| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED drive device capable of lighting an LED even when an ON-period is short.SOLUTION: An LED drive circuit 1 includes: a booster circuit 2; a light emitting pattern generator 5; and a switching switch 3 which feedbacks current flowing through an LED 7 to the booster circuit 2 during an ON-period, and feedbacks a voltage signal obtained by voltage dividing an output voltage of the booster circuit 2 to the booster circuit 2 during an OFF-period. |
