| 摘要 |
<P>PROBLEM TO BE SOLVED: To alleviate a load of a power supply circuit by a simple configuration. <P>SOLUTION: A lighting control circuit 10 is provided with: a first transistor TR1 receiving a pulse-like voltage Vin to generate a pulse-like first control voltage DUTY1 for lighting control of a first light source (81); a resistance circuit R1 whose one end is connected with an input part (base) of the first transistor TR1; a capacitor C1 whose one end is connected with the other end of the resistance circuit R1, and whose the other end is grounded; and a second transistor TR2 receiving a second pulse-like voltage V2 from the other end of a resistance circuit R1 to generate a pulse-like second control voltage DUTY2 for lighting control of a second light source (82). <P>COPYRIGHT: (C)2013,JPO&INPIT |
