High-Power White LED Driver Runs Battery-Operated Portable Lighting

by Santosh Bhandarkar, scientist/engineer, Indian Space Research Organization, Bangalore, India, Electronic Design, Sep 27 2007

Focus:
Boost converter based on the SG1524 controller drives a string of 11 1-W white LEDs, while operating from a 12-V lead acid battery. Driver maintains constant LED brightness in the face of battery voltage variation and features dimming capability, battery protection, high efficiency, and low cost

What you’ll learn:

• How to drive a string of high-power white LEDs while operating from a 12-V battery

Notes:
ED's Ideas For Design

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