| 摘要 |
PROBLEM TO BE SOLVED: To execute a lighting control operation of a light-emitting part in accordance with a target lighting control rate regardless of variations in circuit elements.SOLUTION: A drive control part which controls output of a light-emitting drive current by a converter part performs lighting control on the light-emitting part by changing a current value of the light-emitting drive current in accordance with e.g., a voltage that is given to a lighting control terminal. A vehicular lighting fixture system comprises: a lighting control signal output part for outputting a lighting control signal that instructs a lighting control rate of the light-emitting part, as a PWM signal; and a lighting control voltage generation part which gives a voltage corresponding to a pulse duty of the lighting control signal to the lighting control terminal. In such a case, the lighting control signal output part corrects the target lighting control rate by an arithmetic operation using a predetermined correction coefficient and outputs the lighting control signal as a PWM signal at the pulse duty based on the corrected lighting control rate.SELECTED DRAWING: Figure 2 |
