| 摘要 |
PURPOSE:To omit a detector for cost reduction of a solar battery device by deciding the sunshine intensity based on the electric power generated from a solar battery and then controlling the power supplied to a load from the solar battery according to the decided sunshine intensity. CONSTITUTION:The electric power given from a solar battery 1 is stored to an accumulator 3 via a branching device 2. The accumulator 3 supplies the power to a load 5 via a switch device 4. At the same time, a sunchine deciding device 6 is provided via the device 2 to decide the sunshine intensity based on the power generated from the battery 1. Then the device 6 delivers the signal to open and close the device 4 according to the decision of the sunchine intensity. This switching control of the device 4 controls the power supplied to the load 5 in response to the ambient brightness of the battery 1. |
