Author - Santosh Bhandarkar

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Santosh Bhandarkar	Write for Electronic Design
Santosh Bhandarkar is a scientist/engineer with the Indian Space Research Organization in Bangalore, India. He received a BE (electrical and electronics) from KREC Surathkal and an MTech (control and instrumentation) from IIT Bombay. Email address: santybh@yahoo.com
1 results found for Santosh Bhandarkar, displaying items 1 - 1

September 27, 2007 [Ideas For Design]
High-Power White LED Driver Runs Battery-Operated Portable Lighting
Many people consider white LEDs to be the future of lighting. Strung together, several LEDs can replace an incandescent lamp or a compact fluorescent lamp. High-power white LEDs need a dc voltage of about 3.6 V at a current of about 350 mA to achieve full brightness, about 40 lumens. In portable applications, white LEDs are often powered by sealed lead-acid (SLA) batteries having a typical output of 12 V. The circuit shown in the figure takes this ...