Ordinary street lamps are made of alternating current power supply, even LED street lamp is also by ac rectifier into dc power supply, power resources increasingly tense, now pay attention to energy conservation and environmental protection, pollution-free and solar energy can be recycled.
So more and more city streets to change
ordinary street lamps are made of alternating current power supply, even
LED street lamp is also by ac rectifier into dc power supply, power resources increasingly tense, now pay attention to energy conservation and environmental protection, pollution-free and solar energy can be recycled.
So more and more cities have replaced street lights with solar street lamp, environmental protection and reduce the fiscal expenditure, LED street lamp, fully staffed.
the composition of the solar street lamps
by solar panels, solar controller, battery solar street lamps, the LED driver module, the LED street lamp, lamp posts, etc.
The system composition block diagram as shown below.
the role of the solar panels
the role of solar panels is collecting light, the light energy into electrical energy, is the core component of solar street light.
Solar panels to comprehensively consider when selection of output voltage, output current, peak power and conversion efficiency, etc.
Solar panels is output by the direct current.
The role of
controller
the controller is the brain of the whole system, the main charge and discharge management role.
Stronger light during the day, the controller of street lighting, solar panels at the same time control the battery charging, the battery storage;
At night, such as the LED light controller, at the same time, control of battery discharge voltage can be converted to the appropriate the working voltage of the LED, the controller has an optical module, is usually composed of photosensitive resistance photosensitive circuit.
the role of the storage battery
battery store electricity role, will light conversion of electrical energy storage in the daytime, evening under the action of the controller for the LED power supply, the
LED lighting lit up.
all in all, the ordinary street lamp to solar street light, need to add solar panels, solar controller, battery lamp, LED drive might need.
