![]() ![]() The above function is repeated toward the RIGHT side by the right portion LED array when the right signaling is made with the relevant switch.Ī couple of optional switches (S1) may also be included and wired up with the LEDs as shown in the diagram. When one of the turn signal switches is switched ON, say for example the LEFT turn signal is applied, the LED array positioned on the LEFT portion starts sequencing from center, toward LEFT, indicating the intended moving direction of the vehicle. When the brake switch is applied, the LEDs light up all together brightly, indicating the application of the brakes. The LEDs are also discretely wired up to the different vehicle controls like the brake switch, the turn signal switches and an optional DIM tail light switch. The LEDs are connected to the IC 4017 outputs so that they are able to perform the intended sequencing or chasing function. The LED stage consists of the LEDs arranged in a definite sequencing pattern as discussed in above explanation. The pot associated with the IC 4060 may be used for adjusting the sequencing speed as desired. ![]() With every rising peak of the clocks, the outputs of the IC 4017 shift from one pin out to the next in the shown order, making the connected LED illuminate sequentially. The IC 4060 is configured in its standard mode, as an oscillator and is used for driving the IC 4017 with its clock signals. Two arrays of LED are taken from the above outputs such that they “run” in opposite directions when switched ON, however both the channels are never run together since they are used for the LEFT, RIGHT turn indicator purpose and therefore only the relevant side is switched ON depending upon the vehicles turning side. Only six channels of the IC 4017 have been used to avoid lengthy sequencing patterns and crowding of the LEDs. The CIRCUIT DIAGRAM can be divided into two sections, the first consists of the LED driver stage, where the IC 4017 forms the main LED sequencer and is configured in its usual counter/divider mode. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |