Overview
Description
The US011-SOLCHRGEV1Z Smart Solar Battery Charger evaluation board uses the ISL81801 buck-boost converter and RA2L1 32-bit MCU to convert energy from a solar panel (user-provided) to charge a lead-acid battery with Maximum Power Point Tracking (MPPT).
Features
- Supports up to 60V input and 60V output for compatibility with a wide range of solar panels and batteries
- Delivers up to 4A output current for faster and more efficient charging
- Programmable output to match battery requirements up to 60V
- Currently optimized for 12V, 12Ah lead-acid batteries
- Tested with 24V/7Ah lead-acid battery
- Uses a four-stage charging algorithm (trickle, bulk, absorption, float) with temperature compensation to extended battery life and ensure safety
- Implements MPPT (Perturb and Observe) to maximize power extraction from solar panels under changing sunlight
- Includes comprehensive protection features against overcurrent, over/undervoltage, reverse polarity, reverse current, and unsafe connections
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