Categories :

How do you make a LED circuit blink?

How do you make a LED circuit blink?

Let’s get started:

  1. Step 1: Add the Transistors. Add the two PNP transistors and the jumper wires from the power BUS to the emitter of each transistor.
  2. Step 2: Add the Capacitors.
  3. Step 3: Add the 100K Resistors.
  4. Step 4: Add the LEDs.
  5. Step 5: Supply Power and Watch the LEDs Blink.
  6. 16 People Made This Project!
  7. 68 Comments.

What is the use of blinking LED?

LED blinking circuit can be used as flashing beacon. LED blinking circuit can be used as vehicle indicator when it is broke down in the middle of the road. It can be used in operation theaters or offices as an indication that you are engaged in work. There are lots of applications with these two circuits.

What is a flashing circuit?

This is a very simple lamp flasher circuit that uses only three components (a capacitor, relay and one resistor) other than the lamp. The relay remains energized until the capacitor discharges and then the lamp extinguishes. The charging and discharging cycle of the capacitor gives a flashing effect to the lamp.

Why the light is blinking?

Flickering or blinking lights are usually caused by one of the following: Problem with the bulb (not in tight enough, lightbulbs are incompatible with your dimmers) Loose light plug. Faulty switch or dimmer.

Why do transistors have 3 legs?

The transistor has three legs, these are the base, collector and the emitter. The base of the transistor is used to switch current through the collector and emitter. When the base is between 0V and 0.7V it is switched off and above 0.7V it is switched on allowing the current to flow from the collector to the emitter.

What is the symbol of PNP transistor?

The PNP Transistor is denoted by the letters PNP. In the diagram below, the symbol for a PNP transistor is depicted. In a PNP transistor, the current flows from the emitter to the collector, as shown by the inward arrow.

What is the advantage and disadvantage of LED?

LEDs are extremely energy efficient and consume up to 90% less power than incandescent bulbs. Since LEDs use only a fraction of the energy of an incandescent light bulb there is a dramatic decrease in power costs. Also, money and energy is saved in maintenance and replacement costs due to the long LED lifespan.

How does a flashing LED circuit work?

The circuit for blinking an LED using transistors is called an Astable Multivibrator. The two capacitors C1 and C2 will alternate between being charged and discharged and thereby turning the transistors ON and OFF. When a transistor is ON it allows current to flow through it so that the LED above it will light up.

What is a LED flasher relay?

The LED flasher unit is a solid state electronic device that is specifically designed for use on vehicles fitted with LED lights. Additionally, the flasher relay has the unique ability to control the flash rate of the vehicles LED directional indicators.

How do I stop my LED lights from flickering?

Summary – How to stop LEDs flickering

  1. Always drive LED products using an LED power supply that’s designed for the job.
  2. Make sure all your LED products are compatible with the control circuits and power supply you’re using.
  3. Check for loose wiring and other faulty connections.
  4. Consider using a constant-current LED driver.