Comprehensive analysis of solar street light controller

Solar street light controller - basic functions

 

Overload protection, short circuit protection, reverse discharge protection, reverse polarity protection, lightning protection, undervoltage protection, overcharge protection, load power-on recovery settings

 

Solar street light controller - main features

 

1. Correct the discharge end voltage (undervoltage protection voltage value) according to the battery discharge rate characteristic curve;

 

2. It has protection functions such as overcharge, over-discharge, overload, and anti-reverse connection;

 

3. It adopts a series PWM charging main circuit, and its voltage loss is 1/4 of the diode charging circuit, which greatly reduces the heat generated by the field effect tube; it uses adaptive direct charging (current and voltage limiting), equalizing charging (constant voltage and current reduction), and floating charging (trickle) three-stage charging method to charge the battery, which extends the service life of the battery; it also has high-precision temperature compensation;

 

4. Eight LED light-emitting tubes are used to indicate the current working status of the controller and the battery power, so that users can understand the usage status more clearly;

 

5. All electronic devices use industrial-grade chips (only for industrial-grade controllers with I), which can be used in cold, high-temperature, and humid environments. It uses a single-chip microcomputer + crystal oscillator timing control, and the timing control accuracy can reach +1 second/24 hours.

 

6. The E2ROM memory is used to record each working control point and each parameter setting value, eliminating the low reliability caused by the mechanical potentiometer;

 

7. The LED is used to display the parameters and parameter values ​​during setting. All settings can be completed with double-key operation, which is extremely convenient and intuitive to use.

 

8. It has dual-channel load output, and each channel can be set for light control + delay, and the delay time of each channel can be modified.

 

9. The method for judging whether it is dark or bright is: when the light is darker than 5LUX and remains for more than 1 minute, it is judged as dark, and when the light is brighter than 7LUX and remains for more than 1 minute, it is judged as bright. Improved the ability to resist interference from fireworks, lightning, car lights, etc.

 

Solar street light controller-application range

 

Solar street light controller is mainly used in solar power supply systems such as homes, commercial areas, factories, transportation, pastoral areas, communications, etc.