带太阳能板的多电源供电电路及智能切换方法

Power circuit design and intelligent switching method of multi power supplies with solar panels

结合嵌入式设备多电源供电电源的实际需求,设计了一种带太阳能板的多电源供电电路及智能切换方法。系统采用太阳能板、市电和蓄电池三种电源供电,以太阳能板作为主电源优先供电,蓄电池作为备用电源并用于填补切换的供电间隙,可实现太阳能板、市电、蓄电池三种供电电源的"无缝"智能切换以及蓄电池的充、放电智能管理与控制,并可保证在市电不可及或掉电时提高户外无人值守嵌入式设备供电的可靠性。

Considering the actual demand of multi power supplies for embedded equipment, the circuit design and intelligent switching method of multi power supplies with solar panels for embedded equipment were described. Three kinds of power supply, solar panels, commercial power and the battery were adopted, and the solar panels was set as the first priority power supply. The battery was used as backup power supply to fill the power supply gap while switching. ＂Seamless＂ intelligent switch of solar panel, commercial power and the battery, and smart management and control of charging and discharging for the battery could be realized by the design. Furthermore, the reliability of power supply for unattended outdoor embedded devices could be improved, when commercial power was off or inaccessible.