The working principle of solar street light solar controller solar street l

From the last issue, we learned that the solar street light's battery panel is composed of semiconductor materials, which generate electricity by the photoelectric effect after being irradiated by light. However, both semiconductor materials and light have certain limitations, resulting in the fact that the current generated by them is also fluctuating. It is not wise for this unstable current to directly enter the battery or directly supply power to the solar street light. In order to obtain a stable current output, we have to use today's protagonist - the controller. The controller is similar to the brain of solar street light. It consists of a series of dedicated chip circuits. It has three main functions: 1. Regulate the current to achieve stable discharge 2. Protect the battery from over-discharging 3. Perform a series of detection and protection on the load and battery In addition, the controller can also adjust the output current period and output power. With the continuous advancement of technology, the functions of the controller will become more and more abundant, becoming the absolute central control system of solar street light. So, what kind of controller does solar street light need? First of all, the controller also needs power consumption, so the lower the power consumption, the more beneficial the effective use of electricity. Second. The charging mode of the controller will affect the charging efficiency. The traditional mode is three-stage charging, that is, three stages of constant current, constant voltage, and floating charge. Although this mode has sufficient protection function, it will waste the part of the current above the limit in the first stage; so there is the MCT mode, which is simply to coordinate the various components and track the maximum current of the panel, thereby maximizing the transmission. efficiency. There are many charging modes for the controller, a safe and efficient controller is the best choice for solar street light. The controller of the solar street light makes the solar street light continuously intelligent, and the era of remote control of the solar street light may be coming soon! With a powerful controller, we also need a powerful current warehouse! That is the battery.
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