This led chaser circuit produces a blinking effect that looks the same as running effect in a particular direction.

Light chaser circuit diagram.

Which we can set output at 6 positions then backward glow by notice at the ic output pin as led can reverse run. All leds blink as moving in one direction. These diodes are similar to signal diodes that are in functioning. The second stage is decade counter cd4017 this will count the astable pulse in a circle pattern. The 1n4148 diodes to protects. The 3 channel light chaser circuit works with two ics 4017 555.

There are a total of 16 pins in the 4017 ic. Which its output glowing will slide down each position by begin from output at 1 is pin 3 2 4 7 10 1 5 6 9 and 11 in sequence. This circuit is made using mainly npn transistors and capacitors and some resistors. When you put your music system in front of the condenser microphone of the light chaser the sound pressure variation is converted into electrical signals by the condenser microphone. The forward operating. The main advantage of this led chaser is it does not require any ic or microcontroller.

220 v ac led chaser circuit diagram. How the circuit works light emitting diodes leds are semiconductor diodes that emit light in a forward bias condition. Here is presenting a circuit diagram of led chaser. When we disconnect the connections of each unit from capacitor to the next unit then each unit will be self powered and all leds will be turned on. Leds are distinguished by the range of wavelengths they emit. The counter ic counts and sends a signal to the next output pins.

The amplified output is fed to ic lb1403 ic3 at its input pin 8. Circuit diagram this circuit has three stages the first one is pulse generator here we use timer ic555 circuit to produce astable pulses. Hamuro running led circuit s schematic diagram the circuit consists of three sub systems call it a unit which built from one led one transistor one capacitor one zener diode and two resistors. When it to pin 11 the output light will back to pin 3 and continue to glow in sequence each step by the signal from ic 555 in the circuit. Light chaser circuit diagram. According to the bandwidth of light that s emitted they require different forward voltage to bias.

Final section is output leds here we can connect different colour leds to make the output beautiful. The 555 timer ic sends a clock pulse to the 4017 counter ic. Circuit diagram of 2 way 12 led running lights using cd4017 and ne555.