| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting control circuit of a vehicle lighting fixture, which allows a turn signal lamp to be lit preferentially when a stop signal and a turn signal are inputted simultaneously. <P>SOLUTION: A lighting controller, which has a first input terminal 1, a second input terminal 2, a reference potential terminal GND and a light source 4 and is used for controlling lit states of the vehicle lighting fixtures, includes: a first switching element Q1 for controlling an electric current flowing through a current route between the first input terminal and the light source; a second switching element Q2 which has a control terminal to be connected electrically to the first input terminal and is used for controlling the motion of the first switching element according to the voltage to be applied to the control terminal thereof; a third switching terminal Q3 which has a control terminal to be connected electrically to the second input terminal and is used for controlling the motion of the second switching element according to the voltage to be applied to the control terminal thereof; and a capacitive element C1 to be connected between the control terminal of the third switching terminal and the reference potential terminal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
