STEVAL-ILL022V1: 80W Batt Charger w/ LED Driver

The solar-LED streetlight controller consists of one 80 W battery charger and one 25 W LED driver. During the daytime, when there is sufficient sunlight, the charger converts the electricity from the solar panel and charges the battery. At nighttime, the battery powers on the LED lamp as streetlight.

If it is rainy or cloudy for several continuous days, the battery will gradually run out of power. The controller then resorts to the AC mains supply to power on the LED until the battery has had time to fully charge again.

Main features of the solar-LED streetlight controller

• Maximization of electricity conversion efficiency from solar panel by way of maximum power point tracker (MPPT)
  
• Automatic day/night/weather detection
  
• Automatic battery/mains switch over
  
• Constant current control for LED lamp
  
• Battery charge control
  
• Optional LED lighting duration mode
  
• Easy system monitoring via debug LED indicators
  
• Full protection function for OTP, OCP and UVP