Chaser Circuit Diagram. Light chaser is a circuit where 1 led light is switched on after another led. This led chaser circuit using transistors produce a blinking effect that is look same as running effect.
The output frequency of the 555 timer is determined by the resistors r1 rv1 and capacitor c1. The circuit action is such that the visual display appears as a moving dot that repeatedly sweeps from the left led0 to the right led9 in 10 discrete steps as the 4017b outputs sequentially go high and drive the leds on. Figure 6 shows the practical circuit of a 4017b 10 led chaser in which ic1 acts as a variable rate clocking generator and the 4017b ic is wired into the decade counter mode by grounding its clock inhibit pin 13 and reset pin 15 control terminals.
This is very easy 220 v ac led chaser circuit diagram.
12 led chaser using 555 and 4017. The signal from the 555 ic clocks the 4017 decade counter. The circuit is very simple. That s mean leds are chasing each other.
