Low-power solar power supply device

The invention provides a low-power solar power supply device, and belongs to the field of power management. The low-power solar power supply device comprises a solar cell (1), a processor MCU (2), a load (3), and a power switch circuit (4). The solar cell (1) is a low-power and low-cost solar cell, while the load (3) is a load of high power consumption. The processor MCU (2) of low power consumption controls the power switch circuit (4). The power switch circuit (4) is connected with the solar cell (1) and the processor MCU (2). Through a control scheme integrating long-time accumulation of weak electric energy and short-time release of strong electric energy, the problem on how the low-power solar cell (1) provides enough power for the high-power load (3) is solved. 本发明提供种小功率的太阳能供电装置，属于电源管理领域，其结构包括太阳能电池（1）、处理器MCU（2）、负载（3）、电源开关电路（4）。其中太阳能电池（1）是小功率低成本的太阳能电池，而负载（3）是个功耗较大的负载。低功耗处理器MCU（2）控制电源开关电路（4），电源开关电路（4）连接着太阳能电池（1）和处理器MCU（2），通过长时间积累微弱电能与短时间释放大电能的控制方案，解决小功率的太阳能电池（1）给较大功率的负载（3）提供足够的电量的问题。