The times are constantly advancing, technology is also constantly developing, and many new energy sources are constantly being developed and applied to human society. In addition to wind energy, water energy, and gas combustion, solar energy, as a clean, non-polluting, and recyclable natural energy source, has also received extensive attention from scientists. At present, the utilization of solar energy, a natural resource, is also varied, and solar street lights are one of them. So what are the charging methods of solar street light controllers?
1. Constant current charging method
The constant current charging method is a method of charging by adjusting the output voltage of the charging device or changing the resistance in series with the battery to keep the charging current intensity unchanged. And gradually decreased, so in the later stage of charging, the charging current is mostly used to electrolyze water to generate gas, which will cause too much gas;
2. Constant voltage charging method
During the constant voltage charging process, the voltage of the charging power supply maintains a constant value throughout the charging time, and as the battery terminal voltage gradually increases, the current gradually decreases. Compared with the constant current charging method, the charging process is closer to the best charging standard. This charging method has very little electrolyzed water and avoids overcharging of the battery. , and it is easy to bend the battery plate, causing it to be scrapped;
3. stage charging method
1-stage method: charge with constant current to a predetermined voltage value, and then change to constant voltage to complete the remaining charge;
2, 3-stage charging method: use constant current charging at the beginning and end of charging, and use constant voltage charging in the middle. When the current decays to a predetermined value, it switches from the second stage to the third stage. This method can reduce the gas output to a very small amount, but it is still limited to use as a fast charging method.
The above charging methods of solar street light controllers are shared here. Solar controllers are divided into time control and light control. Half-power controllers are used in lighting systems such as solar street lamps and solar power generation systems. The controller can Prevent the problem of greatly shortening the life of the battery caused by overcharging and overdischarging. Moreover, as a lighting product that does not require electricity, solar street lights have very high safety and reduce electrical hazards caused by bad weather.
