by alternating the switching device between a closed state and an open state.

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