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Solar Light Manufacturers, Solar Lantern Manufacturers, Solar Lights China
http://www.cn-solargardenlights.com
1.2 Introduction Works
The system works is simple, utilizing the principle of photovoltaic effect solar cell made during the day solar panels to receive solar radiation into electrical energy output, after the charge-discharge controller is stored in batteries at night when the illumination gradually reduced to about 10lux, solar cell board open circuit voltage of about 4.5V, charge and discharge controller detects the voltage value after the action, the battery to discharge lamp. After 8.5 hours of battery discharge, charge and discharge controller action, the battery discharge end. The main role is to protect the charge controller
Batteries.
2, the system design ideas
Solar street lighting design compared with the general solar lighting, the same basic principle, but need to consider more links. Below
Neo-Neon Holdings Limited of Hong Kong's this solar power LED lights, for example, in several aspects for analysis. ???
2.1, the solar cell module selection
Design requirements: the Guangzhou area, the load input voltage 24V power 34.5W, while the number of daily work 8.5h, to ensure that the number of days of continuous rain
7 days.
⑴ Guangzhou region for nearly two decades the average annual amount of radiation 107.7Kcal / cm2, by simple calculation in Guangzhou when the peak sunshine hours about 3.42
4h;
⑵ load on power consumption = = 12.2AH
The total charge current ⑶ solar modules required = 1.05 × 12.2 × ÷ (3.424 × 0.85) = 5.9A