| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an illumination lighting control device for a bicycle free from illuminance shortage during low speed travel in the case of driving a bicycle lighting system by a bicycle generator. SOLUTION: Generated output of a hub generator 1 of a bicycle is rectified by a rectifying circuit 2, then made constant voltage by a constant voltage circuit 3 and supplied to a selecting circuit 4, while a charging capacitor C2 of large capacity is connected to the selecting circuit 4, and the charging capacitor C20 is charged by a charging circuit 5. Output voltage of the selecting circuit 4 is supplied to a headlight 7 to light the headlight 7 when the light quantity is low and the bicycle is in a travel state on the basis of the judgment of a lighting control circuit 6 on the travel state and light quantity. In the selecting circuit 4, charging voltage of the charging capacitor C2 is supplied to the headlight 7 when the generated output of the hub generator 1 is low.</p> |
