What should be considered in the design of solar lights?
The working principle of the solar lamp is simple, and the solar cell is made using the principle of photovoltaic effect. During the day, solar panels receive solar radiant energy and convert it into electrical energy for output. Stored in the battery after the charge and discharge controller. At night, when the illuminance gradually decreases to about 101ux, the open circuit voltage of the solar panel is about 4.5V. After the charge and discharge controller detects this voltage value, it will act, and the battery will discharge the lamp cap. After the battery is discharged for 8.5 hours, the charging and discharging control action is performed, and the battery discharge is over. The main function of the charge and discharge controller is to protect the battery.
Influencing factors
The design of solar lights needs to consider the following factors:
Q1. Where is the solar power system used? What is the solar radiation situation in this place?
Q2. What is the load power of the system?
Q3. What is the output voltage of the system, DC or AC?
Q4. How many hours does the system need to work every day?
Q5. In case of rainy weather without sunlight, how many days does the system need to supply power continuously?
Q6. What is the starting current when the load is purely resistive, capacitive or inductive?
Q7. The number of system requirements.
