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
| Manufacturer | STMicroelectronics |
|---|---|
| Category | Energy Harvesting |
| Sub-Category | Solar Battery Chargers |
| Eval Board |
Board not Stocked
|
| Application / Target Market |
Lighting: LED Solar Streetlight
|
| Voltage In |
up to 50 V
|
| Cell Type |
Lead Acid
|
| Voltage Out |
13.8 V
|
| Current Out |
- Not Given
|
| Features |
Battery Charger
Fault Indication Open Circuit Protection Thermal Protection Under Voltage Protection, Brown-Out |
| Component Count + Extras |
277 + 5
|
| Design Author |
STMicroelectronics
|
| Main I.C. Base Part |
STM32F101RxT6
TSC101A |
| Input Power |
80 W
|
| Current In |
4.5 A
|
| Battery Capacity |
50 Ah
|
| Date Created By Author | |
| Date Added To Library | 2011-12 |
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