| 摘要 |
<p>PURPOSE:To make a circuit compact and reduce its cost by connecting an intra- meter hazard lamp to the output of an AND circuit that uses left and right direction indicator lamps as the two inputs. CONSTITUTION:When a direction indication switch 16 is operated and for example, connecting a contact piece 16a to a contact 16b side, a right direction indicator lamp 13R blinks in a preset cycle by the pulse signal of a blinking drive circuit 12. In this case, current flows into a left direction indicator lamp 13L from a power supply terminal 11 through a diode 23, resistor 25,and diode 17L. However, since the resistance value of the resistor 25 is fully high, the corresponding lamp 13L does not light. In addition, when a hazard switch 15 is turned on, both the direction indicator lamps 13L and 13R blink and the transistor Tr20 of an AND circuit A is set to ON/OFF interlocking with the blinking operation and then a hazard lamp 14 also blink.</p> |
