Koninklijke Philips Corporation N.v.

Lucent Technologies Inc.

Richard Greischar

Charles Calvin Byers

Bernd Clauberg

Andrew F Scott

Todd Keaffaber

Ameya Dilip Shrotriya

Circuits useful in achieving efficient current control of LEDs based on a dimming control input are described. The circuits use a combination of PWM dimming and analog dimming to achieve a highly efficient LED driver over a wide range of dimming from near 0% to 100% light output.

Method and apparatus for controlling dimming levels of LEDs

One or more programmable clock management components of an apparatus in one example are coupled with a backplane. The one or more programmable clock management components comprise a reconfigurable clock management component. Upon receipt of one or more control signals, the reconfigurable clock management component undergoes a reconfiguration to be able to process one or more frequency signals.

Programmable clock management component reconfiguration upon receipt of one or more control signals to be able to process one or more frequency signals

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Oak Park, IL, United States of America

Richard Greischar