A Highly Efficient Solar Lantern by Texas Instruments

A Highly Efficient Solar Lantern Block Diagram

• TI had designed solar lantern solution specifically for Indian rural market with circuit protections, more shelf life, user control interface with dimming feature and the most important thing, very high power efficiency providing great backup time.

Key Solution Features:

• Boost Drive Stage for 3W (3 LEDs in Series)
• Stand-by current < 500uAReverse
• Polarity protection for Battery and Panel
• 4 Stage Charging profile for Battery
• User interface in form of Keys and Indication LEDs
• Under-voltage Cutoff

TI Hero Products in this Solution

• MSP430G2231
• TLV70433
• TPS61165

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Article by

Dept. of ECE

Brindavan Institute of Technology & Science (BITS)

Brindavan Institute of Technology & Science