This is for my motorcycle' tail light.
The tail light of a motorcycle (or any vehicle for that matter) operates in two modes. 1; used during night time, the tail light is dim and becomes bright whent he brake is used. 2; used at day time, the light is off until brake is used.
My idea is to use LED and have the current regulated. The current will also be used to make the LEDs shine brighter by providing more current when the brake is used.
Attached here is the diagram...
The current alteration is done by reducing the resistance of the resistor between pin 1 and 2 of LM317. This is done by connecting another resistor in parallel to the existing resistor. This is done by using an NPN transistor as a switch.
So, everytime the brake is used, the transistor is activated. At night time, the circuit still works even if the brake is not used.
My question is, did i do it correctly? It seems to be working but I am open to other idea.
The tail light of a motorcycle (or any vehicle for that matter) operates in two modes. 1; used during night time, the tail light is dim and becomes bright whent he brake is used. 2; used at day time, the light is off until brake is used.
My idea is to use LED and have the current regulated. The current will also be used to make the LEDs shine brighter by providing more current when the brake is used.
Attached here is the diagram...
The current alteration is done by reducing the resistance of the resistor between pin 1 and 2 of LM317. This is done by connecting another resistor in parallel to the existing resistor. This is done by using an NPN transistor as a switch.
So, everytime the brake is used, the transistor is activated. At night time, the circuit still works even if the brake is not used.
My question is, did i do it correctly? It seems to be working but I am open to other idea.
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